参考答案：D

解析： 窗口事件接口WindowListener的方法有：public void windowClosing(WindowEvent e)是把退出窗口的语句写在本方法中；public void windowOpened(WindowEvent e)是窗口打开时调用；public void windowClosed(WindowEvent e)是窗口关闭时调用；public void windowIconified(WindowEvent e)是窗口图标化时调用；public void windowDeiconified(WindowEvent e)是窗口非图标化时调用；public void windowActived(WindowEvent e)是窗口激活时调用；public void windowDeactived(WindowEvent e)是窗口非激活时调用。因此，选项D不是windowListener接口的方法。