下列WindowListener接口方法中当窗口被激活时调用的方法是( )。

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问题 下列WindowListener接口方法中当窗口被激活时调用的方法是(    )。

选项 A、windowActivated(WindowEvent)
B、windowClosed(WindowEvent)
C、windowOpened(WindowEvent)
D、windowDeactivated(WindowEvent)

答案1

解析 本题考查关于窗口监听器接口中基本方法的知识。选项A正确,window Activated(WindowEvent)方法在窗口激活时被调用到:选项B错误,windowClosed (WindowEvent)方法在窗口已经被关闭时调用:选项C错误,windowOpened(WindowEvem)方法在窗口已经打开时被调用到;选项D错误, windowDeactivated(WindowEvent)方法与窗口不再激活时被调用到。故本题答案是A。
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