Java || Simple Tic Tac Toe Game Sample Code GUI

July 08, 2013 admin No comments

The following is another homework assignment which was presented in an intro to Java class. This program was used to provide more practice creating a graphical user interface.

REQUIRED KNOWLEDGE FOR THIS PROGRAM

JFrame JMenu JButtons JPanel JOptionPane How To Play Tic-Tac-Toe Special Fonts For This Game - Click Here To Download Executable .Jar File - Click Here To Download & Play

This program features a graphical user interface (GUI) which has nine buttons arranged in a square. A user plays the game by clicking the mouse in a available button. The game then places a symbol on the clicked button alternating between the letters “X” and an “O.”

The game begins by clicking on the “New Game” button. This action will clear away any text on the 9 game buttons. The 9 game buttons are still disabled, but the radio button is enabled. This means someone must select who plays first: “X” or “O.” After selecting the starting player then the 9 game buttons become enabled.

When a player clicks on one of the 9 available game buttons, the text on that button will change into an “X” or an “O.” The game stops when one of the two players has 3 identical symbols in a row, a column, or a diagonal. When there is such a winner, the symbol of the winner is displayed to the screen. Sometimes all 9 game buttons have been clicked on but there is still no winner. In that case the text “Tie” is displayed to the screen.

The two buttons “New Game” and “Quit” remain enabled at all times. Clicking on “Quit” will close the window.

This program was implemented into 3 different files, so the code for this program will be broken up into 3 sections. The three-file solution always has one file (the driver) which contains the “main” function. Another file contains the implementation of the graphical user interface (GUI), and the last file contains logic, which in this case is the game algorithms.

==== File #1 – TicTacToe.java ====





		
		
			#1 - The 'Driver'
			
Java
			
			// ============================================================================
//    Author: Kenneth Perkins
//    Date:   July 8, 2013
//    Taken From: http://programmingnotes.org/
//    File:  TicTacToe.java
//    Description: This is the driver program for a three-file solution
//          which implements the game of tic tac toe. The driver program 
//          always contains the method main. 
// ============================================================================
import javax.swing.*;

public class TicTacToe
{
    public static void main(String[] args)
    {
        // display message to the screen
        JOptionPane.showMessageDialog(null, "Game created by Kenneth Perkins for " +
                "use on the website 'My Programming Notes'" +
                "\n               Visit:  http://programmingnotes.org/",
                "Starting Game..", JOptionPane.INFORMATION_MESSAGE);
        
        // start game
        new GUI();
    }// End of main
}// http://programmingnotes.org/
			
				
					
				
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						// ============================================================================
//    Author: Kenneth Perkins
//    Date:   July 8, 2013
//    Taken From: http://programmingnotes.org/
//    File:  TicTacToe.java
//    Description: This is the driver program for a three-file solution
//          which implements the game of tic tac toe. The driver program 
//          always contains the method main. 
// ============================================================================
import javax.swing.*;
 
public class TicTacToe
{
    public static void main(String[] args)
    {
        // display message to the screen
        JOptionPane.showMessageDialog(null, "Game created by Kenneth Perkins for " +
                "use on the website 'My Programming Notes'" +
                "\n               Visit:  http://programmingnotes.org/",
                "Starting Game..", JOptionPane.INFORMATION_MESSAGE);
        
        // start game
        new GUI();
    }// End of main
}// http://programmingnotes.org/

==== File #2 – GUI.java ====

This is the GUI (graphical user interface) class for a three-file solution which implements the game of tic tac toe. The sole purpose of this source code is to define the GUI and call methods in the BusinessLogic class when needed.





