Demonstrating the MenuListener : Various Event Listener « Event « Java

Demonstrating the MenuListener

Demonstrating the MenuListener
import javax.swing.ButtonGroup;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.event.MenuEvent;
import javax.swing.event.MenuListener;

public class MenuTest extends JFrame {
  public MenuTest() {

    MenuListener listener = new MenuListener() {
      public void menuCanceled(MenuEvent e) {
        dumpInfo("Canceled", e);

      public void menuDeselected(MenuEvent e) {
        dumpInfo("Deselected", e);

      public void menuSelected(MenuEvent e) {
        dumpInfo("Selected", e);

      private void dumpInfo(String s, MenuEvent e) {
        JMenu menu = (JMenu) e.getSource();
        System.out.println(s + ": " + menu.getText());

    JMenu fileMenu = new JMenu("File");
    fileMenu.add(new JMenuItem("Open"));
    fileMenu.add(new JMenuItem("Close"));
    fileMenu.add(new JMenuItem("Exit"));
    JMenu helpMenu = new JMenu("Help");
    helpMenu.add(new JMenuItem("About MenuTest"));
    helpMenu.add(new JMenuItem("Class Hierarchy"));
    helpMenu.add(new JCheckBoxMenuItem("Balloon Help"));
    JMenu subMenu = new JMenu("Categories");
    JRadioButtonMenuItem rb;
    ButtonGroup group = new ButtonGroup();
    subMenu.add(rb = new JRadioButtonMenuItem("A Little Help", true));
    subMenu.add(rb = new JRadioButtonMenuItem("A Lot of Help"));
    JMenuBar mb = new JMenuBar();

  public static void main(String args[]) {
    JFrame frame = new MenuTest();
    frame.setSize(300, 300);;


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