
import java.awt.event.WindowAdapter
import java.awt.event.WindowEvent
import javax.swing.JFrame
import javax.swing.JOptionPane
public class JButtonTest extends JFrame
{
public static void main ( String[] args )
{
JButtonTest b = new JButtonTest ()
b.addWindowListener (new WindowAdapter ()
{
@Override
public void windowClosing ( WindowEvent e )
{
int exi = JOptionPane.showConfirmDialog (null, "要退出该程序吗?", "友情基码信提示", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE)
if (exi == JOptionPane.YES_OPTION)
{
System.exit (0)
}
else
{
return
}
}
})
b.setSize (300, 300)
b.setLocationRelativeTo (null)
b.setDefaultCloseOperation (JFrame.DO_NOTHING_ON_CLOSE)
b.setVisible (true)
}
}
用JFrame写的java小应用是直接带有窗口的,在main()中加上setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)。如果想写颤者则茄棚点击事件来实现关闭窗嫌差口,试试 System.exit(0)
// register.addActionListener(new AbstractAction() { 再这一行前加下面一下纯尺猜JFrame 做型f = this
// 里面这样写困孙
f.setVisible(false)
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