		
		
			#2 - The 'GUI'
			
Java
			
			// ============================================================================
//    Author: Kenneth Perkins
//    Date:   July 8, 2013
//    Taken From: http://programmingnotes.org/
//    File:  GUI.java
//    Description: This is the GUI (graphical user interface) class 
//          for a three-file solution which implements the game of tic tac toe.
//          The sole purpose of this source code is to define the GUI
//          and call methods in the BusinessLogic class when needed.
// ============================================================================
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class GUI extends JFrame implements ActionListener
{
  // setting up ALL the variables
    JFrame window = new JFrame("Kenneth's Tic Tac Toe Game");
    
    JMenuBar mnuMain = new JMenuBar();
    JMenuItem   mnuNewGame = new JMenuItem("  New Game"), 
                mnuGameTitle = new JMenuItem("|Tic Tac Toe|  "),
                mnuStartingPlayer = new JMenuItem(" Starting Player"),
                mnuExit = new JMenuItem("    Quit");

    JButton btnEmpty[] = new JButton[10];
    
    JPanel  pnlNewGame = new JPanel(),
                pnlNorth = new JPanel(),
                pnlSouth = new JPanel(),
                pnlTop = new JPanel(),
                pnlBottom = new JPanel(),
                pnlPlayingField = new JPanel();
    JPanel radioPanel = new JPanel();
    
    private JRadioButton SelectX = new JRadioButton("User Plays X", false);
    private  JRadioButton SelectO = new JRadioButton("User Plays O", false);
    private ButtonGroup radioGroup;
    private  String startingPlayer= "";
    final int X = 800, Y = 480, color = 190; // size of the game window
    private boolean inGame = false;
    private boolean win = false;
    private boolean btnEmptyClicked = false;
    private boolean setTableEnabled = false;
    private String message;
    private Font font = new Font("Rufscript", Font.BOLD, 100);
    private int remainingMoves = 1;
    private int wonNumber1 = 1, wonNumber2 = 1, wonNumber3 = 1;
    
    final int winCombo[][] = new int[][]    {
        {1, 2, 3},          {1, 4, 7},      {1, 5, 9},
        {4, 5, 6},          {2, 5, 8},      {3, 5, 7},
        {7, 8, 9},          {3, 6, 9}
    /*Horizontal Wins*/     /*Vertical Wins*/       /*Diagonal Wins*/
    };  //end array

//===============================  GUI  ========================================//
    public GUI() //This is the constructor
    {
    //Setting window properties:
        window.setSize(X, Y);
        window.setLocation(300, 180);
        window.setResizable(true);
        window.setLayout(new BorderLayout());
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
        
  //------------  Sets up Panels and text fields  ------------------------//
    // setting Panel layouts and properties
        pnlNorth.setLayout(new FlowLayout(FlowLayout.CENTER));
        pnlSouth.setLayout(new FlowLayout(FlowLayout.CENTER));
        
        pnlNorth.setBackground(new Color(70, 70, 70));
        pnlSouth.setBackground(new Color(color, color, color));
        
        pnlTop.setBackground(new Color(color, color, color));
        pnlBottom.setBackground(new Color(color, color, color));
        
        pnlTop.setLayout(new FlowLayout(FlowLayout.CENTER));
        pnlBottom.setLayout(new FlowLayout(FlowLayout.CENTER));

        radioPanel.setBackground(new Color(color, color, color));
        pnlBottom.setBackground(new Color(color, color, color));
        radioPanel.setBorder(BorderFactory.createTitledBorder(
             BorderFactory.createEtchedBorder(), "Who Goes First?"));
        
    // adding menu items to menu bar
        mnuMain.add(mnuGameTitle);
        mnuGameTitle.setEnabled(false);
        mnuGameTitle.setFont(new Font("Purisa",Font.BOLD,18));
        mnuMain.add(mnuNewGame);
        mnuNewGame.setFont(new Font("Purisa",Font.BOLD,18));
        mnuMain.add(mnuStartingPlayer);
        mnuStartingPlayer.setFont(new Font("Purisa",Font.BOLD,18));
        mnuMain.add(mnuExit);
        mnuExit.setFont(new Font("Purisa",Font.BOLD,18));//---->Menu Bar Complete
    
    // adding X & O options to menu
        SelectX.setFont(new Font("Purisa",Font.BOLD,18));
        SelectO.setFont(new Font("Purisa",Font.BOLD,18));
        radioGroup = new ButtonGroup(); // create ButtonGroup
        radioGroup.add(SelectX); // add plain to group
        radioGroup.add(SelectO);
        radioPanel.add(SelectX);
        radioPanel.add(SelectO);
        
