View source for VJET/Java2Js Language Translation Reference mapping

== Lexical Structure ==

=== Comment ===

Not supported in AST parser

=== Identifier ===

=== Keywords ===

Below map shows java keyword mapping in JS/VJO

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java-keyword
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Js – keyword
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Js-reserved 

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| break

case 

catch

continue 

default

do

else

finally

for 

if

try

throw

instanceof 

new

return

void

switch

this

while

| style="border:1px solid #AAAAAA;padding: 0.2em;"| break

case 

catch

continue 

default

do

else

finally

for 

if

try

throw

instanceof 

new

return

void

switch

this

while

| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"|

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| boolean

char

short

int

double

float

long

short

public

protected 

private

final


implements 

extends

class

interface

import

static

enum

package 
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"| boolean

Int

short

int

double

float

long

short

public

protected 

private

final


<nowiki>< satisfies ></nowiki>

<nowiki>< .inherits ></nowiki>

<nowiki>< .ctype ></nowiki>

<nowiki><.itype></nowiki>

<nowiki>< vjo.needs ></nowiki>

<nowiki>< .props({ </nowiki>}) >

<nowiki>< vjo.etype("pkg.Enum") ></nowiki>

<nowiki><</nowiki> vjo.ctype("vjo.pkgname")>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| boolean

char

short

int

double

float

long

short

public

protected 

private

final


implements 

extends

class

interface

import

static

enum

package

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| abstract

byte

const- reserved

goto -reserved

super

native

synchronized

transient


volatile

throws

assert

strictfp
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"| abstract

byte

const

goto 


super

native

synchronize

transient


volatile

throws


debugger

export

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"| delete

function

in 

var

with

typeof
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"|

|}

=== Literals ===


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| JS
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| desc

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Boolean literals


true, false
| style="border:1px solid #AAAAAA;padding: 0.2em;"| true. false
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Literals true/false are directly mapped in java script

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| null



| style="border:1px solid #AAAAAA;padding: 0.2em;"| null / false 



| style="border:1px solid #AAAAAA;padding: 0.2em;"|

|}

=== Seperators ===


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| JS

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| ( ) { } <nowiki>[ </nowiki>] <nowiki>; </nowiki>, .
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Directly mapped
|}

=== Operators ===

All operators are directly mapped into js. 

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java operators
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Js
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Description

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| # <nowiki>= </nowiki>
# > 
# <nowiki><</nowiki>
# ! 
# ~ 
# ?:
# <nowiki>==</nowiki>
# <nowiki><=</nowiki>
# >= 
# != 
# && 
# || 
# ++ 
# --
# +
# - 
# <nowiki>* </nowiki>
# / 
# & 
# | 
# ^ 
# % 
# <nowiki><< </nowiki>
# >> 
# >>>
# += 
# -= 
# <nowiki>*= </nowiki>
# /= 
# &= 
# |= 
# ^<nowiki>= </nowiki>
# %= 
# <nowiki><<= </nowiki>
# >>= 
# >>>=


| style="border:1px solid #AAAAAA;padding: 0.2em;"| a= b;

a = a+b;

a = a-b;

a = a * b;

a = a/b;

a = a&b;

if(a>b){}

if<nowiki>(a<b){}</nowiki>

if<nowiki>( !(a==b) && (x!=y) || (a<x) || (b>x) || (b<=a) || (x>=y) ){}</nowiki>

a= a++;

a= a--;

a = b^a;

a = a%b;

a +=b;

a -=b;

a *=b;

a /=b;

a &=x;

a ^= b;

a %= b;

<nowiki>a<<=b;</nowiki>

a>>=b;

a>>>=b;
| style="border:1px solid #AAAAAA;padding: 0.2em;"| a=b;

a=a+b;

a=a-b;

a=a*b;

a=parseInt(a/b);

a=a&b;

if(a>b){

}

if<nowiki>(a<b)</nowiki>{

}

if<nowiki>( !(a==b)&&(x!=y)||(a<x)||(b>x)||(b<=a) || (x>=y))</nowiki>{

}

a=a++;

a=a--;

a=b^a;

a=a%b;

a+=b;

a-=b;

a*=b;

a=parseInt(a/b);

a&=x;

a^=b;

a%=b;

<nowiki>a<<=b;</nowiki>

a>>=b;

a>>>=b;
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Direct translation

|}

== Types, Values and Variables ==

=== Primitive types and values ===


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| js
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
boolean 

byte 

char 

short 


int 

long

double

float
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
boolean 

int, indirectly supported , declared as int

int, indirectly supported, declared as int

short 


int 

long

double

float

|}

=== Reference Types & Values ===

==== Class type ====


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests;

public class A {
	int a=10;
	public int p=50;
	String city;
	String state;
	public void setCity(String c ){
		this.city=c;
	} 
	public String getCity(){
		return this.city;
	}
	protected void setState(String s){
		this.state=s;
	}
	protected String getState(){
		return this.state;
	}
	String foo(){
		return "foo";
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.A")
.protos({
	//> int a
	a:10,
	//> public int p
	p:50,
	//> String city
	city:null,
	//> String state
	state:null,
	//> public void setCity(String c)
	setCity:function(c){
		this.city=c;
	},
	//> public String getCity()
	getCity:function(){
		return this.city;
	},
	//> protected void setState(String s)
	setState:function(s){
		this.state=s;
	},
	//> protected String getState()
	getState:function(){
		return this.state;
	},
	//> String foo()
	foo:function(){
		return "foo";
	}
})

.endType();
</source>
|}

==== interface type ====

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.Inheritance;
public interface Interface3 {
	 String C3="c3";
	 String method3();
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.itype("com.ebay.dsf.javatojs.tests.Inheritance.Interface3")
.props({
	//> public String C3
	C3:"c3"
})
.protos({
	//> public String method3()
	method3:function(){
	}
})
.endType();
</source>
|}

==== Array type ====

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
long avg = 10;
long[] la = {1+avg,2,3}; 
int[][] twoDimArray = {{1,2,3}, {4,5,6}};
String[] sa = { "a", "b", "c"};
String[] sa2 = new String[2];
Employee[] sa3 = new Employee[2];
boolean boolArr1[] 
= new boolean[]{true};
boolean boolArr2[][] 
= new boolean[][]{{false}};
boolean boolArr11[] 
= new boolean[twoDimArray[0][0]];
boolean boolArr12[][] 
= new boolean[twoDimArray[0][0]] [twoDimArray[0][1]];
</source>

| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
var avg=10;
var la=[1+avg,2,3];
var twoDimArray=[[1,2,3],[4,5,6]];
var sa=["a","b","c"];
var sa2=new Array(2);
var sa3=new Array(2);
var boolArr1=[true];
var boolArr2=[[false]];
var boolArr11=new Array(twoDimArray[0][0]);
var boolArr12=new Array;
</source>
|}

=== Type Variables ===
Implemented in comment

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair<T, S>{
	private T first;
	private S second;

	public Pair(T f, S s){ 
		first = f;
		second = s; 
	}

	public T getFirst() {
		return first;
	}

	public S getSecond(){
		return second;
	}
}
</source>

| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.protos({
	//> private T first
	first:null,
	//> private S second
	second:null,
	//> public constructs(T f,S s)
	constructs:function(f,s){
		this.first=f;
		this.second=s;
	},
	//> public T getFirst()
	getFirst:function(){
		return this.first;
	},
	//> public S getSecond()
	getSecond:function(){
		return this.second;
	}
})
.endType();
</source>

|}

=== Parameterized type ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
Vector<String> vector = new Vector();
Collection<Integer> collection = new ArrayList<Integer>();
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
//> Vector<String> vector
vector:null,
//> Collection<Integer> collection
collection:null,
//> private constructs()
constructs:function(){
	this.vector=new this.vjo.Vector();
	this.collection=new this.vjo.ArrayList();
},
</source>
|}

=== Sub-Typing ===

# Subtyping among primitive types
# Subtyping among class and interface
# Subtyping among array types

class type is defined using vjo .ctypas as

=== Variables ===

==== Class variable ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
static Integer classVariableInteger = new Integer(10);
static Float classVariableFloat;
static int classVariableInt;
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
.props({
	//> Integer classVariableInteger
	classVariableInteger:null,
	//> Float classVariableFloat
	classVariableFloat:null,
	//> int classVariableInt
	classVariableInt:0
})
.inits(function(){
	this.vjo.Pair.classVariableInteger=new this.vjo.Integer(10);
})
</source>
|}

==== Instance variable ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair{
	Integer classVariableInteger = new Integer(10);
	Float classVariableFloat;
	int classVariableInt;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Float")
.protos({
	//> Integer classVariableInteger
	classVariableInteger:null,
	//> Float classVariableFloat
	classVariableFloat:null,
	//> int classVariableInt
	classVariableInt:0,
	//> private constructs()
	constructs:function(){
	this.classVariableInteger=new this.vjo.Integer(10);
}
})
.endType();
</source>
|}

==== Array components – are unknown variables - partially implemented ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair{ 
	String[] stringArray = {new String(), new String()};
	Integer[] intArray; 
	//Pair[] pairArrayInit = {new Pair(), new Pair()};
	Pair(){
		intArray = new Integer[2];
		intArray[0] = new Integer(20);
		intArray[1] = 30;
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.StringFactory")
.protos({
	//> String[] stringArray
	stringArray:null,
	//> Integer[] intArray
	intArray:null,
	//> constructs()
	constructs:function(){
		this.stringArray=
                    [vjo.java.lang.StringFactory.build(),
                    vjo.java.lang.StringFactory.build()];
		this.intArray=new Array(2);
		this.intArray[0]=new this.vjo.Integer(20);
		this.intArray[1]=30;
	}
})
.endType();
</source>
|}

