java设置窗体关闭时执行某些操作

public class WindowCloseTest {
public static void main(String[] args) {
JFrame frame = new JFrame();
frame.setBounds(300, 300, 300, 300);
frame.setVisible(true);
frame.addWindowListener(new MyWindowListener());
}
}

class MyWindowListener extends WindowAdapter{
@Override
public void windowClosing(WindowEvent e) {
super.windowClosing(e);
System.out.println("window is closed !");
}
}