Help with Tic Tac Toe program....

Question

I am writing a tic tac toe program, and I have already put the 9 boxes onto the screen so that it looks like the Tic Tac Toe board.
My first box looks something like this:
Rectangle2D.Double box1 = new Rectangle2D.Double(0, 0, 100, 100);
g2.draw(box1);
I want assign a number to the 9 boxes so it looks like this:
123
456
789
And I want to know how am I suppose to assign a number to a box, so that when the number is pressed it will put an "X" or "O"(depending on whose turn it is).
P.S. If you already made a Tic Tac Toe progaram can you post it so I will have an idea of what you did. thx.

Answer 1

I'd hate to post the whole thing, but if you don't have access to it, here it goes:
* @(#)TicTacToe.java     1.6 01/12/03
* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.net.*;
import java.applet.*;
* A TicTacToe applet. A very simple, and mostly brain-dead
* implementation of your favorite game! <p>
* In this game a position is represented by a white and black
* bitmask. A bit is set if a position is ocupied. There are
* 9 squares so there are 1<<9 possible positions for each
* side. An array of 1<<9 booleans is created, it marks
* all the winning positions.
* @version      1.2, 13 Oct 1995
* @author Arthur van Hoff
* @modified 04/23/96 Jim Hagen : winning sounds
* @modified 02/10/98 Mike McCloskey : added destroy()
public
class TicTacToe extends Applet implements MouseListener {
     * White's current position. The computer is white.
    int white;
     * Black's current position. The user is black.
    int black;
     * The squares in order of importance...
    final static int moves[] = {4, 0, 2, 6, 8, 1, 3, 5, 7};
     * The winning positions.
    static boolean won[] = new boolean[1 << 9];
    static final int DONE = (1 << 9) - 1;
    static final int OK = 0;
    static final int WIN = 1;
    static final int LOSE = 2;
    static final int STALEMATE = 3;
     * Mark all positions with these bits set as winning.
    static void isWon(int pos) {
     for (int i = 0 ; i < DONE ; i++) {
         if ((i & pos) == pos) {
          won[i] = true;
     * Initialize all winning positions.
    static {
     isWon((1 << 0) | (1 << 1) | (1 << 2));
     isWon((1 << 3) | (1 << 4) | (1 << 5));
     isWon((1 << 6) | (1 << 7) | (1 << 8));
     isWon((1 << 0) | (1 << 3) | (1 << 6));
     isWon((1 << 1) | (1 << 4) | (1 << 7));
     isWon((1 << 2) | (1 << 5) | (1 << 8));
     isWon((1 << 0) | (1 << 4) | (1 << 8));
     isWon((1 << 2) | (1 << 4) | (1 << 6));
     * Compute the best move for white.
     * @return the square to take
    int bestMove(int white, int black) {
     int bestmove = -1;
      loop:
     for (int i = 0 ; i < 9 ; i++) {
         int mw = moves;
     if (((white & (1 << mw)) == 0) && ((black & (1 << mw)) == 0)) {
          int pw = white | (1 << mw);
          if (won[pw]) {
          // white wins, take it!
          return mw;
          for (int mb = 0 ; mb < 9 ; mb++) {
          if (((pw & (1 << mb)) == 0) && ((black & (1 << mb)) == 0)) {
               int pb = black | (1 << mb);
               if (won[pb]) {
               // black wins, take another
               continue loop;
          // Neither white nor black can win in one move, this will do.
          if (bestmove == -1) {
          bestmove = mw;
     if (bestmove != -1) {
     return bestmove;
     // No move is totally satisfactory, try the first one that is open
     for (int i = 0 ; i < 9 ; i++) {
     int mw = moves[i];
     if (((white & (1 << mw)) == 0) && ((black & (1 << mw)) == 0)) {
          return mw;
     // No more moves
     return -1;
* User move.
* @return true if legal
boolean yourMove(int m) {
     if ((m < 0) || (m > 8)) {
     return false;
     if (((black | white) & (1 << m)) != 0) {
     return false;
     black |= 1 << m;
     return true;
* Computer move.
* @return true if legal
boolean myMove() {
     if ((black | white) == DONE) {
     return false;
     int best = bestMove(white, black);
     white |= 1 << best;
     return true;
* Figure what the status of the game is.
int status() {
     if (won[white]) {
     return WIN;
     if (won[black]) {
     return LOSE;
     if ((black | white) == DONE) {
     return STALEMATE;
     return OK;
* Who goes first in the next game?
boolean first = true;
* The image for white.
Image notImage;
* The image for black.
Image crossImage;
* Initialize the applet. Resize and load images.
public void init() {
     notImage = getImage(getCodeBase(), "images/not.gif");
     crossImage = getImage(getCodeBase(), "images/cross.gif");
     addMouseListener(this);
public void destroy() {
removeMouseListener(this);
* Paint it.
public void paint(Graphics g) {
     Dimension d = getSize();
     g.setColor(Color.black);
     int xoff = d.width / 3;
     int yoff = d.height / 3;
     g.drawLine(xoff, 0, xoff, d.height);
     g.drawLine(2*xoff, 0, 2*xoff, d.height);
     g.drawLine(0, yoff, d.width, yoff);
     g.drawLine(0, 2*yoff, d.width, 2*yoff);
     int i = 0;
     for (int r = 0 ; r < 3 ; r++) {
     for (int c = 0 ; c < 3 ; c++, i++) {
          if ((white & (1 << i)) != 0) {
          g.drawImage(notImage, c*xoff + 1, r*yoff + 1, this);
          } else if ((black & (1 << i)) != 0) {
          g.drawImage(crossImage, c*xoff + 1, r*yoff + 1, this);
* The user has clicked in the applet. Figure out where
* and see if a legal move is possible. If it is a legal
* move, respond with a legal move (if possible).
public void mouseReleased(MouseEvent e) {
     int x = e.getX();
     int y = e.getY();
     switch (status()) {
     case WIN:
     case LOSE:
     case STALEMATE:
     play(getCodeBase(), "audio/return.au");
     white = black = 0;
     if (first) {
          white |= 1 << (int)(Math.random() * 9);
     first = !first;
     repaint();
     return;
     // Figure out the row/column
     Dimension d = getSize();
     int c = (x * 3) / d.width;
     int r = (y * 3) / d.height;
     if (yourMove(c + r * 3)) {
     repaint();
     switch (status()) {
     case WIN:
          play(getCodeBase(), "audio/yahoo1.au");
          break;
     case LOSE:
          play(getCodeBase(), "audio/yahoo2.au");
          break;
     case STALEMATE:
          break;
     default:
          if (myMove()) {
          repaint();
          switch (status()) {
          case WIN:
               play(getCodeBase(), "audio/yahoo1.au");
               break;
          case LOSE:
               play(getCodeBase(), "audio/yahoo2.au");
               break;
          case STALEMATE:
               break;
          default:
               play(getCodeBase(), "audio/ding.au");
          } else {
          play(getCodeBase(), "audio/beep.au");
     } else {
     play(getCodeBase(), "audio/beep.au");
public void mousePressed(MouseEvent e) {
public void mouseClicked(MouseEvent e) {
public void mouseEntered(MouseEvent e) {
public void mouseExited(MouseEvent e) {
public String getAppletInfo() {
     return "TicTacToe by Arthur van Hoff";