public class MyApplicationAdapter extends ApplicationAdapter
{
private DesktopShield handler; public MyApplicationAdapter(DesktopShield handler){this.handler = handler;}
public void handleQuit(ApplicationEvent e){System.exit(0);}
public void handleAbout(ApplicationEvent e)
 {
 // tell the system we're handling this, so it won't display
 // the default system "about" dialog after ours is shown.
 e.setHandled(true);
 JOptionPanel.showMessageDialog(null, "About dialog");
 }
 public void handlePreferences(ApplicationEvent e)
 {
 JOptionPanel.showMessageDialog(null, "Preferences dialog");
 }
}