刚刚到Java GUI版报告，给大家贴一个我写的五子棋程序。这里重点是关注Java GUI的设计，所以程序只能人和人走（就是没有智能：），不过大家可以看看，做个参考：

/*

 *  filename: Game.java

 * 

 *  author: jellen

 *

 */

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.geom.*;
import java.util.*;
class PaintPanel extends JPanel {
  ArrayList Items = new ArrayList();
  public PaintPanel() {
    setLayout(new BorderLayout());
    ButtonPanel buttonPanel = new ButtonPanel();
    add(buttonPanel, BorderLayout.SOUTH);
    addMouseListener(new MouseHandler());
  }
  public void paintComponent(Graphics g) {
    int startX = 50;
    int startY = 50;
    boolean isMy = false;
    super.paintComponent(g);
    Graphics2D g2 = (Graphics2D)g;
    for(int i=0; i<16; i++) {
      g2.draw(new Line2D.Double(startX, startY+20*i, startX+300, startY+20*i));
      g2.draw(new Line2D.Double(startX+20*i, startY, startX+20*i, startY+300));
    }
    for(int i=0; i<Items.size(); i++) {
      isMy = !isMy;
      if(isMy)
        g2.setColor(Color.BLACK);
      else
        g2.setColor(Color.WHITE);
      g2.fill((Ellipse2D)Items.get(i));
    }
  }
  void myRepaint() {
    repaint();
  }
  private class MouseHandler extends MouseAdapter {
    public void mousePressed(MouseEvent event) {
      int x = event.getX();
      int y = event.getY();
      paintItem(x, y);
      repaint();
    }
    void paintItem(int x, int y) {
      if(x > 50 && x < 350 && y >50 && y < 350) {
        int X = x / 20;
        int Y = y / 20;
        int centerX = X*20 + 10;
        int centerY = Y*20 + 10;
        Ellipse2D ellipse = new Ellipse2D.Double();
        ellipse.setFrameFromCenter(centerX, centerY, centerX+8, centerY+8);
        Items.add(ellipse);
      }
    }
  }
  private class ButtonPanel extends JPanel {
    public ButtonPanel() {
      JButton reset = new JButton(\"Reset\");
      add(reset);
      JButton quit = new JButton(\"Quit\");
      add(quit);
      ResetEvent listenerR = new ResetEvent();
      reset.addMouseListener(listenerR);
      QuitEvent listenerQ = new QuitEvent();
      quit.addMouseListener(listenerQ);
    }
    private class QuitEvent
        extends MouseAdapter {
      public void mouseClicked(MouseEvent event) {
        System.exit(1);
      }
    }
    private class ResetEvent
        extends MouseAdapter {
      public void mouseClicked(MouseEvent event) {
        Items.clear();
        myRepaint();
      }
    }
  }
}
class GameFrame extends JFrame {
  public GameFrame() {
    setTitle(\"A Little Game\");
    setSize(400, 500);
    setResizable(false);
    PaintPanel panel = new PaintPanel();
    getContentPane().add(panel);
  }
}
public class Game {
  public static void main(String[] args) {
    GameFrame frame = new GameFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.show();
  }
}

呵呵，现丑了。谢谢楼上两位的鼓励！
只是胡乱贴几个以前的程序，想提高论坛的人气。

要完成”五子棋“的人工智能部分如果自己重新来写，要花很多时间，如果利用现成的算法的算法应该不难：)

我的目的是学习Java Swing编程，所以不打算写算法了。(网上有五子棋的例子)

呵呵，应大家的要求，我改进了这个五子棋程序，修复了可以覆盖以前棋子的Bug，并且加入了判断输赢的模块。

现在这个程序终于有了一点可玩性，大家可以看看：）