windowclosing.java

一个GUI编程的例子 一个GUI编程的例子

import javax.swing.*;
import java.awt.event.*;
public class WindowClosing{  
	public static void main(String[] args)	{  
		JFrame frame = new JFrame();	
		//设置用户关闭框架时的响应动作
		frame.addWindowListener(new QuitWindow());
             frame.setSize(200,300);
		frame.show(); //显示该框架
   }
}
class QuitWindow implements WindowListener
{
	public void windowClosing(WindowEvent e)
	{
		System.exit(0);
	}
	public void windowOpened(WindowEvent e) {}
	public void windowClosed(WindowEvent e) {}
	public void windowIconified(WindowEvent e) {}
	public void windowDeiconified(WindowEvent e) {}
	public void windowActivated(WindowEvent e) {}
	public void windowDeactivated(WindowEvent e) {}
}