Java with OOP assignment (Eclipse)

"THREE Ts GAME"

*Description*

A "tic-tac-toe" game is a two player's board game where the game board is made of 3 X 3 grids. The two players, one being assigned with 'O' and the other with 'X', where each if the two players take turns marking the spaces in a 3 X 3 grid, for example X for the first player. The player who succeeds in placing three respective marks in horizontal, vertical or diagonal row wins the game.

A "toe-tac-tic" game is the opposite of a "tic-tac-toe". In "toe-tac-tic" game, you try to get your opponent to get three in a row either horizontally, vertically or diagonally. The winner is the player who does not get three in a row.

In this assignment, you are required to write both the "tic-tac-toe" and "toe-tac-tic" games using Java. When your game application started, the players will be able to choose either to play "tic-tac-toe" or "toe-tac-tic" game.

*Requirements*

1. The game must be GUI based.
2. Create all the necessary classes. At least one of the classes must be an abstract class with at least one abstract, method and all classes will have one or more constructors.
3. All classes must be part of the threeTsGame package.
4. All errors must be handled.
5. Create the html javadoc for the threeTsGame package.

View Answers

March 23, 2010 at 10:11 AM

Here is what I have done, but in Applet form. Anyone who knows how to convert my algorithm to GUI based program?

Here goes,

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

public class TicTacToe extends JApplet {
// Indicate which player has a turn; initially it is the X player
private char whoseTurn = 'X';

// Create and initialize cells
private Cell[][] cells = new Cell[3][3];

// Create and initialize a status label
private JLabel jlblStatus = new JLabel ("X's turn to play");

/** Initialize UI */
public TicTacToe() {
JPanel p = new JPanel(new GridLayout(3, 3, 0, 0));
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
p.add(cells[i][j] = new Cell());

// Set line borders on the cell panel and the status label
p.setBorder(new LineBorder(Color.red, 1));
jlblStatus.setBorder(new LineBorder(Color.yellow, 1));

// Place the panel and the label to the applet
add(p, BorderLayout.CENTER);
add(jlblStatus, BorderLayout.SOUTH);
}

/** Determine if the cells are all occupied */
public boolean isFull() {
for (int i = 0; i < 3; i++)
for (int j = 0; j < 3; j++)
if (cells[i][j].getToken() == ' ')
return false;

return true;
}

/** Determine if the player with the specified token wins */
public boolean isWon(char token) {
for (int i = 0; i < 3; i++)
if ((cells[i][0].getToken() == token)
&&(cells[i][1].getToken() == token)
&&(cells[i][2].getToken() == token)) {
return true;
}

for (int j = 0; j < 3; j++)
if ((cells[0][j].getToken() == token)
&& (cells[1][j].getToken() == token)
&& (cells[2][j].getToken() == token)) {
return true;
}

if ((cells[0][0].getToken() == token)
&& (cells[1][1].getToken() == token)
&& (cells[2][2].getToken() == token)) {
return true;
}

if ((cells[0][2].getToken() == token)
&& (cells[1][1].getToken() == token)
&& (cells[2][0].getToken() == token)) {
return true;
}

return false;
}

// An inner class for a cell
public class Cell extends JPanel {
// Token used for this cell
private char token = ' ';

public Cell() {
setBorder(new LineBorder(Color.black, 1));
addMouseListener(new MyMouseListener());
}

/**Return token */
public char getToken() {
return token;
}
/** Set a new token */
public void setToken(char c) {
token = c;
repaint();
}

/** Paint the cell */
protected void paintComponent(Graphics g) {
super.paintComponent(g);

if (token == 'X') {
g.drawLine(10, 10, getWidth() - 10, getHeight() - 10);
g.drawLine(getWidth() - 10, 10, 10, getHeight() - 10);
}
else if (token == '0') {
g.drawOval(10, 10, getWidth() - 20, getHeight() - 20);
}
}

private class MyMouseListener extends MouseAdapter {
/** Handle mouse click on a cell */
public void mouseClicked(MouseEvent e) {
// If cell is empty and game is not over
if (token == ' ' && whoseTurn != ' ') {
setToken(whoseTurn);

//Check game status
if (isWon(whoseTurn)) {
jlblStatus.setText(whoseTurn + "Win! The game is over");
whoseTurn = ' ';
}
else if (isFull()) {
jlblStatus.setText("Draw! The game is over");
whoseTurn = ' ';
}
else {
// Change the turn
whoseTurn = (whoseTurn == 'X') ? '0': 'X';
// Display whose turn
jlblStatus.setText(whoseTurn + "'s turn");
}
}
}
}
}
}