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| − | <br>
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| − | EGL native types are in three categories: <br>
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| − |
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| − | :[[Declaring data#Values_of_simple_value_types|Simple value types]]:
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| − |
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| − | ::BigInt, Date, Decimal(''n''), Decimal(''n'', ''p''),
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| − |
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| − | ::Float, Int, SmallFloat, SmallInt, Timestamp(''pattern'')
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| − |
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| − | :[[Declaring data#Values_of_simple_reference_types|Simple reference types]]:
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| − |
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| − | ::Decimal, Number, String (now a value type),
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| − |
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| − | ::Timestamp (now a value type)
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| − |
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| − | :Other reference types:
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| − |
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| − | ::[[EDT:Declaring data#Any|Any]], [[Declaring data#Dictionary|Dictionary]], [[Declaring data#List|List]]
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| − |
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| − | <br>Note:
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| − | *The '''as''' operator casts a value from one type to another.
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| − | *The '''isa''' operator tests whether a value is of a given type.
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| − |
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| − | <br>See also [[Working with custom types|Working with custom types]].
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| − | <br>
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| − | = <br> '''Values of simple value types''' =
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| − | <source lang="java">
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| − | /** Character value types. **/
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| − | /** Note: String without parameter will be a reference type in EDT 1.0. **/
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| − | // Defaults to an empty string.
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| − | firstName String;
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| − | // Defaults to null.
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| − | secondName String?;
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| − | // Initializes value to "John" and allows a future value to be null.
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| − | thirdName String? = "John";
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| − | // Initializes the value, which is unchangeable.
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| − | // Note: the elements of constant lists and dictionaries are changeable.)
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| − | const LANGUAGE String = "EGL";
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| − | /** Numeric value types. **/
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| − | // Defaults to 0.
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| − | someVal Int;
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| − | // Defaults to 0.0.
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| − | coord Float;
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| − | // Initializes value to 4.5
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| − | distance Float = 4.5;
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| − | // Initializes value to 4
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| − | newDistance int = distance as int;
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| − | // Defaults to 000.00.
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| − | // Can hold 5 digits total, with 2 after the decimal point.
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| − | amount Decimal(5,2);
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| − |
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| − | /** Date-and-time value types. **/
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| − | // Defaults to today's date.
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| − | today Date;
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| − | // Initializes the date to 30 January 2015.
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| − | future Date = "01/30/2015";
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| − |
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| − | // Defaults to now. the second declaration uses the default pattern.
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| − | now TIMESTAMP("ddHHmmssffffff");
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| − | later TIMESTAMP("yyyyMMddHHmmss");
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| − |
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| − | /** Boolean type **/
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| − |
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| − | // Defaults to false.
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| − | toggle Boolean;
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| − | </source>
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| − |
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| − | = Values of simple reference types =
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| − |
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| − | <source lang="java">
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| − | </source>
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| − |
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| − | = Values of type Any =
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| − |
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| − | <source lang="java">
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| − | </source>
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| − | = Values of type Dictionary =
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| − |
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| − | <source lang="java">
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| − | // initializes a dictionary with 3 key/value pairs.
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| − | // By default, the keys are case insensitive.
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| − | myRef Dictionary {
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| − | driverID = 5,
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| − | lastName = "Twain",
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| − | firstName = "Mark"
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| − | };
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| − | // adds new key/value pairs to the dictionary
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| − | myRef.age = 30;
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| − | myRef["Credit"] = 700;
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| − |
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| − | // overrides an existing key/value pair
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| − | myRef.lastname = "Clemens";
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| − |
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| − |
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| − | </source>
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| − |
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| − | <br>
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| − | <br>
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| − |
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| − | = Values of type List =
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| − |
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| − | <source lang="java">
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| − |
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| − | // declares a new list, disallowing nulls.
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| − | vals Int[];
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| − |
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| − | // declares a new list, allowing nulls.
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| − | nullVals Int[];
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| − |
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| − | // declares a new list, adds 30 elements, and initializes each element to zero.
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| − | newVals Int[] = new Int[30];
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| − |
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| − | // declares a list of 4 strings by use of a set-values block
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| − | departurePhrase STRING[] = ["goodbye", "ciao"];
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| − |
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| − | // assigns the first index in the array to "au revoir"
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| − | departurePhrase[1] = "au revoir";
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| − | // assigns the last index in the list to "auf wiedersehen".
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| − | departurePhrase[departurePhrase.getSize()] = "auf wiedersehen";
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| − |
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| − | // initializes a list of 3 integers
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| − | integerList INT[] = [1,2,3];
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| − |
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| − | // initializes a list of 2 booleans
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| − | booleanList BOOLEAN[] = [ (10000 > 50000), (10000 < 50000) ];
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| − |
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| − | initializes a 2-dimensional list; that is, a list of lists
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| − | the2Dimension INT[][] = [[1,2],[3,4]];
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| − |
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| − | // creates a value in which the element values are changeable,
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| − | // but the name MINIMUMNUMBERS cannot refer to another list.
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| − | const MINIMUMNUMBERS INT[] = [1,2,3,4,5];
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| − |
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| − | // declares another list of strings.
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| − | cities String[];
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| − |
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| − | // appends a new value to the end of the list.
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| − | cities.appendElement("Delta");
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| − |
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| − | // appends two new values to the end of the list.
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| − | cities.appendAll([ "Denver", "Pueblo" ]);
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| − |
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| − | // removes the second value in the list.
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| − | removeElement(2);
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| − |
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| − | // removes all values from the list.
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| − | cities.removeAll();
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| − | </source>
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| − | <br>
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| − | <br> <br>
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| − | <br>
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