[javaSE] GUI（菜单）详解编程语言

菜单MenuBar Menu  MenuItem

调用Frame对象的setMenuBar()方法，设置菜单，参数：MenuBar对象

import java.awt.FlowLayout; 

import java.awt.Frame; 

import java.awt.Menu; 

import java.awt.MenuBar; 

import java.awt.MenuItem; 

import java.awt.event.ActionEvent; 

import java.awt.event.ActionListener; 

import java.awt.event.WindowAdapter; 

import java.awt.event.WindowEvent; 

public class MenuBarDemo { 

 private Frame frame; 

 private MenuBar menuBar; 

 private Menu menu; 

 private Menu subMenu; 

 private MenuItem menuItem; 

 public MenuBarDemo() { 

 init(); 

 addEvents(); 

 public void init() { 

 frame = new Frame("菜单测试"); 

 frame.setBounds(300, 200, 500, 400); 

 frame.setLayout(new FlowLayout()); 

 // 菜单栏 

 menuBar = new MenuBar(); 

 // 菜单 

 menu = new Menu("文件"); 

 // 菜单项 

 menuItem = new MenuItem("退出"); 

 // 菜单添加菜单项 

 menu.add(menuItem); 

 // 菜单栏添加菜单 

 menuBar.add(menu); 

 frame.setMenuBar(menuBar); 

 frame.setVisible(true); 

 public void addEvents(){ 

 frame.addWindowListener(new WindowAdapter() { 

 @Override 

 public void windowClosing(WindowEvent e) { 

 System.exit(0); 

 }); 

 //菜单点击 

 menuItem.addActionListener(new ActionListener() { 

 @Override 

 public void actionPerformed(ActionEvent e) { 

 System.exit(0); 

 }); 

 /** 

 * @param args 

 public static void main(String[] args) { 

 new MenuBarDemo(); 

}

原创文章，作者：Maggie-Hunter，如若转载，请注明出处：https://blog.ytso.com/12637.html