    // adding Action Listener to all the Buttons and Menu Items
        mnuNewGame.addActionListener(this);
        mnuExit.addActionListener(this);
        mnuStartingPlayer.addActionListener(this);
    
    // setting up the playing field
        pnlPlayingField.setLayout(new GridLayout(3, 3, 2, 2));
        pnlPlayingField.setBackground(Color.black);
        for(int x=1; x <= 9; ++x)   
        {
            btnEmpty[x] = new JButton();
            btnEmpty[x].setBackground(new Color(220, 220, 220));
            btnEmpty[x].addActionListener(this);
            pnlPlayingField.add(btnEmpty[x]);
            btnEmpty[x].setEnabled(setTableEnabled);
        }

    // adding everything needed to pnlNorth and pnlSouth
        pnlNorth.add(mnuMain);
        BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
        
    // adding to window and Showing window
        window.add(pnlNorth, BorderLayout.NORTH);
        window.add(pnlSouth, BorderLayout.CENTER);
        window.setVisible(true);
    }// End GUI

    // ===========  Start Action Performed  ===============//
    public void actionPerformed(ActionEvent click)  
    {
        // get the mouse click from the user
        Object source = click.getSource();
        
        // check if a button was clicked on the gameboard
        for(int currentMove=1; currentMove <= 9; ++currentMove) 
        {
            if(source == btnEmpty[currentMove] && remainingMoves < 10)  
            {
                btnEmptyClicked = true;
                BusinessLogic.GetMove(currentMove, remainingMoves, font, 
                        btnEmpty, startingPlayer);              
                btnEmpty[currentMove].setEnabled(false);
                pnlPlayingField.requestFocus();
                ++remainingMoves;
            }
        }
        
        // if a button was clicked on the gameboard, check for a winner
        if(btnEmptyClicked) 
        {
            inGame = true;
            CheckWin();
            btnEmptyClicked = false;
        }
        
        // check if the user clicks on a menu item
        if(source == mnuNewGame)    
        {
            System.out.println(startingPlayer);
            BusinessLogic.ClearPanelSouth(pnlSouth,pnlTop,pnlNewGame,
                    pnlPlayingField,pnlBottom,radioPanel);
            if(startingPlayer.equals(""))
            {
                JOptionPane.showMessageDialog(null, "Please Select a Starting Player", 
                        "Oops..", JOptionPane.ERROR_MESSAGE);
                BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
            }
            else
            {
                if(inGame)  
                {
                    int option = JOptionPane.showConfirmDialog(null, "If you start a new game," +
                    " your current game will be lost..." + "n" +"Are you sure you want to continue?"
                        , "New Game?" ,JOptionPane.YES_NO_OPTION);
                    if(option == JOptionPane.YES_OPTION)    
                    {
                        inGame = false;
                        startingPlayer = "";
                        setTableEnabled = false;
                    }
                    else
                    {
                        BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
                    }
                }
                // redraw the gameboard to its initial state
                if(!inGame) 
                {
                    RedrawGameBoard();
                }
            }       
        }       
        // exit button
        else if(source == mnuExit)  
        {
            int option = JOptionPane.showConfirmDialog(null, "Are you sure you want to quit?", 
            "Quit" ,JOptionPane.YES_NO_OPTION);
            if(option == JOptionPane.YES_OPTION)
            {
                System.exit(0);
            }
        }
        // select X or O player 
        else if(source == mnuStartingPlayer)  
        {
            if(inGame)  
            {
                JOptionPane.showMessageDialog(null, "Cannot select a new Starting "+
                "Player at this time.nFinish the current game, or select a New Game "+
                    "to continue", "Game In Session..", JOptionPane.INFORMATION_MESSAGE);
                BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
            }
            else
            {
                setTableEnabled = true;
                BusinessLogic.ClearPanelSouth(pnlSouth,pnlTop,pnlNewGame,
                        pnlPlayingField,pnlBottom,radioPanel);
                
