计算机二级考试

【单选题】WindowListener中可以实现窗口关闭功能的方法是()。
A．public void windowOpened(WindowEvente)
B．public void windowClosed(WindowEvente)
C．public void windowClosing(WindowEvente)
D．public void windowDeactivated(WindowEvent
网考网参考答案：B
网考网解析：
[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。 查看试题解析出处>>