//我以前存的代碼 你可以參考下 就是你要的效果

import java.awt.EventQueue;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.KeyEvent;

import javax.swing.ButtonGroup;

import javax.swing.Icon;

import javax.swing.ImageIcon;

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.KeyStroke;

public class MenuSample {

static class MenuActionListener implements ActionListener {

public void actionPerformed(ActionEvent event) {

System.out.println("Selected: " + event.getActionCommand());

}

}

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

Runnable runner = new Runnable() {

public void run() {

MenuActionListener menuListener = new MenuActionListener();

JFrame frame = new JFrame("Menu Sample");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JMenuBar menuBar = new JMenuBar();

JMenu fileMenu = new JMenu("File");

fileMenu.setMnemonic(KeyEvent.VK_F);

menuBar.add(fileMenu);

JMenuItem newMenuItem = new JMenuItem("New", KeyEvent.VK_N);

newMenuItem.addActionListener(menuListener);

fileMenu.add(newMenuItem);

JMenuItem openMenuItem = new JMenuItem("Open", KeyEvent.VK_O);

openMenuItem.addActionListener(menuListener);

fileMenu.add(openMenuItem);

JMenuItem closeMenuItem = new JMenuItem("Close", KeyEvent.VK_C);

closeMenuItem.addActionListener(menuListener);

fileMenu.add(closeMenuItem);

fileMenu.addSeparator();

JMenuItem saveMenuItem = new JMenuItem("Save", KeyEvent.VK_S);

saveMenuItem.addActionListener(menuListener);

fileMenu.add(saveMenuItem);

fileMenu.addSeparator();

JMenuItem exitMenuItem = new JMenuItem("Exit", KeyEvent.VK_X);

exitMenuItem.addActionListener(menuListener);

fileMenu.add(exitMenuItem);

JMenu editMenu = new JMenu("Edit");

editMenu.setMnemonic(KeyEvent.VK_E);

menuBar.add(editMenu);

JMenuItem cutMenuItem = new JMenuItem("Cut", KeyEvent.VK_T);

cutMenuItem.addActionListener(menuListener);

KeyStroke ctrlXKeyStroke = KeyStroke.getKeyStroke("control X");

cutMenuItem.setAccelerator(ctrlXKeyStroke);

editMenu.add(cutMenuItem);

JMenuItem copyMenuItem = new JMenuItem("Copy", KeyEvent.VK_C);

copyMenuItem.addActionListener(menuListener);

KeyStroke ctrlCKeyStroke = KeyStroke.getKeyStroke("control C");

copyMenuItem.setAccelerator(ctrlCKeyStroke);

editMenu.add(copyMenuItem);

JMenuItem pasteMenuItem = new JMenuItem("Paste", KeyEvent.VK_P);

pasteMenuItem.addActionListener(menuListener);

KeyStroke ctrlVKeyStroke = KeyStroke.getKeyStroke("control V");

pasteMenuItem.setAccelerator(ctrlVKeyStroke);

editMenu.add(pasteMenuItem);

editMenu.addSeparator();

JMenuItem findMenuItem = new JMenuItem("Find", KeyEvent.VK_F);

findMenuItem.addActionListener(menuListener);

KeyStroke f3KeyStroke = KeyStroke.getKeyStroke("F3");

findMenuItem.setAccelerator(f3KeyStroke);

editMenu.add(findMenuItem);

JMenu findOptionsMenu = new JMenu("Options");

Icon atIcon = new ImageIcon("at.gif");

findOptionsMenu.setIcon(atIcon);

findOptionsMenu.setMnemonic(KeyEvent.VK_O);

ButtonGroup directionGroup = new ButtonGroup();

JRadioButtonMenuItem forwardMenuItem = new JRadioButtonMenuItem(

"Forward", true);

forwardMenuItem.addActionListener(menuListener);

forwardMenuItem.setMnemonic(KeyEvent.VK_F);

findOptionsMenu.add(forwardMenuItem);

directionGroup.add(forwardMenuItem);

JRadioButtonMenuItem backMenuItem = new JRadioButtonMenuItem(

"Back");

backMenuItem.addActionListener(menuListener);

backMenuItem.setMnemonic(KeyEvent.VK_B);

findOptionsMenu.add(backMenuItem);

directionGroup.add(backMenuItem);

findOptionsMenu.addSeparator();

JCheckBoxMenuItem caseMenuItem = new JCheckBoxMenuItem(

"Case Sensitive");

caseMenuItem.addActionListener(menuListener);

caseMenuItem.setMnemonic(KeyEvent.VK_C);

findOptionsMenu.add(caseMenuItem);

editMenu.add(findOptionsMenu);

frame.setJMenuBar(menuBar);

frame.setSize(350, 250);

frame.setVisible(true);

}

};

EventQueue.invokeLater(runner);

}

}