==== Method parameters ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair{ 
	public Pair myMethod(String s, Pair p){
		String paramString = s;
		Pair parameterPair = p;
		return parameterPair;
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.protos({
	//> public Pair myMethod(String s,Pair p)
	myMethod:function(s,p){
		var paramString=s;
		var parameterPair=p;
		return parameterPair;
	}
})
.endType();
</source>
|- style="vertical-align:top"
| colspan="2"  style="border:0.018cm solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.191cm;padding-right:0.191cm;"| Parameter s, and p exist only within the function
|}

==== Constructor parameters ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair{ 
	String s;
	Integer i;
	Pair(String s, Integer i){
		 this.s =s;
		 this.i=i;
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Integer")
.protos({
	//> String s
	s:null,
	//> Integer i
	i:null,
	//> constructs(String s,Integer i)
	constructs:function(s,i){
		this.s=s;
		this.i=i;
	}
})
.endType();
</source>
|}

==== Exception-handler parameter ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair {
	public Integer getNumber(){
		Integer i = 10;
		String s = "20.9";
	try{
		i = new Integer(s);
	}catch(NumberFormatException nfe){
		i = 0;
	}
	return i;
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.NumberFormatException")
.protos({
    //> public Integer getNumber()
        getNumber:function(){
            var i=10;
            var s="20.9";
            try {
                i=new this.vjo.Integer(s);
            }
            catch(nfe){
                i=0;
            }
            return i;
        }
})
.endType();
</source>
|- style="vertical-align:top"
| colspan="2"  style="border:1px solid #AAAAAA;padding: 0.2em;"| Note: variable nfe only exists inside catch block.
|}

==== Local variables ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair { 
    public void getNumber(){
        String s = new String();
        Integer i = 20;
        {
            String second = "2";
        }
    }
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.StringFactory")
.protos({
    //> public void getNumber()
    getNumber:function(){
        var s=vjo.java.lang.StringFactory.build();
        var i=20;
        {
        var second="2";
        }
    }
})
.endType();
</source>
|}

== Conversions and Promotions ==
Note1: widening conversions do not require casts 

Note2: narrowing conversions require explicit casts. 

==== Identity conversions – conversion to a same type, straight forward ====
==== Widening primitive conversions ====

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| js

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
byte b = 10;

short s = b;

int i = b;

long l = b;

float f = b;

double d = b;
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
var b=10;

var s=b;

var i=b;

var l=b;

var f=b;

var d=b;

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| # byte to short, int, long, float, or double
# short to int, long, float, or double
# char to int, long, float, or double
# int to long, float, or double
# long to float or double
# float to double

| style="border:1px solid #AAAAAA;padding: 0.2em;"| All conversions are straight forward in js

|}
==== Narrowing primitive conversions ====

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
long l = 100l;

byte b = (byte)l;

short s = (short)l;

char c = (char)l;

int i = (int)l;
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
var l=100;

var b=vjo.java.lang.Util.cast(l,'byte');

var s=vjo.java.lang.Util.cast(l,'short');

var c=l; // there is no casting to char

var i=vjo.java.lang.Util.cast(l,'int');

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 

# short to byte or char
# char to byte or short
# int to byte, short, or char
# long to byte, short, char, or int
# float to byte, short, char, int, or long
# double to byte, short, char, int, long, or float

| style="border:1px solid #AAAAAA;padding: 0.2em;"| Note: Uses vjo util class to cast

|}

==== Widening reference conversions ====


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
String stringObj = new String();
Object object = new Object();
object = stringObj;
</source>

| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
var stringObj=vjo.java.lang.StringFactory.build();
var object=new vjo.Object();
object=stringObj;
</source>
|- style="vertical-align:top"
| colspan="2"  style="border:1px solid #AAAAAA;padding: 0.2em;"| Note: Uses vjo reference implementation for all reference types

|}

==== Narrowing reference conversions ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
import java.util.List;
public class Pair{ 
    public List getNumber(Object object){
        List list = (List) object;
        String str = (String) object;
        Object myObj = str;
        return list;
    }
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.util.List")
.protos({
    //> public List getNumber(vjo.Object object)
    getNumber:function(object){
        var list=object;
        var str=object;
        var myObj=str;
        return list;
    }
})
.endType();
</source>
|- style="vertical-align:top"
| colspan="2"  style="border:1px solid #AAAAAA;padding: 0.2em;"| Note: 
|}

==== Boxing conversions ====

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
import java.util.List;
public class Pair{ 
    Byte ob = 0;
    Short os = 1;
    Integer oi = 10;
    Long ol = 20l;
    Character oc = 'C';
    Float of = 10.2f;
    Double od = 12.3;
    public void test(){
        Byte ob = 0;
         Short os = 1;
        Integer oi = 10;
        Long ol = 20l;
        Character oc = 'C'<nowiki>;</nowiki>
        Float of = 10.2f;
        Double od = 12.3;
    }
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Byte")
.needs("vjo.java.lang.Short")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Long")
.needs("vjo.java.lang.Character")
.needs("vjo.java.lang.Float")
.needs("vjo.java.lang.Double")
.protos({
	//> Byte ob
	ob:0,
	//> Short os
	os:1,
	//> Integer oi
	oi:10,
	//> Long ol
	ol:20,
	//> Character oc
	oc:'C',
	//> Float of
	of:10.2,
	//> Double od
	od:12.3,
	//> public void test()
	test:function(){
		var ob=0;
		var os=1;
		var oi=10;
		var ol=20;
		var oc='C';
		var of=10.2;
		var od=12.3;
	}
})
.endType();
</source>
|- style="vertical-align:top"
| colspan="2"  style="border:1px solid #AAAAAA;padding: 0.2em;"|  Type is declared in comment for jst translation
|}
 
# From type boolean to type Boolean
# From type byte to type Byte
# From type char to type Character
# From type short to type Short
# From type int to type Integer
# From type long to type Long
# From type float to type Float
# From type double to type Double

==== Unboxing conversions ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
public class Pair{ 
	Byte ob = 0;
	Short os = 1;
	Integer oi = 10;
	Long ol = 20l;
	Character oc = 'C';
	Float of = 10.2f;
	Double od = 12.3;

	byte b = ob;
	short s = os;
	int i = oi;
	long l = ol;
	char c = oc;
	float f = of;
	double d = od;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Byte")
.needs("vjo.java.lang.Short")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Long")
.needs("vjo.java.lang.Character")
.needs("vjo.java.lang.Float")
.needs("vjo.java.lang.Double")
.protos({
	//> Byte ob
	ob:null,
	//> Short os
	os:null,
	//> Integer oi
	oi:null,
	//> Long ol
	ol:null,
	//> Character oc
	oc:null,
	//> Float of
	of:null,
	//> Double od
	od:null,
	//> byte b
	b:0,
	//> short s
	s:0,
	//> int i
	i:0,
	//> long l
	l:0,
	//> char c
	c:null,
	//> float f
	f:0,
	//> double d
	d:0,
	//> private constructs()
	constructs:function(){
		this.ob=new this.vjo.Byte(0);
		this.os=new this.vjo.Short(1);
		this.oi=new this.vjo.Integer(10);
		this.ol=new this.vjo.Long(20);
		this.oc=new this.vjo.Character('C');
		this.of=new this.vjo.Float(10.2);
		this.od=new this.vjo.Double(12.3);
		this.b=this.ob.byteValue();
		this.s=this.os.shortValue();
		this.i=this.oi.intValue();
		this.l=this.ol.longValue();
		this.c=this.oc.charValue();
		this.f=this.of.floatValue();
		this.d=this.od.doubleValue(); 
	}
})
.endType();
</source>
|}
 
# From type Boolean to type boolean
# From type Byte to type byte
# From type Character to type char
# From type Short to type short
# From type Integer to type int
# From type Long to type long
# From type Float to type float
# From type Double to type double

==== Unchecked conversions – not supported ====
==== Capture conversions – not supported ====
==== String conversions - convert from any other type to String ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| colspan="2"  style="border:0.018cm solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.191cm;padding-right:0.191cm;"| String conversion applies only to the operands of the binary + operator when one
of the arguments is a String. 
When adding string to any object, java calls toString() and append to the string. 
This behavior is partially supported, ie., only with the user defined type with toString() 
implemented in it, other java objects are not supported.
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java 
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| js
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest.conversion;
import j2jtest.Out;
public class Conversion {
	public void method1(){
	AnotherClass obj = new AnotherClass();
	String simpleStr = " Simple String" + obj;
	Out.log("simpleStr = "+ simpleStr);
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.conversion.Conversion")
.needs("j2jtest.Out")
.protos({
	//> public void method1()
	method1:function(){
	var obj=new this.vjo.AnotherClass();
	var simpleStr=" Simple String"+obj;
	this.vjo.Out.log("simpleStr = "+simpleStr);
	}
})
.endType();
</source>
|}
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.javatojs.tests.operators;
import java.util.ArrayList;
import java.util.List;

public class Pair{ 
	List list = new ArrayList();
	String s<nowiki>= "a"+ list;
	public String getStringFromObject(List myList){
	String s = "Items in List "+ myList;
	return myList.toString();
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.util.List")
.needs("vjo.java.util.ArrayList")
.protos({
	//> List list
	list:null,
	//> String s
	s:null,
	//> private constructs()
	constructs:function(){
	this.list=new this.vjo.ArrayList();
	this.s="a"+this.list;
	},
	//> public String getStringFromObject(List myList)
	getStringFromObject:function(myList){
	var s="Items in List "+myList;
	return myList.toString();
	}
})
.endType();
</source>
|- style="vertical-align:top"
| colspan="2"  | style="border:1px solid #AAAAAA;padding: 0.2em;"| Note: use toString() method on reference object
|}

