Using MenuSelectionManager to determine the current selection path. : MenuSelectionManager « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. MenuSelectionManager

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;

import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.MenuElement;
import javax.swing.MenuSelectionManager;

public class ContructMenuMenuSelectionManager {
  public static void main(final String args[]) {
    JFrame frame = new JFrame("MenuSample Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JMenuBar menuBar = new JMenuBar();

    // File Menu, F - Mnemonic
    JMenu fileMenu = new JMenu("File");
    fileMenu.setMnemonic(KeyEvent.VK_F);
    menuBar.add(fileMenu);

    // File->New, N - Mnemonic
    JMenuItem newMenuItem = new JMenuItem("New");
    fileMenu.add(newMenuItem);
    
    newMenuItem.addActionListener(new ActionListener(){

      public void actionPerformed(ActionEvent e) {
       MenuElement[] eles =  MenuSelectionManager.defaultManager().getSelectedPath();
       for(MenuElement ele: eles){
         System.out.println(ele);
         
       }
       MenuSelectionManager.defaultManager().clearSelectedPath();
      }});

    frame.setJMenuBar(menuBar);
    frame.setSize(350, 250);
    frame.setVisible(true);
  }
}

14.28.MenuSelectionManager
	14.28.1.	Using MenuSelectionManager to determine the current selection path.
	14.28.2.	Getting the Currently Selected Menu or Menu Item
	14.28.3.	Create a change listener and register with the menu selection manager
	14.28.4.	Listening for Changes to the Currently Selected Menu or Menu Item