类必须实现继承的抽象方法 WindowListener.windowDeactivated(WindowEvent)
public void windowDeativated(WindowEvent e){} public void windowDeactivated(WindowEvent arg0)
{
}
public void windowDeativated(WindowEvent e){} public void windowDeactivated(WindowEvent arg0)
{
}
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public void windowIconified(WindowEvent e){}
public void windowDeiconified(WindowEvent e){}
public void windowClosed(WindowEvent e){}
public void windowActivated(WindowEvent e){}
public void windowDeativated(WindowEvent e){}===================>这里写错了!windowDeativated=>windowDeactived
}