==== Value set conversions - not supported'' , Value set conversion ''is the process of mapping a floating-point value from one value set to another without changing its type. ====
==== Assignment conversion ====
==== Method invocation conversion ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
package com.ebay.dsf.javatojs.tests.operators;
import java.util.ArrayList;
import java.util.List;
public class Pair{ 
	public void testMethod(){
		Integer integer = new Integer(10);
		int intValue = 20;
		ArrayList list = null;
		identityConversion(integer);
		wideningPrimitiveConversion(intValue);
		wideningReferenceConversion(list);
		boxingConversion(intValue);
		unboxingConversion(intValue);
	}
	public void identityConversion(Integer i){
	}
	public void wideningPrimitiveConversion(long l){
	}
	public void wideningReferenceConversion( List list){
	}
	public void boxingConversion(Integer i){
	}
	public void unboxingConversion(int i){
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.util.ArrayList")
.needs("vjo.java.util.List")
.protos({
	//> public void testMethod()
	testMethod:function(){
	var integer=new this.vjo.Integer(10);
	var intValue=20;
	var list=null;
	this.identityConversion(integer);
	this.wideningPrimitiveConversion(intValue);
	this.wideningReferenceConversion(list);
	this.boxingConversion(new this.vjo.Integer(intValue));
	this.unboxingConversion(intValue);
	},
	//> public void identityConversion(Integer i)
	identityConversion:function(i){
	},
	//> public void wideningPrimitiveConversion(long l)
	wideningPrimitiveConversion:function(l){
	},
	//> public void wideningReferenceConversion(List list)
	wideningReferenceConversion:function(list){
	},
	//> public void boxingConversion(Integer i)
	boxingConversion:function(i){
	},
	//> public void unboxingConversion(int i)
	unboxingConversion:function(i){
	}
})
.endType();
</source>
|}

==== String conversion ====
==== Casting conversion ====
==== Numeric promotion ====

== Names ==

=== Declarations ===
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| declarations
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| package
| style="border:1px solid #AAAAAA;padding: 0.2em;"| package com.ebay.dsf.javatojs.tests.operators;
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
vjo.ctype
(“com.ebay.dsf.javatojs.tests.operators.Pair”)
|- style="vertical-align:top"
| rowspan="3" style="border:1px solid #AAAAAA;padding: 0.2em;"| import 
| colspan="2" style="border:1px solid #AAAAAA;padding: 0.2em;"| 
Only single type import is supported. 
Import on demand would be converted into necessary single type import.
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
import java.util.ArrayList;
import java.util.List;
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
.needs("vjo.java.lang.Integer")
.needs("vjo.java.util.ArrayList")
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| import java.util.*;
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
.needs("vjo.java.lang.Integer")
.needs("vjo.java.util.ArrayList")
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| class
| style="border:1px solid #AAAAAA;padding: 0.2em;"| public class Pair
| style="border:1px solid #AAAAAA;padding: 0.2em;"| vjo.ctype("com.ebay.dsf.javatojs.tests.operators.Pair")
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| interface
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package com.ebay.dsf.operators;
public interface PairInterface{ 
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.itype("com.ebay.dsf.operators.PairInterface")
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| member class
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 
	private int p = 0;
	class PairInner{
	int iCanAccessParentPrivateToo(){
		return p;
	}
	}
	public void testMethod(){

	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.protos({
	//> private int p
	p:0,
	PairInner:vjo.ctype()
	.protos({
	//> int iCanAccessParentPrivateToo()
	iCanAccessParentPrivateToo:function(){
		return this.vjo.outer.p;
	}
	})
	.endType(),
	//> public void testMethod()
	testMethod:function(){
	}
})
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| member interface
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 
	interface Colors {
	int ''WHITE'' = 0, ''BLACK'' = 1;
	int getColor();
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.protos({
	Colors:vjo.itype()
	.props({
	//> public int WHITE
	WHITE:0,
	//> public int BLACK
	BLACK:1
	})
	.protos({
	//> public int getColor()
	getColor:function(){
	}
	})
	.endType()
})
.endType();
</source>
|- style="vertical-align:top"
| rowspan="2" style="border:1px solid #AAAAAA;padding: 0.2em;"| enum constant
| colspan="2"  style="border:1px solid #AAAAAA;padding: 0.2em;"| TODO: ERROR: Enum, not completely implemented. See the missing function for enum SUNDAY
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public enum EnumTest {
	SUNDAY{
	int getIndex(){
	    return 0;
	}
	},
	MONDAY, 
	TUESDAY, 
	WEDNESDAY, 
	THURSDAY, 
	FRIDAY, 
	SATURDAY 
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.etype("j2jtest.EnumTest")
.values("SUNDAY, MONDAY, TUESDAY, 
WEDNESDAY, THURSDAY, FRIDAY, SATURDAY")
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| field in class and interface

method in class and interface

local variable in block

local variable in for statement

parameter of a method in class and interface

parameter of an exception handler

| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 
Integer fieldInClass = new Integer(10);
public void methodInClass
(String parameterOfaMethodInClass){
String sh = "shhhhhh!";{
Integer localVarInblock = 90; 
}
for( int i=0; i<20; i++){
String localVarInForStatement = ""+i;
try{
Integer k = new Integer(localVarInForStatement);
}catch (Exception parameterOfAnExceptionHandler){
}
}
}
interface Colors {
Integer ''fieldInInterface'' = 20;
int methodInInterface
(String parameterOfaMethodInInterface);
}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Exception")
.protos({
//> Integer fieldInClass
fieldInClass:null,
Colors:vjo.itype()
.props({
//> public Integer fieldInInterface
fieldInInterface:null
})
.protos({
//> public int methodInInterface
(String parameterOfaMethodInInterface)
methodInInterface:function
(parameterOfaMethodInInterface){
}
})
.inits(function(){
this.vjo.Colors.fieldInInterface=
new this.vjo.Integer(20);
})
.endType(),
//> private constructs()
constructs:function(){
this.fieldInClass=new this.vjo.Integer(10);
},
//> public void methodInClass
(String parameterOfaMethodInClass)
methodInClass:function(parameterOfaMethodInClass){
var sh="shhhhhh!"<nowiki>;</nowiki>
{
var localVarInblock=new this.vjo.Integer(90);
}
for (var <nowiki>i=0;i<20;i++)</nowiki>{
var localVarInForStatement=""+i;
try {
var k=new this.vjo.Integer
(localVarInForStatement);
}
catch(parameterOfAnExceptionHandler){
}
}
}
})
.endType();
</source>
|}

=== Names and Identifiers ===

=== Scope of a Declaration ===
==== Shadowing Declaration ====
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 
	int x = 20;
	void myMethod(){
		int x = 10;
		System.err.println("x ="+ x);
		System.err.println("thix.x="+ this.x);

	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.needs("vjo.java.lang.System")
.protos({
	//> int x
	x:20,
	//> void myMethod()
	myMethod:function(){
		var x=10;
		this.vjo.System.err.println("x = "+x);
		this.vjo.System.err.println("thix.x = "+this.x);
	}
})
.endType();
</source>
|- style="vertical-align:top"
| colspan="2"  style="border:1px solid #AAAAAA;padding: 0.2em;"|  Above shows shadowing of a field x by a local variable x . 
|}

==== Obscured Declarations ====

=== Members and Inheritance ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| js
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest.member;
import j2jtest.Out;
public class Derived extends Base{
	String instanceMember;
	static String staticMember;
	public void method1(){
	    String local = inheritedMemberVar;
	    local = inheritedStaticMemberVar;
	    local = instanceMember;
	    local = staticMember;
	    local = "";
	    inheritedMemberMethod();
	    inheritedStaticMemberMethod();
	    override();
	    super.override();
	    overload();
	    overload(local);
	}
	public void memberMethod(){
	    Out.log("Derived.memberMethod");
	}
	public static void memberStaticMethod(){
	    Out.log("Derived.memberStaticMethod");
	}
	public void override(){
	    Out.log("Derived.override");
	}
	public void overload(String s){
	    Out.log("Derived.overload(String)");
	}
	public void abstractMethod(){
	    Out.log("Derived.abstractMethod");
	}
	public void abstractMethod(String value){
	    Out.log("Derived.abstractMethod(String)");
	}
}

package j2jtest.member;
import j2jtest.Out;
public abstract class Base {
	String inheritedMemberVar;
	static String inheritedStaticMemberVar;

	public void inheritedMemberMethod(){
	    Out.log("Base.inheritedMemberMethod");
	}
	public void inheritedStaticMemberMethod(){
	    Out.log("Base.inheritedStaticMemberMethod");
	}
	public void override(){
	    Out.log("Base.override");
	}
	public void overload(){
	    Out.log("Base.overload");
	}
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.member.Derived")
.needs("j2jtest.Out")
.needs("j2jtest.member.Base")
.inherits("j2jtest.member.Base")
.props({
	//> String staticMember
	staticMember:null,
	//> public void memberStaticMethod()
	memberStaticMethod:function(){
	    this.vjo.Out.log("Derived.memberStaticMethod");
	}
})
.protos({
	//> String instanceMember
	instanceMember:null,
	//> public void method1()
	method1:function(){
	    var local=this.inheritedMemberVar;
	    local=this.vjo.Base.inheritedStaticMemberVar;
	    local=this.instanceMember;
	    local=this.vjo.Derived.staticMember;
	    local="";
	    this.inheritedMemberMethod();
	    this.inheritedStaticMemberMethod();
	    this.override();
	    this.base.override();
	    overload();
	    this.overload(local);
	},
	//> public void memberMethod()
	memberMethod:function(){
	    this.vjo.Out.log("Derived.memberMethod");
	},
	//> public void override()
	override:function(){
	    this.vjo.Out.log("Derived.override");
	},
	//> public void abstractMethod()
	//> public void abstractMethod(String value)
	abstractMethod:function(){
	    if(arguments.length===0){
	    	this.abstractMethod_0_0_Derived_ovld();
	    }else if(this.base && this.base.abstractMethod){
		this.base.abstractMethod.apply(this,arguments);
	    }else if(arguments.length===1){
		if(arguments[0] instanceof String || 
		typeof arguments[0]=="string"){
	            this.abstractMethod_1_0_Derived_ovld(arguments[0]);
		}else if(this.base && this.base.abstractMethod){
		    this.base.abstractMethod.apply(this,arguments);
		}
	    }else if(this.base && this.base.abstractMethod){
		this.base.abstractMethod.apply(this,arguments);
	    }
	},
	//> private void abstractMethod_0_0_Derived_ovld()
	abstractMethod_0_0_Derived_ovld:function(){
	    this.vjo.Out.log("Derived.abstractMethod");
	},
	//> private void 
	//abstractMethod_1_0_Derived_ovld(String value)
	abstractMethod_1_0_Derived_ovld:function(value){
	    this.vjo.Out.log("Derived.abstractMethod(String)");
	},
	//> public void overload(String s)
	overload:function(s){
	    if(arguments.length===1){
		if(arguments[0] instanceof String || 
		typeof arguments[0]=="string"){
		    this.overload_1_0_Derived_ovld(arguments[0]);
		}else if(this.base && this.base.overload){
		    this.base.overload.apply(this,arguments);
		}
	    }else if(this.base && this.base.overload){
		this.base.overload.apply(this,arguments);
	    }
	},
	//> private void overload_1_0_Derived_ovld(String s)
	overload_1_0_Derived_ovld:function(s){
	    this.vjo.Out.log("Derived.overload(String)");
	}
})
.endType();
</source>
|}

