WindowListener中可以实现窗口关闭功能的方法是( )。

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问题 WindowListener中可以实现窗口关闭功能的方法是(    )。

选项 A、public void windowOpened(WindowEvent e)
B、public void windowClosed(WindowEvent e)
C、public void windowClosing(WindowEvent e)
D、public void windowDeactivated(WindowEvent e)

答案2

解析 本题考查事件监听器的概念。窗口事件接口WindowListener有几个关键方法,应该注意,如 public void windowClosmg(Wind owEvent 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 windowClose d(WindowEvent e)是窗口关闭时调用,选项B正确:public void windowIconified(WindowEve nt 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 windowActivated (WindowEvent e)是窗口激活时调用;public voidwindowDeactivated(WindowEvent e)是窗口非激活时调用。
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