简单的菜单界面

[java]代码库

package day03;

import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;

public class TestMenu {
   
	public static void main(String[] args) {
		// TODO Auto-generated method stub
    JFrame frame  = new TestMenuFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
	}
} 
  

class TestMenuFrame extends JFrame{
	public TestMenuFrame(){
		setTitle("测试菜单");
		setSize(300,400);
		JMenuBar menuBar  = new JMenuBar();
		setJMenuBar(menuBar);
		JMenu fileMenu = new JMenu("文件");
		menuBar.add(fileMenu);
		JMenuItem newItem = fileMenu.add(new TestAction("新建"));
		JMenuItem openItem= fileMenu.add(new TestAction("打开"));
		fileMenu.addSeparator();
		JMenuItem saveItem = fileMenu.add(new TestAction("保存"));
		JMenuItem saveasItem = fileMenu.add(new TestAction("另存为"));
		fileMenu.addSeparator();
		JMenuItem exitItem = new JMenuItem("Exit");
		fileMenu.add(exitItem);
		exitItem.addActionListener(new AbstractAction(){
			public void actionPerformed(ActionEvent event){
				System.exit(0);
			}
		});
		newItem.setAccelerator(KeyStroke.getKeyStroke("ctrl N"));
		openItem.setAccelerator(KeyStroke.getKeyStroke("ctrl O"));
		saveItem.setAccelerator(KeyStroke.getKeyStroke("ctrl S"));
	}
}

class TestAction extends AbstractAction{
	public TestAction(String name ){
		super(name);
	}
	@Override
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		System.out.println(getValue(Action.NAME)+"selected.");
	}
	
}