                SelectX.addActionListener(new RadioListener());
                SelectO.addActionListener(new RadioListener());
                radioPanel.setLayout(new GridLayout(2,1));
                
                radioPanel.add(SelectX);
                radioPanel.add(SelectO);
                pnlSouth.setLayout(new GridLayout(2, 1, 2, 1));
                pnlSouth.add(radioPanel);
                pnlSouth.add(pnlBottom);
            }
        }
        pnlSouth.setVisible(false); 
        pnlSouth.setVisible(true);  
    }// End Action Performed
    
    // ===========  Start RadioListener  ===============//  
    private class RadioListener implements ActionListener 
    {
        public void actionPerformed(ActionEvent event) 
        {
            JRadioButton theButton = (JRadioButton)event.getSource();
            if(theButton.getText().equals("User Plays X")) 
            {
                startingPlayer = "X";
            }
            if(theButton.getText().equals("User Plays O"))
            {
                startingPlayer = "O";
            }
            
            // redisplay the gameboard to the screen
            pnlSouth.setVisible(false); 
            pnlSouth.setVisible(true);          
            RedrawGameBoard();
        }
    }// End RadioListener
/*
        ----------------------------------
        Start of all the other methods. |
        ----------------------------------
*/
    private void RedrawGameBoard()  
    {
        BusinessLogic.ClearPanelSouth(pnlSouth,pnlTop,pnlNewGame,
                pnlPlayingField,pnlBottom,radioPanel);
        BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);       
        
        btnEmpty[wonNumber1].setBackground(new Color(220, 220, 220));
        btnEmpty[wonNumber2].setBackground(new Color(220, 220, 220));
        btnEmpty[wonNumber3].setBackground(new Color(220, 220, 220));
        remainingMoves = 1;
        
        for(int x=1; x <= 9; ++x)   
        {
            btnEmpty[x].setText("");
            btnEmpty[x].setEnabled(setTableEnabled);
        }
        
        win = false;        
    }
    
    private void CheckWin() 
    {   
        for(int x=0; x < 8; ++x)    
        {
            if(!btnEmpty[winCombo[x][0]].getText().equals("") &&
                    btnEmpty[winCombo[x][0]].getText().equals(btnEmpty[winCombo[x][1]].getText()) &&
                    btnEmpty[winCombo[x][1]].getText().equals(btnEmpty[winCombo[x][2]].getText())
            /*
                The way this checks the if someone won is:
                First: it checks if the btnEmpty[x] is not equal to an empty string-    x being the array number 
                    inside the multi-dementional array winCombo[checks inside each of the 7 sets][the first number]
                Secong: it checks if btnEmpty[x] is equal to btnEmpty[y]- x being winCombo[each set][the first number]
                    y being winCombo[each set the same as x][the second number] (So basically checks if the first and
                    second number in each set is equal to each other)
                Third: it checks if btnEmtpy[y] is eual to btnEmpty[z]- y being the same y as last time and z being
                    winCombo[each set as y][the third number]
                Conclusion: So basically it checks if it is equal to the btnEmpty is equal to each set of numbers
            */
                )   
            {
                win = true;
                wonNumber1 = winCombo[x][0];
                wonNumber2 = winCombo[x][1];
                wonNumber3 = winCombo[x][2];
                btnEmpty[wonNumber1].setBackground(Color.white);
                btnEmpty[wonNumber2].setBackground(Color.white);
                btnEmpty[wonNumber3].setBackground(Color.white);
                break;
            }
        }
        if(win || (!win && remainingMoves > 9)) 
        {
            if(win) 
            {
                if(startingPlayer.equals("X"))
                {
                    if(remainingMoves % 2 == 0)
                        message = "      X has won!";
                    else
                        message = "      O has won!";
                }
                else
                {
                    if(remainingMoves % 2 == 0)
                        message = "      O has won!";
                    else    
                        message = "      X has won!";
                }
                JOptionPane.showMessageDialog(null, message, "Congrats!", 
                        JOptionPane.INFORMATION_MESSAGE);               
                
