Name.isAssigned - Maple Programming Help

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Name.isAssigned

check if the name is assigned a value

 

Calling Sequence

Description

Examples

Calling Sequence

boolean isAssigned( ) throws MapleException

Description

• 

The isAssigned function returns true if the Name has been assigned a value, and false otherwise.

Examples

import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

    public static void main( String notused[] ) throws MapleException

    {

    String mapleArgs[];

    Engine engine;

    Name name;

    Algebraic e;

    mapleArgs = new String[1];

    mapleArgs[0] = "java";

    engine = new Engine( mapleArgs, new EngineCallBacksDefault(),

        null, null );

    name = (Name)engine.evaluate( "a:" );

    System.out.println( name.isAssigned() );

    e = engine.evaluate( "1:" );

    name.assign( e );

    System.out.println( name.isAssigned() );

    name = (Name)engine.evaluate( "int:" );

    System.out.println( name.isAssigned() );

    }

}

Executing this code produces the following output.

false

true

true

See Also

ExternalCalling/Java/MapleException

OpenMaple

OpenMaple/Java/Algebraic

OpenMaple/Java/API

OpenMaple/Java/Name

OpenMaple/Java/Name/assign

 


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