=== Access Control ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 
	int packageAccess;
	public int publicAccess;
	private int privateAccess;
	protected int protectedAccess;
	void packageMethod(){

	}
	public void publicMethod(){

	}
	private void privateMethod(){

	}
	protected void protectedMethod(){

	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.protos({
	//> int packageAccess
	packageAccess:0,
	//> public int publicAccess
	publicAccess:0,
	//> private int privateAccess
	privateAccess:0,
	//> protected int protectedAccess
	protectedAccess:0,
	//> void packageMethod()
	packageMethod:function(){

	},
	//> public void publicMethod()
	publicMethod:function(){

	},
	//> private void privateMethod()
	privateMethod:function(){

	},
	//> protected void protectedMethod()
	protectedMethod:function(){

	}
})
.endType();
</source>
|}

=== Fully Qualified Names and Canonical Names ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"


|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
package j2jtest;
public class Pair{ 
	java.lang.Integer packageAccess;
	java.util.List l = new java.util.ArrayList();
	java.util.Date utilDate = new java.util.Date();
	java.sql.Date sqlDate = 
               new java.sql.Date(utilDate.getTime());
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.util.List")
.needs("vjo.java.util.ArrayList")
.needs("java.util.Date")
.needs("java.sql.Date")
.protos({
	//> Integer packageAccess
	packageAccess:null,
	//> List l
	l:null,
	//> Date utilDate
	utilDate:null,
	//> Date sqlDate
	sqlDate:null,
	//> private constructs()
	constructs:function(){
		this.l=new this.vjo.ArrayList();
		this.utilDate=new java.util.Date();
		this.sqlDate=new java.sql.Date(this.utilDate.getTime());
	}
})
.endType();
</source>
|}

== Packages ==


=== Package Members ===

=== Compilation Units ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| colspan="2"  style="border:0.018cm solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.191cm;padding-right:0.191cm;"| No implicit imports (ex., java.lang package), imported only if it’s used. 

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 
	Integer i = 10;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.needs("vjo.java.lang.Integer")
.protos({
	//> Integer i
	i:null,
	//> private constructs()
	constructs:function(){
		this.i=new this.vjo.Integer(10);
	}
})
.endType();
</source>
|}

=== Package Declarations ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| colspan="2"  style="border:0.018cm solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.191cm;padding-right:0.191cm;"| There is no explicit package declaration, package name is added to type declaration (name space of type)

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 

}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
</source>
|}

=== Import ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| colspan="2"  style="border:0.018cm solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.191cm;padding-right:0.191cm;"| Does not support import on-demand, for ex., package.*;
All the compilation units needs to be imported separately .

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
import java.util.*; //
public class Pair{ 
    List list;
    HashMap map;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.needs("vjo.java.util.List")
.needs("vjo.java.util.HashMap")
.protos({
    //> List list
    list:null,
    //> HashMap map
    map:null
})
.endType();
</source>
|}

=== Top Level Type Declarations ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| colspan="2"  style="border:0.018cm solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.191cm;padding-right:0.191cm;"| All types should be imported explicitly even if the type belongs to the same package. For ex., from the below code, though Pair2 is defined in the same package of Pair, it requires import, 

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
package j2jtest;
import java.util.*;
public class Pair{ 
	List list;
	HashMap map;
	Pair2 pair2OnSamePackage;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.needs("vjo.java.util.List")
.needs("vjo.java.util.HashMap")
.needs("j2jtest.Pair2")
.protos({
	//> List list
	list:null,
	//> HashMap map
	map:null,
	//> Pair2 pair2OnSamePackage
	pair2OnSamePackage:null
})
.endType();
</source>
|}

== Classes ==

=== Class Declaration ===

==== Class Modifiers ====

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| 
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| class
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair{ 
	Integer i = 10;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.needs("vjo.java.lang.Integer")
.protos({
	//> Integer i
	i:null,
	//> private constructs()
	constructs:function(){
		this.i=new this.vjo.Integer(10);
	}
})
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| abstract class
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
package j2jtest;
public abstract class AbstractClassTest{ 

}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("j2jtest.AbstractClassTest")
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| final class
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public final class AbstractClassTest{ 

}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.AbstractClassTest")
.makeFinal()
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Sstrictfp class
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"|  Not supported

|}

==== Generic Classes and Type Parameters ====


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair<T>{
	T value;
	void set(T t){
		this.value = t;
	}
	T get(){
		return value;
	}
	Pair<String> testMethod(){
		Pair<String> pair = new Pair<String>();
		return pair;
	}
}
</source>

| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair")
.protos({
	//> T value
	value:null,
	//> void set(T t)
	set:function(t){
		this.value=t;
	},
	//> T get()
	get:function(){
		return this.value;
	}
})
.endType();

//> Pair<String> testMethod()
testMethod:function(){
	var pair=new this.vjo.Pair();
	return pair;
}
</source>
|}

==== Inner Classes and Enclosing Instances ====
# Nested
## static
## inner
### anonymous
### local

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| colspan="3"  style="border:0.018cm solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.191cm;padding-right:0.191cm;"| <center>Nested</center>

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Static
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class Pair2 {
	void anOuterMethod() {

	}
	public static class NestedStatic {
		void aNestedStaticMethod() {

		}
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
vjo.ctype("j2jtest.Pair2")
.props({
	NestedStatic://> public NestedStatic
	vjo.ctype()
	.protos({
		//> void aNestedStaticMethod()
		aNestedStaticMethod:function(){

		}
	})
	.endType()
})
.protos({
	//> void anOuterMethod()
	anOuterMethod:function(){

	}
})
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| inner –one level
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class OuterClass {
	int outerVar = 10;
	class InnerClass{
		void innerMethod(){
			Out.log("inner" +outerVar);
		}
	}
	static void testMethod(){
		OuterClass outerClass = 
		    new OuterClass();
		OuterClass.InnerClass innerClass = 
		    new OuterClass().new InnerClass();
		innerClass.innerMethod();
		innerClass = outerClass.new InnerClass();
		innerClass.innerMethod();
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.OuterClass")
.needs("j2jtest.Out")
.props({
	//> void testMethod()
	testMethod:function(){
		var outerClass=new this();
		var innerClass=
		    new (new this()).InnerClass();
		innerClass.innerMethod();
		innerClass=
		    new outerClass.InnerClass();
		innerClass.innerMethod();
	}
})
.protos({
	//> int outerVar
	outerVar:10,
	InnerClass://> InnerClass
	vjo.ctype()
	.protos({
		//> void innerMethod()
		innerMethod:function(){
		this.vjo.Out.log(
		    "Inside inner class"+
			this.vjo.outer.outerVar);
		}
	})
	.endType()
})
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| inner –two level
ERROR
inInClass, not getting created
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest;
public class OuterClass {
	int outerVar = 10;
	class InnerClass{
		class InnerInnerClass{
		void innerInnerMethod(String mssg){
			Out.log("InnerInner " +mssg);
		}
		}
		void innerMethod(String mssg){
			Out.log("Inner " +mssg);
		}
	}
	static void testMethod(){
		OuterClass.InnerClass innerClass = 
		new OuterClass().new InnerClass();
		
		OuterClass.InnerClass.InnerInnerClass 
		inInClass = 
		   innerClass.new InnerInnerClass(); 
		
		innerClass.innerMethod("mssg1");
		inInClass.innerInnerMethod("mssg2");
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.OuterClass")
.needs("j2jtest.Out")
.props({
	//> void testMethod()
	testMethod:function(){
		var innerClass=new (new this())
		.InnerClass();
		var inInClass;
		innerClass.innerMethod("mssg1");
		inInClass.innerInnerMethod("mssg2");
	}
})
.protos({
	//> int outerVar
	outerVar:10,
	InnerClass://> InnerClass
	vjo.ctype()
	.protos({
	InnerInnerClass://> InnerInnerClass
	vjo.ctype()
	.protos({
	//> void innerInnerMethod(String mssg)
	innerInnerMethod:function(mssg){
		this.vjo.Out.log("InnerInner "+mssg);
	}
	})
	.endType(),
	//> void innerMethod(String mssg)
	innerMethod:function(mssg){
		this.vjo.Out.log("Inner "+mssg);
	}
	})
	.endType()
})
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| anonymous
ERROR
Not getting created/initialized
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 

