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Using PopupMenuListener

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; // Define PopupMenuListener 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");   } } public class PopupMenuListenerDemo {   public static void main(final String args[]) {     JFrame frame = new JFrame("PopupSample Example");     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     // Create popup menu, attach popup menu listener     JPopupMenu popupMenu = new JPopupMenu("Title");     PopupMenuListener popupMenuListener = new MyPopupMenuListener();     popupMenu.addPopupMenuListener(popupMenuListener);     // Cut     JMenuItem cutMenuItem = new JMenuItem("Cut");     popupMenu.add(cutMenuItem);     // Copy     JMenuItem copyMenuItem = new JMenuItem("Copy");     popupMenu.add(copyMenuItem);     // Paste     JMenuItem pasteMenuItem = new JMenuItem("Paste");     pasteMenuItem.setEnabled(false);     popupMenu.add(pasteMenuItem);     // Separator     popupMenu.addSeparator();     // Find     JMenuItem findMenuItem = new JMenuItem("Find");     popupMenu.add(findMenuItem);     JButton label = new JButton();     frame.add(label);     label.setComponentPopupMenu(popupMenu);     frame.setSize(350, 250);     frame.setVisible(true);   } }