按钮关闭页面

import java.awt.Frame;
import java.awt.TextArea;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;

public class TestFrame {
	private Frame f= new Frame("test");
	private TextArea ta= new TextArea(6,40);
	public void init(){
		f.add(ta);
		f.addWindowListener(new MyListener());
		f.pack();
		f.setVisible(true);
	}



	public class MyListener implements WindowListener {

		public void windowActivated(WindowEvent e) {
			// TODO Auto-generated method stub
			ta.append("激活");

		}

		public void windowClosed(WindowEvent e) {
			// TODO Auto-generated method stub
			ta.append("关了");

		}

		public void windowClosing(WindowEvent e) {
			ta.append("再关着呢");
			System.exit(0);
			// TODO Auto-generated method stub

		}

		public void windowDeactivated(WindowEvent e) {
			// TODO Auto-generated method stub

		}

		public void windowDeiconified(WindowEvent e) {
			// TODO Auto-generated method stub

		}

		public void windowIconified(WindowEvent e) {
			// TODO Auto-generated method stub

		}

		public void windowOpened(WindowEvent e) {
			// TODO Auto-generated method stub

		}

	}
	public static void main(String args[]){
		new TestFrame().init();
	}



}