<source lang="javascript">
package j2jtest.innerclass;
import j2jtest.Out;
import java.util.ArrayList;
import java.util.List;

public class AnonymousInnerclass {
	List list = new ArrayList(3) {
		{
		 add("One"); add("Two"); add("Three");
		 }
	};
	public void testMethod(){
		for(Object value: list){
			Out.log("value="+value);
		}
	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype
("j2jtest.innerclass.AnonymousInnerclass")
.needs("vjo.java.util.List")
.needs("vjo.java.util.ArrayList")
.needs("j2jtest.Out")
.protos({
	//> List list
	list:null,
	//> private constructs()
	constructs:function(){
	this.list=
	vjo.make(this,vjo.java.util.ArrayList,3);
	},
	//> public void testMethod()
	testMethod:function(){
	this.vjo.Out.log("value=");
	for (var value,_$itr=this.list.iterator();
                      _$itr.hasNext();){
		value=_$itr.next();
		this.vjo.Out.log("value="+value);
	}
	}
})
.endType();
</source>
|}

==== Superclasses and Subclasses ====

Please refer Names. Members and Inheritance

==== Superinterfaces ====


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Js

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest.superinterface;
public interface BaseInterface{
	public void method1();
	public void method(int i);

	}
</source>

| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.itype("j2jtest.superinterface.BaseInterface")
.protos({
	//> public void method1()
	method1:function(){

	},
	//> public void method(int i)
	method:function(i){

	}
})
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.superinterface;
public class ImplClass implements BaseInterface{
	public void method1(){

	}
	public void method(int i){

	}
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.superinterface.ImplClass")
.needs("j2jtest.superinterface.BaseInterface")
.satisfies("j2jtest.superinterface.BaseInterface")
.protos({
	//> public void method1()
	method1:function(){

	},
	//> public void method(int i)
	method:function(i){

	}
})
.endType(); </source>

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.superinterface;
public interface SubInterface extends SuperInterface {

}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.itype("j2jtest.superinterface.SubInterface")
.needs("j2jtest.superinterface.SuperInterface")
.inherits("j2jtest.superinterface.SuperInterface")
.endType(); </source>

|}

==== Class Body and Member Declarations ====


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| js

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.classbodyandmember;
public class ClassBody {
	String field1;
	static int staticField;
	static{staticField=12;}
	{field1="field1Str";}
	
	interface classinterface{
		void m1();
	}
	class classclass{
		void m1(){}
	}
	void m1(){}
	ClassBody(){}
	ClassBody(Integer a){}
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.classbodyandmember.ClassBody")
.needs("vjo.java.lang.Integer")
.props({
	//> int staticField
	staticField:0
})
.protos({
	//> String field1
	field1:null,
	classinterface://> public classinterface
	vjo.itype()
	.protos({
		//> public void m1()
		m1:function(){
		}
	})
	.endType(),

	classclass://> classclass
	vjo.ctype()
	.protos({
		//> void m1()
		m1:function(){

		}
	})
	.endType(),

	//> constructs()
	//> constructs(Integer a)
	constructs:function(){
		{
			this.field1="field1Str";
		}
		if(arguments.length===0){
			this.constructs_0_0_ClassBody_ovld();
		}else if(arguments.length===1){
			this.constructs_1_0_ClassBody_ovld(arguments[0]);
		}
	},
	//> void m1()
	m1:function(){

	},
	//> private constructs_0_0_ClassBody_ovld()
	constructs_0_0_ClassBody_ovld:function(){

	},
	//> private constructs_1_0_ClassBody_ovld(Integer a)
	constructs_1_0_ClassBody_ovld:function(a){

	}
})
.inits(function(){
	{
		this.vjo.ClassBody.staticField=12;
	}
})
.endType(); </source>

|}

=== Class Members - see Class Body and Member Declarations ===

=== Field Declarations ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| 
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| access modifier
public, private, protected
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
public Integer I =10;
private Integer j =20;
protected Integer k=0;
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
.protos({
	//> public Integer i
	i:null,
	//> private Integer j
	j:null,
	//> protected Integer k
	k:null,
	//> EnumTest etest
	etest:null,
	//> private constructs()
	constructs:function(){
		this.i=new this.vjo.Integer(10);
		this.j=new this.vjo.Integer(20);
		this.k=new this.vjo.Integer(0);
	},
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| static fields
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
class TestClass {
	public final Integer i = 10;
	private final Integer j = 20;
	protected static final Integer k = 0;
} 
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.TestClass")
.props({
	//> public Integer i
	i:null,
	//> private Integer j
	j:null,
	//> protected Integer k
	k:null
})
.inits(function(){
	this.vjo.TestClass.i=new this.vjo.Integer(10);
	this.vjo.TestClass.j=new this.vjo.Integer(20);
	this.vjo.TestClass.k=new this.vjo.Integer(0);
})
.endType(); </source>

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| final fields
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
class TestClass {
	public static final Integer i = 10;
	private static final Integer j = 20;
	protected static final Integer k = 0;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.TestClass")
.props({
	//> final public Integer i
	i:null,
	//> final private Integer j
	j:null,
	//> final protected Integer k
	k:null
})
.inits(function(){
	this.vjo.TestClass.i=new this.vjo.Integer(10);
	this.vjo.TestClass.j=new this.vjo.Integer(20);
	this.vjo.TestClass.k=new this.vjo.Integer(0);
})
.endType(); </source>

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Transient – 
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
class TestClass {
	transient Integer i = 10;
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Not Supported

|}

=== Method Declarations ===


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| method modifiers
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| 
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| 

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| abstract,
static, final methods
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public abstract class Pair2{ 
	abstract void abstractMethod();
	static void staticMethod();
	public final void finalMethod(){

	}
	public native void nativeMethod();
	public synchronized void synchronizedMethod() {
	
	}
	strictfp void strictfpMethod(){

	}
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2") //< abstract
.props({
	//> void staticMethod()
	staticMethod:function(){

	}
})
.protos({
	//> abstract void abstractMethod()
	abstractMethod:function(){

	},
	//> final public void finalMethod()
	finalMethod:function(){

	},	
	//> public void nativeMethod()
	nativeMethod:function(){

	},
	//> public void synchronizedMethod()
	synchronizedMethod:function(){

	},
	//> void strictfpMethod()
	strictfpMethod:function(){

	}
})
.endType(); </source>


|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| synchronized native strictfp
are not supported
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Method throws not supported
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
public void method1() throws Exception {

}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
//> public void method1()
method1:function(){

}
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Overloading
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2{ 
	public void method1() {

	}
	public void method1(int i){

	}
	public void callMethod(){
		method1();
		method1();
	}
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.protos({
	//> public void method1()
	method1:function(){
		if(arguments.length===0){
			this.method1_0_0();
		}else if(arguments.length===1){
			this.method1_1_0(arguments[0]);
		}
	},
	//> public void method1_0_0()
	method1_0_0:function(){

	},
	//> public void method1_1_0(int i)
	method1_1_0:function(i){

	},
	//> public void callMethod()
	callMethod:function(){
		this.method1();
		this.method1();
	}
})

.endType(); </source>

|}
If a static field/method is accessed through instance object, it would be converted to use fully qualified class name to access.

=== Member Type Declarations ===


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2{ 
	abstract class Abstractclass{
	
	}
	interface MyInterface{

	}
	protected class ProtectedClass extends Abstractclass{

	}
	private class PrivateClass implements MyInterface{

	}
	static class StaticClass {

	}
	final class FinalClass{

	}
	PrivateClass pclass = new PrivateClass();
	ProtectedClass prClass = new ProtectedClass();
	StaticClass sClass = new StaticClass();
	Abstractclass aClass = new ProtectedClass();
	MyInterface mInterface = new PrivateClass();
	FinalClass fClass = new FinalClass();
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.props({
	StaticClass:vjo.ctype()
	.endType()
})
.protos({
	//> PrivateClass pclass
	pclass:null,
	//> ProtectedClass prClass
	prClass:null,
	//> StaticClass sClass
	sClass:null,
	//> Abstractclass aClass
	aClass:null,
	//> MyInterface mInterface
	mInterface:null,
	//> FinalClass fClass
	fClass:null,
	Abstractclass:vjo.ctype() //< abstract
	.endType(),
	MyInterface:vjo.itype()
	.endType(),
	ProtectedClass:vjo.ctype()
	.inherits("j2jtest.Pair2.Abstractclass")
	.endType(),
	PrivateClass:vjo.ctype()
	.satisfies("j2jtest.Pair2.MyInterface")
	.endType(),
	FinalClass:vjo.ctype()
	.makeFinal()
	.endType(),
	//> private constructs()
	constructs:function(){
		this.pclass=new PrivateClass();
		this.prClass=new ProtectedClass();
		this.sClass=new this.StaticClass();
		this.aClass=new ProtectedClass();
		this.mInterface=new PrivateClass();
		this.fClass=new FinalClass();
	}
})
.endType(); </source>

|}

=== Instance Initializers ===


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| style="vertical-align:top;border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2{ 
	Integer wrapperInteger = 10;
	Float wrapperFloat = 12.2f;
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Float")
.protos({
	//> Integer wrapperInteger
	wrapperInteger:null,
	//> Float wrapperFloat
	wrapperFloat:12.2,
	//> private constructs()
	constructs:function(){
		this.wrapperInteger=new this.vjo.Integer(10);
	}
})
.endType(); </source>

|}

=== Static Initializers ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
| style="vertical-align:top;border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2 {
	public static Integer i = new Integer(20);
	private static Float f = new Float(23);
	static Pair2 pair;
	static{
		pair = new Pair2();
	}
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Float")
.props({
//> public Integer i
i:null,
//> private Float f
f:null,
//> Pair2 pair
pair:null

})
.inits(function(){
	this.vjo.Pair2.i=new this.vjo.Integer(20);
	this.vjo.Pair2.f=new this.vjo.Float(23);
	{
		this.pair=new this();
	}
})
.endType(); </source>

|}

=== Constructor Declarations - see Class Body and Member Declarations ===
=== Enums ===

