import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class test{
    public static void main(String a[])throws Exception{
        JFrame frame=new JFrame();
        JButton button=new JButton("設置對話框");
        JPanel panel=new JPanel();
        panel.setSize(300,200);
        panel.add(button);
        frame.getContentPane().add(panel);
        
        frame.pack();
        frame.show();
        
        int i;
        i=JOptionPane.showConfirmDialog(panel,"message","title",1,2);
        if (i==0)
           System.out.println("0");
        else 
            System.out.println(i);
           
      frame.addWindowListener(new WindowAdapter(){
        public void windowClosing(WindowEvent e){
            System.exit(0);
            }
        });
        }
    }