GUI之多窗口示例

      GUI之多窗口示例，即是程序包含多个窗口，点击主窗口中的按钮，会跳出相应的窗口出来。

      包含主窗口（MainWin.java），附上代码：

import java.awt.*;import java.awt.event.*;public class MainWin implements ActionListener {Button btn1, btn2, btn3, btn4;public static void main(String[] args) {// MainWin mw = new MainWin();new MainWin();}public MainWin() {Frame f = new Frame("主窗口");Panel p = new Panel();// 初始化按钮btn1 = new Button("1");btn2 = new Button("2");btn3 = new Button("3");btn4 = new Button("4");btn1.addActionListener(this);btn2.addActionListener(this);btn3.addActionListener(this);btn4.addActionListener(this);p.add(btn1);p.add(btn2);p.add(btn3);p.add(btn4);f.add(p);f.setBounds(200, 200, 600, 400);f.setVisible(true);}public void actionPerformed(ActionEvent e) {Object obj = e.getSource();if(obj == btn1) {System.out.println("1");new FirstWin();}else if(obj == btn2) {System.out.println("2");new SecondWin();}else if(obj == btn3) {System.out.println("3");new ThirdWin();}else if(obj == btn4) {System.out.println("4");new ForthWin();}}}

子窗口1（FirstWin.java），代码：

import java.awt.*;public class FirstWin extends Frame {public FirstWin() {this.setBounds(220, 220, 200, 200);this.setTitle("1");this.setVisible(true);}}

其它子窗口类似，

子窗口2（SecondWin.java），代码：

import java.awt.*;public class SecondWin extends Frame {public SecondWin() {this.setBounds(240, 240, 200, 200);this.setTitle("2");this.setVisible(true);}}

 

子窗口3（ThirdWin.java），代码：

import java.awt.*;public class ThirdWin extends Frame {public ThirdWin() {this.setBounds(260, 260, 200, 200);this.setTitle("3");this.setVisible(true);}}

 

子窗口4（ForthWin.java），代码：

 

import java.awt.*;public class ForthWin extends Frame {public ForthWin() {this.setBounds(280, 280, 200, 200);this.setTitle("4");this.setVisible(true);}}