捕捉JDialog的关闭事件

捕捉JDialog的关闭事件

http://xxqn.iteye.com/blog/431190

public class EditJDialog extends javax.swing.JDialog implements WindowListener{


    public EditJDialog(Frame owner, boolean modal) {
        super(owner, modal);

        setSize(800, 600);
        setVisible(true);
        //setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
        this.addWindowListener((WindowListener) this);
    }

    @Override
    public void windowActivated(WindowEvent e) {
        System.out.println(0);

    }

    @Override
    public void windowClosed(WindowEvent e) {
        // TODO Auto-generated method stub
        System.out.println(1);
    }

    @Override
    public void windowClosing(WindowEvent e) {
        // TODO Auto-generated method stub
        System.out.println(2);
    }

    @Override
    public void windowDeactivated(WindowEvent e) {
        System.out.println(3);
    }

    @Override
    public void windowDeiconified(WindowEvent e) {
        // TODO Auto-generated method stub
        System.out.println(4);
    }

    @Override
    public void windowIconified(WindowEvent e) {
        // TODO Auto-generated method stub
        System.out.println(5);
    }

    @Override
    public void windowOpened(WindowEvent e) {
        // TODO Auto-generated method stub
        System.out.println(6);
    }


}

点击关闭按钮，结果是3。可以推定对应的事件是windowDeactivated，而不是网上所说的windowClosing。 
哪位给个评论，为何网上说的与我的实验会不同？