            }   
            else if(!win && remainingMoves > 9) 
            {
                message = "Both players have tied!";
                JOptionPane.showMessageDialog(null, message, "Tie Game!", 
                        JOptionPane.WARNING_MESSAGE);
            }
            for(int x=1; x <= 9; ++x)   
            {
                btnEmpty[x].setEnabled(false);
            }
            win = false;
            inGame = false;
            startingPlayer = "";            
        }
    }// End of CheckWin
}// http://programmingnotes.org/        	
			
				
					
				
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						// ============================================================================
//    Author: Kenneth Perkins
//    Date:   July 8, 2013
//    Taken From: http://programmingnotes.org/
//    File:  GUI.java
//    Description: This is the GUI (graphical user interface) class 
//          for a three-file solution which implements the game of tic tac toe.
//          The sole purpose of this source code is to define the GUI
//          and call methods in the BusinessLogic class when needed.
// ============================================================================
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class GUI extends JFrame implements ActionListener
{
  // setting up ALL the variables
    JFrame window = new JFrame("Kenneth's Tic Tac Toe Game");
    
    JMenuBar mnuMain = new JMenuBar();
    JMenuItem   mnuNewGame = new JMenuItem("  New Game"), 
                mnuGameTitle = new JMenuItem("|Tic Tac Toe|  "),
                mnuStartingPlayer = new JMenuItem(" Starting Player"),
                mnuExit = new JMenuItem("    Quit");
 
    JButton btnEmpty[] = new JButton[10];
    
    JPanel  pnlNewGame = new JPanel(),
                pnlNorth = new JPanel(),
                pnlSouth = new JPanel(),
                pnlTop = new JPanel(),
                pnlBottom = new JPanel(),
                pnlPlayingField = new JPanel();
    JPanel radioPanel = new JPanel();
    
    private JRadioButton SelectX = new JRadioButton("User Plays X", false);
    private  JRadioButton SelectO = new JRadioButton("User Plays O", false);
    private ButtonGroup radioGroup;
    private  String startingPlayer= "";
    final int X = 800, Y = 480, color = 190; // size of the game window
    private boolean inGame = false;
    private boolean win = false;
    private boolean btnEmptyClicked = false;
    private boolean setTableEnabled = false;
    private String message;
    private Font font = new Font("Rufscript", Font.BOLD, 100);
    private int remainingMoves = 1;
    private int wonNumber1 = 1, wonNumber2 = 1, wonNumber3 = 1;
    
    final int winCombo[][] = new int[][]    {
        {1, 2, 3},          {1, 4, 7},      {1, 5, 9},
        {4, 5, 6},          {2, 5, 8},      {3, 5, 7},
        {7, 8, 9},          {3, 6, 9}
    /*Horizontal Wins*/     /*Vertical Wins*/       /*Diagonal Wins*/
    };  //end array
 
//===============================  GUI  ========================================//
    public GUI() //This is the constructor
    {
    //Setting window properties:
        window.setSize(X, Y);
        window.setLocation(300, 180);
        window.setResizable(true);
        window.setLayout(new BorderLayout());
        window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
        
  //------------  Sets up Panels and text fields  ------------------------//
    // setting Panel layouts and properties
        pnlNorth.setLayout(new FlowLayout(FlowLayout.CENTER));
        pnlSouth.setLayout(new FlowLayout(FlowLayout.CENTER));
        
        pnlNorth.setBackground(new Color(70, 70, 70));
        pnlSouth.setBackground(new Color(color, color, color));
        
        pnlTop.setBackground(new Color(color, color, color));
        pnlBottom.setBackground(new Color(color, color, color));
        
        pnlTop.setLayout(new FlowLayout(FlowLayout.CENTER));
        pnlBottom.setLayout(new FlowLayout(FlowLayout.CENTER));
 
        radioPanel.setBackground(new Color(color, color, color));
        pnlBottom.setBackground(new Color(color, color, color));
        radioPanel.setBorder(BorderFactory.createTitledBorder(
             BorderFactory.createEtchedBorder(), "Who Goes First?"));
        
