我的问题是为什么f.addWindowListener(new MyWin());会调用MyWin类的中windowClosing(WindowEvent e)方法,它是怎么调用的?原理是什么?
import java.awt.Button;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Event;
public class AwtDemo {
public static void main(String[] args) {
// TODO Auto-generated method stub
Frame f=new Frame("my awt");
f.setSize(500,400);
f.setLocation(300,200);
f.setLayout(new FlowLayout());
Button b=new Button("我是一个按钮");
f.add(b);
f.addWindowListener(new MyWin());
f.setVisible(true);
}
}
class MyWin implements WindowListener {
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
System.out.println("退出");
System.exit(0);
}
}