Run the attach sample "appletviewer test.html", click anywhere in the
appletviewer frame window after the applet have been loaded...

test.html:

<Applet Code=test_popupmenu.class Width=480 Height=360></Applet>

test_popupmenu.java:

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
 
 
public class test_popupmenu extends Applet
    implements ItemListener, MouseListener
{
    PopupMenu menu;
    CheckboxMenuItem check;
 
public void init()
{
    menu = new PopupMenu("Test CheckboxMenuItem");
    check = new CheckboxMenuItem("Checkbox", true);
 
    menu.add(check);
    this.add(menu);
 
    check.addItemListener(this);
    this.addMouseListener(this);
}
 
public void itemStateChanged(ItemEvent evt)
{

    System.out.println("check changed = " + evt);
    System.out.println("");
}
 
public void mouseClicked(MouseEvent evt)
{
    menu.show(this, 10, 10);
    System.out.println("PopupMenu's parent=" + menu.getParent());
}
 
public void mousePressed(MouseEvent evt)
{
}
 
public void mouseReleased(MouseEvent evt)
{
}
 
public void mouseEntered(MouseEvent evt)
{
}
 
public void mouseExited(MouseEvent evt)
{
}
 
}