    // adding menu items to menu bar
        mnuMain.add(mnuGameTitle);
        mnuGameTitle.setEnabled(false);
        mnuGameTitle.setFont(new Font("Purisa",Font.BOLD,18));
        mnuMain.add(mnuNewGame);
        mnuNewGame.setFont(new Font("Purisa",Font.BOLD,18));
        mnuMain.add(mnuStartingPlayer);
        mnuStartingPlayer.setFont(new Font("Purisa",Font.BOLD,18));
        mnuMain.add(mnuExit);
        mnuExit.setFont(new Font("Purisa",Font.BOLD,18));//---->Menu Bar Complete
    
    // adding X & O options to menu
        SelectX.setFont(new Font("Purisa",Font.BOLD,18));
        SelectO.setFont(new Font("Purisa",Font.BOLD,18));
        radioGroup = new ButtonGroup(); // create ButtonGroup
        radioGroup.add(SelectX); // add plain to group
        radioGroup.add(SelectO);
        radioPanel.add(SelectX);
        radioPanel.add(SelectO);
        
    // adding Action Listener to all the Buttons and Menu Items
        mnuNewGame.addActionListener(this);
        mnuExit.addActionListener(this);
        mnuStartingPlayer.addActionListener(this);
    
    // setting up the playing field
        pnlPlayingField.setLayout(new GridLayout(3, 3, 2, 2));
        pnlPlayingField.setBackground(Color.black);
        for(int x=1; x <= 9; ++x)   
        {
            btnEmpty[x] = new JButton();
            btnEmpty[x].setBackground(new Color(220, 220, 220));
            btnEmpty[x].addActionListener(this);
            pnlPlayingField.add(btnEmpty[x]);
            btnEmpty[x].setEnabled(setTableEnabled);
        }
 
    // adding everything needed to pnlNorth and pnlSouth
        pnlNorth.add(mnuMain);
        BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
        
    // adding to window and Showing window
        window.add(pnlNorth, BorderLayout.NORTH);
        window.add(pnlSouth, BorderLayout.CENTER);
        window.setVisible(true);
    }// End GUI
 
    // ===========  Start Action Performed  ===============//
    public void actionPerformed(ActionEvent click)  
    {
        // get the mouse click from the user
        Object source = click.getSource();
        
        // check if a button was clicked on the gameboard
        for(int currentMove=1; currentMove <= 9; ++currentMove) 
        {
            if(source == btnEmpty[currentMove] && remainingMoves < 10)  
            {
                btnEmptyClicked = true;
                BusinessLogic.GetMove(currentMove, remainingMoves, font, 
                        btnEmpty, startingPlayer);              
                btnEmpty[currentMove].setEnabled(false);
                pnlPlayingField.requestFocus();
                ++remainingMoves;
            }
        }
        
        // if a button was clicked on the gameboard, check for a winner
        if(btnEmptyClicked) 
        {
            inGame = true;
            CheckWin();
            btnEmptyClicked = false;
        }
        
        // check if the user clicks on a menu item
        if(source == mnuNewGame)    
        {
            System.out.println(startingPlayer);
            BusinessLogic.ClearPanelSouth(pnlSouth,pnlTop,pnlNewGame,
                    pnlPlayingField,pnlBottom,radioPanel);
            if(startingPlayer.equals(""))
            {
                JOptionPane.showMessageDialog(null, "Please Select a Starting Player", 
                        "Oops..", JOptionPane.ERROR_MESSAGE);
                BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
            }
            else
            {
                if(inGame)  
                {
                    int option = JOptionPane.showConfirmDialog(null, "If you start a new game," +
                    " your current game will be lost..." + "n" +"Are you sure you want to continue?"
                        , "New Game?" ,JOptionPane.YES_NO_OPTION);
                    if(option == JOptionPane.YES_OPTION)    
                    {
                        inGame = false;
                        startingPlayer = "";
                        setTableEnabled = false;
                    }
                    else
                    {
                        BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
                    }
                }
                // redraw the gameboard to its initial state
                if(!inGame) 
                {
                    RedrawGameBoard();
                }
            }       
        }       
        // exit button
        else if(source == mnuExit)  
        {
            int option = JOptionPane.showConfirmDialog(null, "Are you sure you want to quit?", 
            "Quit" ,JOptionPane.YES_NO_OPTION);
            if(option == JOptionPane.YES_OPTION)
            {
                System.exit(0);
            }
        }
        // select X or O player 
        else if(source == mnuStartingPlayer)  
        {
            if(inGame)  
            {
                JOptionPane.showMessageDialog(null, "Cannot select a new Starting "+
                "Player at this time.nFinish the current game, or select a New Game "+
                    "to continue", "Game In Session..", JOptionPane.INFORMATION_MESSAGE);
                BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);
            }
            else
            {
                setTableEnabled = true;
                BusinessLogic.ClearPanelSouth(pnlSouth,pnlTop,pnlNewGame,
                        pnlPlayingField,pnlBottom,radioPanel);
                