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| js

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.enum1;
public enum EnumTest {
	SUNDAY{
		int getIndex(){
			return 0;
		}
	},
	MONDAY, 
	TUESDAY, 
	WEDNESDAY, 
	THURSDAY, 
	FRIDAY, 
	SATURDAY 
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.etype("j2jtest.enum1.EnumTest")
.values("SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY")
.inits(function(){
	this.SUNDAY.getIndex=function(){
		return 0;
	};
})
.endType(); </source>

|}

Initialization

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2 {
	public final int N = 10;
	private int[] x = new int[N];
	{
		for (int i = 0; i < N; i++)
			x[i] = i;
	}
	public static int L = 5;
	private static int[] y=new int[L];;
	static {
		for (int i = 0; i < L; i++)
			y[i] = i;
	}
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.props({
	//> final public int L
	L:5,
	//> private int[] y
	y:null
})
.protos({
	//> final public int N
	N:10,
	//> private int[] x
	x:null,
	//> private constructs()
	constructs:function(){
		this.x=new Array(this.N);
		{
			for (var i=0;i<this.N;i++){
				this.x[i]=i;
			}
		}
	}
})
.inits(function(){
	this.vjo.Pair2.y=new Array(this.L);
	{
		for (var i=0;i<this.L;i++){
			this.y[i]=i;
		}
	}
})
.endType(); </source>

|}

== Interfaces ==
Interface Declarations

Instance Members

Field (Constant) Declarations

Abstract Method Declarations

Member Type Declarations


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| js

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="java">
package j2jtest.interfaces;
public interface SuperInterface {
	String memberStr="";
	public int var1=1;
	public static int var2=2;
	public static final int var3 = 3;
	String var4 = ""+var3;
	void m1();
	void m1(int i);
	public void m2();
	abstract void m3();
	public abstract void m4();
}
</source>

| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.itype("j2jtest.interfaces.SuperInterface")
.props({
	//> public String memberStr
	memberStr:"",
	//> public int var1
	var1:1,
	//> public int var2
	var2:2,
	//> final public int var3
	var3:3,
	//> public String var4
	var4:null
})
.protos({
	//> void m1()
	//> public void m1(int i)
	m1:function(){
		if(arguments.length===0){
			this.m1_0_0_SuperInterface_ovld();
		}else if(arguments.length===1){
			this.m1_1_0_SuperInterface_ovld(arguments[0]);
		}
	},
	//> private void m1_0_0_SuperInterface_ovld()
	m1_0_0_SuperInterface_ovld:function(){

	},
	//> private void m1_1_0_SuperInterface_ovld(int i)
	m1_1_0_SuperInterface_ovld:function(i){

	},
	//> public void m2()
	m2:function(){

	},
	//> public abstract void m3()
	m3:function(){

	},
	//> public abstract void m4()
	m4:function(){

	}
})
.inits(function(){
	this.vjo.SuperInterface.var4=""+this.var3;
})
.endType();
</source>
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
package j2jtest.interfaces;
public interface SubInterface extends SuperInterface{
	public static int memberInt=20;
	public static String var3 = ""+var2;
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.itype("j2jtest.interfaces.SubInterface")
.needs("j2jtest.interfaces.SuperInterface")
.inherits("j2jtest.interfaces.SuperInterface")
.props({
	//> public int memberInt
	memberInt:20,
	//> public String var3
	var3:null
})
.inits(function(){
	this.vjo.SubInterface.var3=""+this.vjo.SuperInterface.var2;
})
.endType();
</source>


|}

== Arrays ==

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Java
! style="background-color:#F2F2F2;text-align:center;border:1px solid #AAAAAA;padding:0.2em;"| Vjo

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
long avg = 10;
long[] la = {1+avg,2,3}; 
int[][] twoDimArray = {{1,2,3}, {4,5,6}};
String[] sa = { "a", "b", "c"};
String[] sa2 = new String[2];
Employee[] sa3 = new Employee[2];
boolean boolArr1[] 
	= new boolean[]{true};
boolean boolArr2[][] 
	= new boolean[][]{{false}};
boolean boolArr11[] 
	= new boolean[twoDimArray[0][0]];
boolean boolArr12[][] 
	= new boolean[twoDimArray[0][0]] [twoDimArray[0][1]];
</source>


| style="border:1px solid #AAAAAA;padding: 0.2em;"|
<source lang="javascript">
var avg=10;
var la=[1+avg,2,3];
var twoDimArray=[[1,2,3],[4,5,6]];
var sa=["a","b","c"];
var sa2=new Array(2);
var sa3=new Array(2);
var boolArr1=[true];
var boolArr2=[[false]];
var boolArr11=new Array(twoDimArray[0][0]);
var boolArr12=new Array;
</source>
|}

== ERORS/TO-DO List ==

1. FIXED. Field initialization should maintain the order. From the below example, initialization order is not maintained. myInt should be initialized before i.

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java">
package j2jtest;
public class Pair2{ 
    Integer myInt = 10;
    int i = myInt;

}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
vjo.ctype("j2jtest.Pair2")
.needs("vjo.java.lang.Integer")
.protos({
	//> Integer myInt
	myInt:null,
	//> int i
	i:0,
	//> constructs()
	constructs:function(){
	this.i=this.myInt.intValue();
	this.myInt=new this.vjo.Integer(10);
	}
})
.endType();
</source>
|}

2. DOCUMENTED. Overload with primitive and wrapper argument is not correctly transferred in js dispatcher function. From the below example, overLoad(Integer i) would be called regardless of parameter.


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2{ 
    void overLoad(int i){
	    System.out.println("called with primitive int");
    }
    void overLoad(Integer i){
        System.out.println("called with wrapper int");
    }
    void callOverLoad(){
        overLoad(10);
        overLoad(new Integer(12));
    }
}
</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.System")
.protos({
    //> void overLoad()
    overLoad:function(){
        if(arguments.length===1){
            if(arguments[0] instanceof vjo.java.lang.Integer){
                this.overLoad_1_0(arguments[0].intValue());
            }else if(arguments[0] instanceof vjo.java.lang.Integer){
                this.overLoad_1_1(arguments[0]);
            }
        }
    },
    //> void overLoad_1_0(int i)
    overLoad_1_0:function(i){
        this.vjo.System.out.println("called with primitive int");
    },

    //> void overLoad_1_1(Integer i)
    overLoad_1_1:function(i){
        this.vjo.System.out.println("called with wrapper int");
    },
    //> void callOverLoad()
    callOverLoad:function(){
        this.overLoad(new this.vjo.Integer(10));
        this.overLoad(new this.vjo.Integer(12));
    }
})
.endType();</source>
|}

3. FIXED. Instance initialization is not consistence. From the below example, float1 and double1 are not initialized in the init constructor.


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2{ 
    Integer integer2 = 20;
    Integer integer1 = new Integer(10);
    Float float1 = 12.2f;
    Float float2 = new Float(12);
    Double double1 = 30.5;
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Float")
.needs("vjo.java.lang.Double")
.protos({
    //> Integer integer2
    integer2:null,
    //> Integer integer1
    integer1:null,
    //> Float float1
    float1:12.2,
    //> Float float2
    float2:null,
    //> Double double1
    double1:30.5,
    //> private constructs()
    constructs:function(){
        this.integer1=new this.vjo.Integer(10);
        this.float2=new this.vjo.Float(12);
        this.integer2=new this.vjo.Integer(20);
    }
})
.endType();
</source>
|}

4. NOT APPLICABLE: Don’t give function name starts with “constructs” ie., constructs_0_0. if you have then you’ll see unexpected result as shown below


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair2{ 
    Integer integer1=12;
    Float f = 23.4f;
    Pair2(){
        System.out.println("No arg constructor");
        constructs_0_0();
    }
    Pair2(Integer initValue){
        System.out.println("One arg constructor");
    }
    void constructs_0_0(){
        System.out.println(" this is not a constructor");
    }
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">
vjo.ctype("j2jtest.Pair2")
.needs("vjo.java.lang.Integer")
.needs("vjo.java.lang.Float")
.needs("vjo.java.lang.System")
.protos({
    //> Integer integer1
    integer1:null,
    //> Float f
    f:23.4,
    //> constructs()
    constructs:function(){
        this.integer1=new this.vjo.Integer(12);
        if(arguments.length===0){
            if(arguments.length==0){
                this.constructs_0_0_0_0();
            }else if(arguments.length==0){
                this.constructs_0_0_0_0();
            }
        }else if(arguments.length===1){
            this.constructs_1_0(arguments[0]);
        }
    },

    //> constructs_1_0(Integer initValue)
    constructs_1_0:function(initValue){
        this.vjo.System.out.println("One arg constructor");
    },
    //> constructs()
    constructs:function(){
        this.integer1=new this.vjo.Integer(12);
        if(arguments.length===0){
            if(arguments.length==0){
                this.constructs_0_0_0_0();
            }else if(arguments.length==0){
                this.constructs_0_0_0_0();
            }
        }else if(arguments.length===1){
            this.constructs_1_0(arguments[0]);
        }else if(arguments.length===0){
            if(arguments.length==0){
                this.constructs_0_0_0_0();
            }else if(arguments.length==0){
                this.constructs_0_0_0_0();
            }
        }else if(arguments.length===1){
            this.constructs_1_0(arguments[0]);
        }
    },

    //> constructs_0_0_0_0()
    constructs_0_0_0_0:function(){
        this.vjo.System.out.println("No arg constructor");
        constructs_0_0();
    },

    //> void constructs_0_0_0_1()
    constructs_0_0_0_1:function(){
        this.vjo.System.out.println(" this is not a constructor");
    }
})
.endType();
</source>
|}

5. Need to have reserved/keyword that cannot be used while writing java that would be converted into js. For instance, use of base as method name in base class would cause calling wrong method/confusion


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest;
public class Pair{
    Integer i =10;
	Pair(Integer intValue){

	}
	void base(Integer i){
		System.out.println("Base method");
	}
}

package j2jtest;
public class Pair2 extends Pair{ 
	Pair2(){
		super(10);
	}
	Pair2(Integer intValue){
		super(intValue);
		base(intValue);
	}
}
</source>

| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.Pair2")
.needs("j2jtest.Pair")
.needs("vjo.java.lang.Integer")
.inherits("j2jtest.Pair")
.protos({
	//> constructs()
	constructs:function(){
		if(arguments.length===0){
			this.constructs_0_0();
		}else if(arguments.length===1){
			this.constructs_1_0(arguments[0]);
		}
	},

