Flying Angel

import java.awt.*;import java.awt.Event.*;import javax.swing.*;/////////////////////import java.awt.event.*;/////////////////////public class PopupTest extends JFrame{    private JRadioButtonMenuItem items[];    private Color colorValeus[]={Color.blue,Color.yellow,Color.red};    private JPopupMenu popupMenu;       public PopupTest()    {        super("Using JPopupMenus");               ItemHandler handler = new ItemHandler();        String colors[] = {"Blue","yellow","Red"};               ButtonGroup colorGroup = new ButtonGroup();        popupMenu = new JPopupMenu();        items = new JRadioButtonMenuItem[3];               for ( int x=0; x<items.length; x++ ){            items[x] = new JRadioButtonMenuItem(colors[x]);                       popupMenu.add(items[x]);            colorGroup.add(items[x]);            items[x].addActionListener(handler);        }            /////////////////////            getContentPane().setBackground(Color.white);            /////////////////////            addMouseListener( new MouseAdapter() {                           public void mousePressed( MouseEvent event )                {                    checkForTriggerEvent( event );                }                               public void mouseReleased ( MouseEvent event )                {                    checkForTriggerEvent( event );                }                private void checkForTriggerEvent ( MouseEvent event )                {                    if ( event.isPopupTrigger() )                        popupMenu.show( event.getComponent(),event.getX (), event.getY() );                }    });setSize( 300,200 );setVisible( true );}public static void main( String args[] ){    PopupTest application = new PopupTest();    application.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE );    }private class ItemHandler implements ActionListener {    public void actionPerformed( ActionEvent event )    {        for ( int i=0; i<items.length; i++ )            if ( event.getSource () == items[i] )            {            /////////////////////            getContentPane().setBackground( colorValeus[i] );            /////////////////////            repaint();            return;            }    }}}