swing13_3.java

java 简单的java源码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class MyPanel extends JPanel
{
	public MyPanel()
   {
	   //设置GridLayout布局管理器
	   setLayout(new GridLayout(3, 3));
	   //添加按钮到指定的位置
	   bt1 = new JButton("Button1");
	   bt2 = new JButton("Button2");
	   bt3 = new JButton("Button3");
	   bt4 = new JButton("Button4");
	   bt5 = new JButton("Button5");
           bt6 = new JButton("Button6");
	   add(bt1);
	   add(bt2);
	   add(bt3);
	   add(bt4);
	   add(bt5);
           add(bt6);
   }

	JButton bt1, bt2, bt3, bt4, bt5,bt6;
}

class MyFrame extends JFrame
{
	public MyFrame()
    {
	    setTitle("Swing示例程序13.3");
        setSize(300, 200);
        setLocation(100,100);

        addWindowListener(new WindowAdapter()
        {
		    public void windowClosing(WindowEvent e)
            {  System.exit(0);
            }
        });

        Container ctPane = getContentPane();
        ctPane.add(new MyPanel());
   }
}

public class Swing13_3
{
    public static void main(String[] args)
    {
	   JFrame frame = new MyFrame();
       frame.setVisible(true);
    }
}