?? monitorjoptionpane.java
字號:
import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import javax.swing.*;
/**
* Description:
* <br/>Copyright (C), 2005-2008, Yeeku.H.Lee
* <br/>This program is protected by copyright laws.
* <br/>Program Name:
* <br/>Date:
* @author Yeeku.H.Lee kongyeeku@163.com
* @version 1.0
*/
public class MonitorJOptionPane
{
JFrame jf = new JFrame("測試JOptionPane");
JTextArea jta = new JTextArea(5 , 40);
JButton bn = new JButton("打開對話框");
JOptionPane jop = new JOptionPane("測試對話框", JOptionPane.WARNING_MESSAGE
,JOptionPane.YES_NO_CANCEL_OPTION );
public void init()
{
jop.addPropertyChangeListener(new PropertyChangeListener()
{
public void propertyChange(PropertyChangeEvent evt)
{
jta.append("用戶改變了選擇,老選項為:" + evt.getOldValue()
+ "\n新選項為:" + evt.getNewValue() + "!\n");
}
});
bn.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
jop.createDialog(jf, "測試對話框").setVisible(true);
jta.append(jop.getValue() + "\n");
}
});
jf.add(new JScrollPane(jta));
JPanel jp = new JPanel();
jp.add(bn);
jf.add(jp, BorderLayout.SOUTH);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.pack();
jf.setVisible(true);
}
public static void main(String[] args)
{
new MonitorJOptionPane().init();
}
}
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