Java从入门到精通 - MenuPersonalTest菜单栏

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.net.URL;

import javax.swing.ButtonGroup;
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.JOptionPane;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.KeyStroke;
public class MenuPersonalTest extends JFrame{

 public MenuPersonalTest()
 {
  super();
  setTitle("MenuTest");
  setBounds(100,100,350,150);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  URL resource = this.getClass().getResource("caption.png");  //图片
  ImageIcon icon = new ImageIcon(resource);   //设置图片
  JMenuBar menuBar = new JMenuBar();   //创建菜单栏对象
  setJMenuBar(menuBar);    //添加至窗体
  final JMenu fileMenu = new JMenu("文件(F)");
  fileMenu.setMnemonic('F');  //快捷键
  
  final JMenuItem newitem = new JMenuItem("新建(N)");
  newitem.setMnemonic('N');
  newitem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK));  //ctrl+n;
  newitem.addActionListener(new ItemListener());
  fileMenu.add(newitem);
  fileMenu.addSeparator();  //添加分隔线.
  final JMenu openMenu = new JMenu("打开(O)");
  openMenu.setMnemonic('O');  //快捷键
  
  final JMenuItem OpenNewItem = new JMenuItem("未打开过的(N)");
  OpenNewItem.setMnemonic('N');
  OpenNewItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,InputEvent.CTRL_MASK|InputEvent.ALT_MASK));  //ctrl+alt+n;
  OpenNewItem.addActionListener(new ItemListener());
  openMenu.add(OpenNewItem);
  
  final JMenuItem OpenClosedItem = new JMenuItem("刚打开过的(C)");
  OpenClosedItem.setMnemonic('C');
  OpenClosedItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK|InputEvent.ALT_MASK));  //ctrl+alt+n;
  OpenClosedItem.addActionListener(new ItemListener());
  OpenClosedItem.setEnabled(false);  //不可用
  openMenu.add(OpenClosedItem);
  
  fileMenu.add(openMenu);
  
  menuBar.add(fileMenu);   //把菜单加至bar中
  
  
  final JMenu editMenu = new JMenu("编辑(E)");
  fileMenu.setMnemonic('E');  //快捷键
  final JMenu fontMenu = new JMenu("字体(F)");
  fontMenu.setIcon(icon);
  fontMenu.setMnemonic('F'); //快捷键
  
  JCheckBoxMenuItem bCheckBoxItem = new JCheckBoxMenuItem("加粗(B)");
  bCheckBoxItem.setMnemonic('B');
  bCheckBoxItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_B,InputEvent.CTRL_MASK|InputEvent.ALT_MASK));  //ctrl+alt+b;
  bCheckBoxItem.addActionListener(new ItemListener());
  fontMenu.add(bCheckBoxItem);   //添加至font菜单中
  editMenu.add(fontMenu);
  
  final JMenu attributeMenu = new JMenu("属性(A)");
  attributeMenu.setIcon(icon);
  attributeMenu.setMnemonic('A'); //快捷键
  
  JRadioButtonMenuItem rRadioButtonItem = new JRadioButtonMenuItem("只读(R)");
  rRadioButtonItem.setMnemonic('R');
  rRadioButtonItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R,InputEvent.CTRL_MASK|InputEvent.ALT_MASK));  //ctrl+alt+b;
  rRadioButtonItem.addActionListener(new ItemListener());
  rRadioButtonItem.setSelected(true);
  JRadioButtonMenuItem rRadioButtonItem2 = new JRadioButtonMenuItem("编辑(E0)");
  rRadioButtonItem2.setMnemonic('E');
  rRadioButtonItem2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_E,InputEvent.CTRL_MASK|InputEvent.ALT_MASK));  //ctrl+alt+E;
  rRadioButtonItem2.addActionListener(new ItemListener());
  rRadioButtonItem2.setSelected(false);
  ButtonGroup buttonGroup = new ButtonGroup();
  buttonGroup.add(rRadioButtonItem);
  buttonGroup.add(rRadioButtonItem2);
  attributeMenu.add(rRadioButtonItem);
  attributeMenu.add(rRadioButtonItem2);
  editMenu.add(attributeMenu);
  menuBar.add(editMenu);   //把菜单加至bar中
  
  
 }
  class ItemListener implements ActionListener{
   public void actionPerformed(ActionEvent e){
    JMenuItem menuItem =(JMenuItem)e.getSource();   //获得触发事件的菜单项
    //弹出对话框
    JOptionPane.showMessageDialog(null,"您单击的菜单是-" + menuItem.getText());
    //System.out.println("您单击的菜单是-" + menuItem.getText());
   }
  }
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  MenuPersonalTest menuPersonalTest= new MenuPersonalTest();
  menuPersonalTest.setVisible(true);
 }

}