[单项选择题] WindowListener中可以实现窗口关闭功能的方法是

[单项选择题] WindowListener中可以实现窗口关闭功能的方法是

A．public void windowOpened(WindowEvent
B．public void windowClosed(WindowEvent
C．public void windowClosing(WindowEvent
D．public void windowDeactivated(WindowEvent

参考答案：

B

问题解析:

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 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，选项B正确；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 windowActivated(WindowEvent e)是窗口激活时调用；public void windowDeactivated (WindowEvent e)是窗口非激活时调用。