menuitemdemo.java

java课程的资料以及实验的代码

//sample14 how to use jmenuitem

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;


public class MenuItemDemo  extends JFrame{
	public MenuItemDemo(){
		Container contentPane = getContentPane();
		Icon newIcon=new ImageIcon("new.gif","new ...");
		Icon openIcon=new ImageIcon("Open.gif","Open ...");
		
		JMenuBar mb = new JMenuBar();
		JMenu fileMenu = new JMenu("file");
		
		JMenuItem newItem= new JMenuItem("new",newIcon);
		JMenuItem openItem=new JMenuItem("open...",openIcon);
		JMenuItem saveItem= new JMenuItem("save");
		JMenuItem saveAsItem= new JMenuItem("saveas...");
		JMenuItem exitItem= new JMenuItem("exit",'x');
		
		fileMenu.add(newItem);
		fileMenu.add(openItem);
		fileMenu.add(saveItem);
		fileMenu.add(saveAsItem);
		fileMenu.addSeparator();
		fileMenu.add(exitItem);
		mb.add(fileMenu);
		setJMenuBar(mb);
		this.setSize(300,200);
		this.setVisible(true);		
	}
	public static void main(String args[])
	{
		new MenuItemDemo();
	}
}