import com.maplesoft.openmaple.*;

import com.maplesoft.externalcall.MapleException;

class Example

{

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

    {

        String[] mapleArgs = { "java" };

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

        RTable tab = (RTable)engine.evaluate( "Array([1,2,3,2]):" );

        System.out.println( "Size of rtable: " + tab.numElements() );

        List pairlist = tab.indexEntryPairs();

        for (Algebraic elem : pairlist) {

              Relation pair = (Relation)elem;

            System.out.println( "Key: " + pair.lhs() + ", Value: " + pair.rhs() );

        }

}

Size of table: 4

Key: 1, Value: 1

Key: 2, Value: 2

Key: 3, Value: 3

Key: 4, Value: 2