Java by API/javax.swing.event/PopupMenuListener

implements PopupMenuListener

   <source lang="java">

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JMenuItem; import javax.swing.JPopupMenu; import javax.swing.event.PopupMenuEvent; import javax.swing.event.PopupMenuListener; public class MainClass {

 public static void main(String[] a) {
   JFrame frame = new JFrame();
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   ActionListener actionListener = new PopupActionListener();
   PopupMenuListener popupMenuListener = new MyPopupMenuListener();
   JPopupMenu popupMenu = new JPopupMenu("Title");
   popupMenu.addPopupMenuListener(popupMenuListener);

   JMenuItem cutMenuItem = new JMenuItem("Cut");
   cutMenuItem.addActionListener(actionListener);
   popupMenu.add(cutMenuItem);

   JMenuItem copyMenuItem = new JMenuItem("Copy");
   copyMenuItem.addActionListener(actionListener);
   popupMenu.add(copyMenuItem);
   JMenuItem pasteMenuItem = new JMenuItem("Paste");
   pasteMenuItem.addActionListener(actionListener);
   pasteMenuItem.setEnabled(false);
   popupMenu.add(pasteMenuItem);

   popupMenu.addSeparator();

   JMenuItem findMenuItem = new JMenuItem("Find");
   findMenuItem.addActionListener(actionListener);
   popupMenu.add(findMenuItem);
   JButton label = new JButton();
   frame.add(label);
   label.setComponentPopupMenu(popupMenu);
   frame.setSize(350, 250);
   frame.setVisible(true);
 }

} class PopupActionListener implements ActionListener {

 public void actionPerformed(ActionEvent actionEvent) {
   System.out.println("Selected: " + actionEvent.getActionCommand());
 }

} class MyPopupMenuListener implements PopupMenuListener {

 public void popupMenuCanceled(PopupMenuEvent popupMenuEvent) {
   System.out.println("Canceled");
 }
 public void popupMenuWillBecomeInvisible(PopupMenuEvent popupMenuEvent) {
   System.out.println("Becoming Invisible");
 }
 public void popupMenuWillBecomeVisible(PopupMenuEvent popupMenuEvent) {
   System.out.println("Becoming Visible");
 }

}

      </source>