Hello everybody,
Here I want to share 'Tic Tac Toe' game also known as 'Noughts and Crosses' which I developed in Java (Swing).
/*
* Author: Ashish Gundewad.
* Program: Tic Tac Toe Game.
* Note: Use Java JDK 1.6 and above for proper execution of the code.
*/
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class TicTacToe extends JFrame implements ActionListener {
JButton b[]=new JButton[9]; // Array of 9 JButtons.
JPanel p;
JLabel l;
int fin=0;
int player,starter;
int []lock={0,0,0,0,0,0,0,0,0}; //Locks the button to overwrite the markings.
int btn=0;
int winX[]={0,0,0,0,0,0,0,0,0}; //Stores current marked location of 'X'
int winO[]={0,0,0,0,0,0,0,0,0}; //Stores current marked location of 'O'
int isWinX[]={0,0,0,0,0,0,0,0,0};
int isWinO[]={0,0,0,0,0,0,0,0,0};
// [][]winPattern is a matrix(3x3) which stores the all possible pattern to win the game.
int [][]winPattern={{1,1,1,0,0,0,0,0,0},{0,0,0,1,1,1,0,0,0},{0,0,0,0,0,0,1,1,1},{1,0,0,1,0,0,1,0,0},{0,1,0,0,1,0,0,1,0},{0,0,1,0,0,1,0,0,1},{1,0,0,0,1,0,0,0,1},{0,0,1,0,1,0,1,0,0}};
TicTacToe(int pl) {
starter=player=pl; // Starting player; 1 for 'X" and 0 for 'O'
// Create GUI
l=new JLabel("",JLabel.CENTER);
l.setBackground(new Color(215,192,195));
l.setFont(new Font("Arial", Font.BOLD,20));
p=new JPanel();
p.setLayout(new GridLayout(3,3));
if(pl==1)
l.setText("Player 1's Turn");
else
l.setText("Player 2's Turn");
setLayout(new BorderLayout());
setVisible(true);
setSize(500,500);
setTitle("Tic Tac Toe");
add(l,"North");
add(p,"Center");
for(int i=0;i<9;i++) {
b[i]=new JButton();
b[i].addActionListener(this);
b[i].setFont(new Font("Arial", Font.BOLD,80));
b[i].setBackground(new Color(215,192,195));
p.add(b[i]);
}
addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent we) {
System.exit(0);
}
});
// End of GUI code.
} //End of constructor.
public void actionPerformed(ActionEvent ae) {
for(int i=0;i<9;i++) {
if(ae.getSource()==b[i]) {
if(lock[i]==0) { //Check wheather the button is locked.
lock[i]=1; //If not locked, then lock it.
if(player==1) { //If current player is 'X'.
b[i].setText("X");
player=0;
l.setText("Player 2's Turn");
getWin("X"); //check Winning pattern for 'X'.
}
else { //If current player is 'O'.
b[i].setText("O");
player=1;
l.setText("Player 1's Turn");
getWin("O"); //Check Winning pattern for 'O'.
}
}
}
}
}
//Method to check win pattern.
void getWin(String p) {
if(p=="X") {
for(int i=0;i<9;i++) { //Get marked location of 'X'.
if(b[i].getText()==p)
winX[i]=1;
}
for(int i=0;i<8;i++) {
for(int j=0;j<9;j++) {
isWinX[j]=winX[j] & winPattern[i][j]; //Perform 'AND' operation of current marked position with win Pattern.
//and store it in a array for later comparision.
}
int k;
for(k=0;k<9;k++) {
if(isWinX[k]!=winPattern[i][k]) //Compare the result array with the win pattern.
break;
}
if(k==9) {
System.out.println("X Won...");
for(int j=0;j<9;j++) {
if(winPattern[i][j]==1) { //Highlight the win pattern in green color.
b[j].setBackground(Color.GREEN);
}
}
fin=1;
int op=JOptionPane.showConfirmDialog(this, "X Won..!!! \nPlay Again?", "Tic Tac Toe", JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
if(op!=0){
System.exit(0);
}
else {
dispose();
new TicTacToe(1);
}
break;
}
}
}
if(p=="O") { //Similar steps as above, but for player 'O'.
for(int i=0;i<9;i++) {
if(b[i].getText()==p)
winO[i]=1;
}
for(int i=0;i<8;i++) {
for(int j=0;j<9;j++) {
isWinO[j]=winO[j] & winPattern[i][j];
}
int k;
for(k=0;k<9;k++) {
if(isWinO[k]!=winPattern[i][k])
break;
}
if(k==9) {
System.out.println("O Won...");
for(int j=0;j<9;j++) {
if(winPattern[i][j]==1) {
b[j].setBackground(Color.GREEN);
}
}
fin=1;
int op=JOptionPane.showConfirmDialog(this, "O Won..!!! \nPlay Again?", "Tic Tac Toe", JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
if(op!=0){
System.exit(0);
}
else {
dispose();
new TicTacToe(0);
}
break;
}
}
}
int k;
for(k=0;k<9;k++) {
if(lock[k]!=1) {
break;
}
}
if(k==9 && fin==0) {
System.out.println("Draw");
int op=JOptionPane.showConfirmDialog(this, "Match Draw..!!! \nPlay Again?", "Tic Tac Toe", JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
if(op!=0){
System.exit(0);
}
else {
dispose();
new TicTacToe(starter);
}
}
} //End of winPattern method.
public static void main(String []asas) { //Main method.
try {
//Applying Nimbus Look and Feel. requires Java JDK 1.6 and above.
UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
}
catch(Exception ex) { System.out.println(ex);}
new TicTacToe(1); //Call to the constructor. Parameter 1 for Player 'X'.
}
}
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