极简的可用于测试的java对话框

package com.xxxx.test;

import java.awt.Button;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JFrame;
import javax.swing.JOptionPane;
public class TestUI
{
	public static void main(String[] args)
	{
		
		JFrame jf =new JFrame("bsxylj Test");
		jf.setLayout(new FlowLayout());
		
		
		{
			Button btn = new Button("test_a");
			btn.addActionListener(new ActionListener()
			{
				@Override
				public void actionPerformed(ActionEvent e) {
					// TODO Auto-generated method stub
					JOptionPane.showMessageDialog(null, "test_a");
				}			
			});
			jf.add(btn);
		}
		
		{
			Button btn = new Button("test_b");
			btn.addActionListener(new ActionListener()
			{
				@Override
				public void actionPerformed(ActionEvent e) {
					// TODO Auto-generated method stub
					JOptionPane.showMessageDialog(null, "test_b");
				}			
			});
			jf.add(btn);
		}
		

		jf.pack();
		jf.setVisible(true);
	}

}