	//> constructs_0_0()
	constructs_0_0:function(){
		this.base(10);
	},

	//> constructs_1_0(Integer intValue)
	constructs_1_0:function(intValue){
		this.base(intValue);
		this.base(intValue);
	}
})

.endType();
</source>
|}

6. DOCUMENTED Don’t use class name, function name or package name for variables. It woks in java but not in javascript. For ex., below code display “test” in java but java script it display the whole java script object


{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"
|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
class MyClass {
	String MyClass = "test";
	public void method1(){
		System.out.println(MyClass);
	}
}</source>
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript"> 
vjo.ctype("j2jtest.abstract1.MyClass")
.protos({
	//> String MyClass
	MyClass:"test",
	//> public void method1()
	method1:function(){
		this.vjo.System.out.println(this.vjo.MyClass);
	}
})
.endType(); </source>

|}


7. FIXED , Inner classes/second level inner classes are not getting created correctly

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"

|- style="vertical-align:top"
|  style="border:1px solid #AAAAAA;padding: 0.2em;"|

<source lang="java">
package j2jtest;
public class OuterClass {
	int outerVar = 10;
	class InnerClass{
		class InnerInnerClass{
			void innerInnerMethod(String mssg){
				Out.log("InnerInner " +mssg);
			}
		}
		void innerMethod(String mssg){
			Out.log("Inner " +mssg);
		}
	}
	static void testMethod(){
		OuterClass.InnerClass innerClass = 
		new OuterClass().new InnerClass();
		
		OuterClass.InnerClass.InnerInnerClass inInClass = 
		innerClass.new InnerInnerClass(); 
		
		innerClass.innerMethod("mssg1");
		inInClass.innerInnerMethod("mssg2");
	}
}</source>
|  style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">
vjo.ctype("j2jtest.OuterClass")
.needs("j2jtest.Out")
.props({
	//> void testMethod()
	testMethod:function(){
		var innerClass=new (new this())
		.InnerClass();
		
		var inInClass;
		innerClass.innerMethod("mssg1");
		inInClass.innerInnerMethod("mssg2");
	}
})
.protos({
	//> int outerVar
	outerVar:10,
	InnerClass://> InnerClass
	vjo.ctype()
	.protos({
		InnerInnerClass://> InnerInnerClass
		vjo.ctype()
		.protos({
		//> void innerInnerMethod(String mssg)
		innerInnerMethod:function(mssg){
		    this.vjo.Out.log("InnerInner "+mssg);
		}
		})
		.endType(),
		//> void innerMethod(String mssg)
		innerMethod:function(mssg){
			this.vjo.Out.log("Inner "+mssg);
		}
	})
	.endType()
})
.endType(); </source>

|}

8. DOCUMENTED. Inner class initialization is not translated correctly. 

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"


|- style="vertical-align:top"
|  style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.innerclass;
import j2jtest.Out;
import java.util.ArrayList;
import java.util.List;

public class AnonymousInnerclass {
	List list = new ArrayList(3) {
	{add("One"); add("Two"); add("Three");}
	};

	public void testMethod(){
		for(Object value: list){
			Out.log("value="+value);
		}
	}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.innerclass.AnonymousInnerclass")
.needs("vjo.java.util.List")
.needs("vjo.java.util.ArrayList")
.needs("j2jtest.Out")
.protos({
	//> List list
	list:null,
	//> private constructs()
	constructs:function(){
		this.list=
		vjo.make(this,vjo.java.util.ArrayList,3);
	},
	//> public void testMethod()
	testMethod:function(){
		this.vjo.Out.log("value=");
		for (var value,_$itr=
			this.list.iterator();_$itr.hasNext();){
			value=_$itr.next();
			this.vjo.Out.log("value="+value);
		}
	}
})
.endType(); </source>

|}

9. FIXED Local inner class
Class Out not imported and create

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"


|- style="vertical-align:top"
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java">
package j2jtest.innerclass;
import j2jtest.Out;
import java.util.ArrayList;
public class LocalInnerclass {
	public void testMethod() {
		//Out.log("asasas");
		 class Happy { 
			public void hi() {
			ArrayList list = new ArrayList();
			Out o = new Out();
			o.log("Hi");
			double d = Math.PI;
			} 
		}
		Happy h = new Happy();
		h.hi();
	}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.innerclass.LocalInnerclass")
.needs("vjo.java.util.ArrayList")
.needs("vjo.java.lang.Math")
.protos({
	//> public void testMethod()
	testMethod:function(){
		//> Happy
		vjo.ctype("Happy")
		.protos({
			//> public void hi()
			hi:function(){
			var list=new this.vjo.ArrayList();
			var o;
			o.log("Hi");
			var d=this.vjo.Math.PI;
			}
		})
		.endType();
		var h=new Happy();
		h.hi();
	}
})
.endType(); </source>

|}

10. FIXED method overload with super and base class as parameter

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"

|- style="vertical-align:top"
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.constructor;
import j2jtest.Out;
public class MyClass extends MyClassBase{
	public void testMethod(MyClassBase base){
	Out.log("MyClass(MyClassBase)");
}
public void testMethod(MyClass myClass){
	Out.log("MyClass(MyClass)");
}
public void testMethod(){
	MyClass myClass = new MyClass();
	testMethod(myClass);
}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.constructor.MyClass")
.needs("j2jtest.constructor.MyClassBase")
.needs("j2jtest.Out")
.inherits("j2jtest.constructor.MyClassBase")
.protos({
	//> public void testMethod()
	testMethod:function(){
		if(arguments.length===1){
			if(arguments[0] instanceof 
			  j2jtest.constructor.MyClassBase){
				this.testMethod_1_0(arguments[0]);
			}else if(arguments[0] instanceof 
			        j2jtest.constructor.MyClass){
				this.testMethod_1_1(arguments[0]);
			}
		}else if(arguments.length===0){
			this.testMethod_0_0();
		}
	},
	//> public void testMethod_1_0(MyClassBase base)
	testMethod_1_0:function(base){
		this.vjo.Out.log("MyClass(MyClassBase)");
	},
	//> public void testMethod_1_1(MyClass myClass)
	testMethod_1_1:function(myClass){
		this.vjo.Out.log("MyClass(MyClass)");
	},
	//> public void testMethod_0_0()
	testMethod_0_0:function(){
		var myClass=new this.vjo.MyClass();
		this.testMethod(myClass);
	}
})
.endType(); </source>
|}

11. ERROR Default constructor. Default constructor is not getting created
{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"


|- style="vertical-align:top"
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java">
package j2jtest.constructor;
public class MyClass 
        extends Base{
}</source>
| colspan="2" style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.constructor.MyClass")
.needs("j2jtest.
   constructor.Base")
.inherits("j2jtest.
   constructor.Base")
.endType(); </source>

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| Generic object is not translated correctly if two typed parameters are same type
FIXED
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="java">
// translate correctly
public static GenericClass<String,Integer>
                        testMethod(){
GenericClass<String,Integer> 
object2 = 
    new GenericClass<String, Integer>
	    ("String one",20);
Out.log(object2.one);
return object2;
}

GenericClass<String, String> testMethod1(){
GenericClass<String,String> object2 = 
    new GenericClass<String, String>("ss","ss");
return object2;
}
</source>

|   style="border:1px solid #AAAAAA;padding: 0.2em;"| 
<source lang="javascript">
//> public GenericClass<String,Integer> 
                            testMethod()
testMethod:function(){
var object2=new this("String one",20);
this.vjo.Out.log(object2.one);
return object2;
}

//> GenericClass<String> testMethod1()
testMethod1:function(){
var object2=new 
    this.vjo.GenericClass("ss","ss");
return object2;
},
</source>
|}

12. DOCUMENTED Super keyword not translated correctly

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"

|- style="vertical-align:top"
| style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.inheritance;
import j2jtest.Out;
public class Derived extends Base {
	int i=20;
	public void method1(){
		Out.log(" i = "+super.i);
	}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.inheritance.Derived")
.needs("j2jtest.Out")
.needs("j2jtest.inheritance.Base")
.inherits("j2jtest.inheritance.Base")
.props({
	//> public void touch()
	touch:function(){
	}
})
.protos({
	//> int i
	i:20,
	//> public void method1()
	method1:function(){
		this.vjo.Out.log(" i = "+this.i);
	}
})
.endType(); </source>

|}

13. DOCUMENTED Cannt have variable name as class name

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"


|- style="vertical-align:top"
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.conversion;
import j2jtest.Out;
public class Conversion {
	String Conversion = "Conversion string";
	String str = "str";
	public static void touch(){
	}
	public void method1(){
		Out.log("Conversion = "+ Conversion);
		Out.log("str = "+ str);
	}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.conversion.Conversion")
.needs("j2jtest.Out")
.props({
	//> public void touch()
	touch:function(){
	}
})
.protos({
	//> String Conversion
	Conversion:"Conversion string",
	//> String str
	str:"str",
	//> public void method1()
	method1:function(){
		this.vjo.Out.log("Conversion = "+this.vjo.Conversion);
		this.vjo.Out.log("str = "+this.str);
	}
})
.endType(); </source>
|}

14. FIXED Calling overload function from base class is not getting translated. Keyword this is missing 

Eg.,

overload();

should be

this. overload();

