WindowListener 中可以实现窗口关闭功能的方法是______。A．public void windowOpened(WindowEvent e)B．public void windowClosed(WindowEvent e)C．public void windowClosing(WindowEvent e)D．public void windowDeactivated(WindowEvent e)

题目

WindowListener 中可以实现窗口关闭功能的方法是______。

A．public void windowOpened(WindowEvent e)

B．public void windowClosed(WindowEvent e)

C．public void windowClosing(WindowEvent e)

D．public void windowDeactivated(WindowEvent e)

相似考题

1.（ 17 ）下列方法中，不属于 WindowListener 接口的是A ） windowOpened()B ） windowClosed()C ） windowActivated()D ） mouseDragged()

2.下列方法中，不属于WindowListener接口的是( )。A．windowOpened()B．windowClosed()C．window Activated()D．mouseDragged()

3.下列方法中，不属于WindowListener接口的是A．windowOpened()B．windowClosed()C．windowAetivated()D．mouseDragged()

4.下列WindowListener接口方法中当窗口被激活时调用的方法是( )。A．windowActivated(WindowEvent)B．windowClosed(WindowEvent)C．windowOpened(WindowEvent)D．windowDeactivated(WindowEvent)

参考答案和解析
正确答案：C
更多“WindowListener 中可以实现窗口关闭功能的方法是______。A.public void windowOpened(WindowEvent ”相关问题

  • 第1题：

    下列不属于接口WindowListener的方法是（ ）。

    A.windowClosing

    B.windowClosed

    C.windowMinimized

    D.windowOpened


    正确答案：C
    C。【解析】接口WindowListener包括以下方法：windowActivated、windowDeactivated、windowClosing、windowClosed、windowlconified、windowDeiconified、windowOpened方法。所以选C。

  • 第2题：

    WindowListener中可以实现窗口关闭功能的方法是( )。

    A．public void windowOpened(WindowEvent e)

    B．public void windowClosed(WindowEvent e)

    C．public void windowClosing(WindowEvent e)

    D．public void windowDeactivated(WindowEvent e)


    正确答案：B
    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；pubic void windowOpened(WindowEvent e)是窗口打开时调用；public void windowClose d(indnwEvent 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 void windowDeactivated(WmdowEvent e)是窗口非激活时调用。

  • 第3题：

    下列叙述不正确的是（）。

    A.JButton对象可以使用 addActionLister(ActionListener ls) 方法将没有实现ActionListener接口的类的实例注册为自己的监视器。#B.监视WindowEvent事件的监视器必须实现WindowListener接口。#C.窗口可以调用setTitle(String s)方法设置窗口的标题。#D.JFrame创建的窗口默认是不可见的。
    ABC

  • 第4题：

    WindowListener中可以实现窗口关闭功能的方法是

    A．public void windowOpened(WindowEvent e)

    B．public void windowClosed(WindowEvent e)

    C．public void windowClosing(WindowEvent e)

    D．public void windowDeactivated(WindowEvent e)


    正确答案：B
    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(WindowEvente)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。

  • 第5题：

    要响应关闭窗口操作,需要对WindowEvent事件监听.WindowEvent事件监听器是实现WindowListener接口的类对象。()

    此题为判断题(对，错)。


    答案：对

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