testwin.java

来自「用Jsp实现的图书管理系统代码」· Java 代码 · 共 27 行

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

public class TestWin extends JFrame implements ActionListener{
	JButton btn2=new JButton("测试");
	JPanel p=new JPanel();
	MyPanel pp=new MyPanel();
	TestWin(){
		super("test...");
		setSize(550,400);
		setLocation(130,100);
		setContentPane(p);
		p.setLayout(new FlowLayout());
		p.add(btn2);
		btn2.addActionListener(this);
		show();
		}
	public void actionPerformed(ActionEvent e){
		System.out.println("按钮被单击。。。");
		this.add(pp);
		validate();
		}
	public static void main(String args[]){
	new TestWin();
	}
	}