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"

|- style="vertical-align:top"
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.member;
import j2jtest.Out;
public class Derived extends Base{
	public void method1(){
		overload();
		overload("asasas");
		//overload(local);
	}
	public void override(){
		Out.log("Derived.override");
	}
	public void overload(String s){
		Out.log("Derived.overload(String)");
	}
}

package j2jtest.member;
import j2jtest.Out;
public class Base {
	public void override(){
		Out.log("Base.override");
	}
	public void overload(){
		Out.log("Base.overload");
	}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.member.Derived")
.needs("j2jtest.Out")
.needs("j2jtest.member.Base")
.inherits("j2jtest.member.Base")
.protos({
	//> public void method1()
	method1:function(){
		overload();
		this.overload("asasas");
	},
	//> public void override()
	override:function(){
		this.vjo.Out.log("Derived.override");
	},
	//> public void overload(String s)
	overload:function(s){
		if(arguments.length===1){
			if(arguments[0] instanceof String 
			|| typeof arguments[0]=="string"){
			this.overload_1_0_Derived_ovld(arguments[0]);
			}else if(this.base && this.base.overload){
				this.base.overload.apply(this,arguments);
			}
		}else if(this.base && this.base.overload){
			this.base.overload.apply(this,arguments);
		}
	},
	//> private void overload_1_0_Derived_ovld(String s)
	overload_1_0_Derived_ovld:function(s){
		this.vjo.Out.log("Derived.overload(String)");
	}
})
.endType(); </source>


|}

15. DOCUMENTED. Calling overloaded method with null is not handled correctly. 

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"

|- style="vertical-align:top"
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.member;
import j2jtest.Out;
public class Overload {
	public void method1(){
		String notWorking = null;
		//overload();
		overload("working");
		overload(notWorking);	
	}
	public void overload(){
		Out.log("Overload.overload()");
	}
	public void overload(String s){
		Out.log("Overload.overload(String)");
	}
	public void overload(Object s){
		Out.log("Overload.overload(Object)");
	}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.member.Overload")
.needs("j2jtest.Out")
.protos({
	//> public void method1()
	method1:function(){
		var notWorking=null;
		this.overload("working");
		this.overload(notWorking);
	},
	//> public void overload()
	//> public void overload(String s)
	//> public void overload(vjo.Object s)
	overload:function(){
		if(arguments.length===0){
			this.overload_0_0_Overload_ovld();
		}else if(arguments.length===1){
		  if(arguments[0] instanceof String 
		  || typeof arguments[0]=="string"){
		    this.overload_1_0_Overload_ovld(arguments[0]);
		  }else if(arguments[0] instanceof vjo.Object){
			this.overload_1_1_Overload_ovld(arguments[0]);
		  }
		}
	},
	//> private void overload_0_0_Overload_ovld()
	overload_0_0_Overload_ovld:function(){
		this.vjo.Out.log("Overload.overload()");
	},
	//> private void overload_1_0_Overload_ovld(String s)
	overload_1_0_Overload_ovld:function(s){
		this.vjo.Out.log("Overload.overload(String)");
	},
	//> private void overload_1_1_Overload_ovld(vjo.Object s)
	overload_1_1_Overload_ovld:function(s){
		this.vjo.Out.log("Overload.overload(Object)");
	}
})
.endType(); </source>
|}

16. Abstract method is not getting called correctly. From the example., callAbstractMethod() should call method in implementing class instead it calls from the abstract class method

{| style="background-color:#F9F9F9;border:1px solid #AAAAAA;border-collapse:collapse;color:black; margin:1em 0;"

|- style="vertical-align:top"
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="java"> 
package j2jtest.abstract1;
import j2jtest.Out;
public class Derived extends Base{
	public void method1(){
	callAbstractMethod();
	}
	public void abstractMethod(){
	Out.log("Derived.abstractMethod");
	}
	public void abstractMethod(String value){
	Out.log("Derived.abstractMethod(String)");
	}
}

package j2jtest.abstract1;
import j2jtest.Out;
public class Base {
	public String toString(){
	return " Hey i am Basie";
	}
	public void callAbstractMethod(){
	Out.log("Base.callAbstractMethod");
	abstractMethod("StrValue");
	}
	public void abstractMethod(){
	Out.log("Base.abstractMethod");
	}
	public void abstractMethod(String value){
	Out.log("Base.abstractMethod(String)");
	}
}</source>
|   style="border:1px solid #AAAAAA;padding: 0.2em;"| <source lang="javascript">  
vjo.ctype("j2jtest.abstract1.Derived")
.needs("j2jtest.Out")
.needs("j2jtest.abstract1.Base")
.inherits("j2jtest.abstract1.Base")
.protos({
	//> public void method1()
	method1:function(){
		this.callAbstractMethod();
	},
	//> public void abstractMethod()
	//> public void abstractMethod(String value)
	abstractMethod:function(){
		if(arguments.length===0){
			this.abstractMethod_0_0_Derived_ovld();
		}else if(this.base && this.base.abstractMethod){
			this.base.abstractMethod.apply(this,arguments);
		}else if(arguments.length===1){
			if(arguments[0] instanceof String 
			|| typeof arguments[0]=="string"){
			this.abstractMethod_1_0_Derived_ovld(arguments[0]);
			}else if(this.base && this.base.abstractMethod){
			this.base.abstractMethod.apply(this,arguments);
			}
		}else if(this.base && this.base.abstractMethod){
			this.base.abstractMethod.apply(this,arguments);
		}
	},
	//> private void abstractMethod_0_0_Derived_ovld()
	abstractMethod_0_0_Derived_ovld:function(){
		this.vjo.Out.log("Derived.abstractMethod");
	},
	//> private void abstractMethod_1_0_Derived_ovld(String value)
	abstractMethod_1_0_Derived_ovld:function(value){
		this.vjo.Out.log("Derived.abstractMethod(String)");
	}
})
.endType(); </source>



|}
Type Variables

A type variable (§4.4) is an unqualified identifier. Type variables are introduced

by generic class declarations (§8.1.2) generic interface declarations (§9.1.2)

generic method declarations (§8.4.4) and by generic constructor declarations

Things to Remember/TODO

1 Overloaded method and null parameter

Will get unexpected behaviour if overloaded method is called with null object. In java script, variable type is determined based on the value it has. If the variable has null value then ther is no way to determine the type value. 

When passing result of an expression to overloaded method, make sure it’s not null.

2 Variable name as Class, Pakcage or function name

Do not overload variable name with Class, Pakcage or function name. In java it works fine, when it comes to java script, it evaluates as class or function.

3 Array components

Array components with custom object creation is not supported. For ex.,
<source lang="javascript">
Pair[] pairArrayWithInit = {new Pair(), new Pair()};</source>

4 Inner class/ initialization. 

Initializing object like shown below is not supported

<source lang="java">
List list = new ArrayList(3) {
 { add("One"); add("Two"); add("Three");}
};
</source>

5 Overload method with primitive and wrapper class

Overloading functions/constructor with primitive and wrapper class are not supported. For ex, below function method1 is overloaded using primitive type int and Integer. This type of overload is not supported.

<source lang="java">
public void method1(int intValue){

}
public void method1(Integer intValue){

}
</source>

6 Class loading and static initializer

In java a class is loaded only if it’s used or referenced and all staic fields/blocks will get executed only at that time of class loading.

In VJO there is no such thing called class loading. So all the reference and embedded class’s static variables/blocks are initialized along with the main class. This may cause unexpected bahaviour for ex.,

<source lang="java">
package j2jtest.todo;
import j2jtest.Out;
public class StaticInit {
    static int intValue = 10;
    public void display(){
        Out.log("intValue="+intValue);
        StaticInner staticInner = new StaticInner();
        Out.log("intValue="+intValue);
    }
    static class StaticInner{
        static{
            intValue = 20;
        }
    }
}
</source>

When running the above java class produces the result

intValue=10
intValue=20

but translated js file would result

intValue=20
intValue=20

as all static blocks run when the main class loads.


7 Overload method with super and derived class

When methods are overloaded based on super and derived class, java checks the variable type and calls the corresponding method with that type. In VJO, it doesn’t check the variable type, it checks the object type and call the corresponding method. For ex.,

<source lang="java">
package j2jtest.methodoverload;
import j2jtest.Out;
public class MyClass extends MyClassBase{
    public void testMethod(MyClassBase base){
        Out.log("testMethod(MyClassBase)");
    }
    public void testMethod(MyClass myClass){
        Out.log("testMethod(MyClass)");
    }
    public void testMethod(){
        MyClass myClass = new MyClass();
        MyClassBase myBaseClass = new MyClass();
        testMethod(myClass);
        testMethod(myBaseClass);
    }
}
</source>
Result from Java

testMethod(MyClass)

testMethod(MyClassBase)

Result from Vjo

testMethod(MyClass)

testMethod(MyClass)


8 Same variable names in super and derived class

Java maintains separate memory space for super and derived class so when variable is declared with same name in super and derived, both can have dirrerent value. VJO donesnt maintain separate memory space for super and derived, vjo shares one memory area for all variables (super and derived). So if a variable is declared with the same name in super and derived, only derived class variable would be available and would be refered as this.variablename. For ex.,

<source lang="java">
package j2jtest.inheritance;
import j2jtest.Out;
public class Derived extends Base {
    int i = 20;
    public void method1(){
        Out.log(" i = "+super.i);
    }
}
package j2jtest.inheritance;
public class Base {
    int i = 10;
}
</source>
Would be represented as

<source lang="javascript">
vjo.ctype('j2jtest.inheritance.Derived') //< public
.needs('j2jtest.Out')
.inherits('j2jtest.inheritance.Base')
.protos({
    i:20, //< int
    //> public void method1()
    method1:function(){
        this.vjo.Out.log(" i = "+this.i);
    }
})
.endType();
</source>
Java output

i = 10

JS output

i = 20


9 Avoid Circular references. For ex.,
<source lang="java">
public class Conversion {
    Conversion str = new Conversion();
}
</source>

10 Sub classes are not supported.
<source lang="java">
package j2jtest.member;
import j2jtest.Out;
public class MemberClass {
    void m1(){
        Out.log("in MemberClass");
        SubClass obj = new SubClass();
        obj.m1();
    }
}
class SubClass{
    public void m1(){
        Out.log("In MyInnerMemberClass.m1()");
    }
}
</source>


[[Category:VJET|Java2JS]]
[[Category:JavaToJs]]