Search - MenuItem

Search - MenuItem - List

[Button control] Demo7 DL : 0: 设计一个窗口, 窗口中的元素如下: 菜单,其内容模仿记事本的菜单三个文本框,一个按钮.在前两个文本框中输入两个整数, 点击按钮后把两数之和显示到第三个文本框中.-package cn import java.awt.* import java.awt.event.ActionEvent import java.awt.event.ActionListener import java.awt.event.WindowAdapter import java.awt.event.WindowEvent public class Mywindow extends Frame implements ActionListener{ private MenuBar mb=new MenuBar() private Menu menu1=new Menu("文件") private Menu menu2=new Menu("查看") private MenuItem mi_open=new MenuItem("打开") private MenuItem mi_save=new MenuItem("保存") private MenuItem mi_state=new MenuItem("状态") private TextField t1=new TextField(10) private TextField t2=new TextField(10) private TextField t3=new TextField(10) private Button bt=new Button("求和") public Mywindow(){ this.setTitle("这是我的第一个窗口程序") menu1.add(mi_open) menu1.add(mi_save) menu2.add(mi_state) mb.add(menu1) mb.add(menu2) this.setMenuBar(mb) this.setLayout(new FlowLayout()) this.add(t1) this.add(t2) this.add(bt) this.add(t3) t3.setEditable(false) bt.addActio
Date : 2026-01-03 Size : 3kb User : 芳