                SelectX.addActionListener(new RadioListener());
                SelectO.addActionListener(new RadioListener());
                radioPanel.setLayout(new GridLayout(2,1));
                
                radioPanel.add(SelectX);
                radioPanel.add(SelectO);
                pnlSouth.setLayout(new GridLayout(2, 1, 2, 1));
                pnlSouth.add(radioPanel);
                pnlSouth.add(pnlBottom);
            }
        }
        pnlSouth.setVisible(false); 
        pnlSouth.setVisible(true);  
    }// End Action Performed
    
    // ===========  Start RadioListener  ===============//  
    private class RadioListener implements ActionListener 
    {
        public void actionPerformed(ActionEvent event) 
        {
            JRadioButton theButton = (JRadioButton)event.getSource();
            if(theButton.getText().equals("User Plays X")) 
            {
                startingPlayer = "X";
            }
            if(theButton.getText().equals("User Plays O"))
            {
                startingPlayer = "O";
            }
            
            // redisplay the gameboard to the screen
            pnlSouth.setVisible(false); 
            pnlSouth.setVisible(true);          
            RedrawGameBoard();
        }
    }// End RadioListener
/*
        ----------------------------------
        Start of all the other methods. |
        ----------------------------------
*/
    private void RedrawGameBoard()  
    {
        BusinessLogic.ClearPanelSouth(pnlSouth,pnlTop,pnlNewGame,
                pnlPlayingField,pnlBottom,radioPanel);
        BusinessLogic.ShowGame(pnlSouth,pnlPlayingField);       
        
        btnEmpty[wonNumber1].setBackground(new Color(220, 220, 220));
        btnEmpty[wonNumber2].setBackground(new Color(220, 220, 220));
        btnEmpty[wonNumber3].setBackground(new Color(220, 220, 220));
        remainingMoves = 1;
        
        for(int x=1; x <= 9; ++x)   
        {
            btnEmpty[x].setText("");
            btnEmpty[x].setEnabled(setTableEnabled);
        }
        
        win = false;        
    }
    
    private void CheckWin() 
    {   
        for(int x=0; x < 8; ++x)    
        {
            if(!btnEmpty[winCombo[x][0]].getText().equals("") &&
                    btnEmpty[winCombo[x][0]].getText().equals(btnEmpty[winCombo[x][1]].getText()) &&
                    btnEmpty[winCombo[x][1]].getText().equals(btnEmpty[winCombo[x][2]].getText())
            /*
                The way this checks the if someone won is:
                First: it checks if the btnEmpty[x] is not equal to an empty string-    x being the array number 
                    inside the multi-dementional array winCombo[checks inside each of the 7 sets][the first number]
                Secong: it checks if btnEmpty[x] is equal to btnEmpty[y]- x being winCombo[each set][the first number]
                    y being winCombo[each set the same as x][the second number] (So basically checks if the first and
                    second number in each set is equal to each other)
                Third: it checks if btnEmtpy[y] is eual to btnEmpty[z]- y being the same y as last time and z being
                    winCombo[each set as y][the third number]
                Conclusion: So basically it checks if it is equal to the btnEmpty is equal to each set of numbers
            */
                )   
            {
                win = true;
                wonNumber1 = winCombo[x][0];
                wonNumber2 = winCombo[x][1];
                wonNumber3 = winCombo[x][2];
                btnEmpty[wonNumber1].setBackground(Color.white);
                btnEmpty[wonNumber2].setBackground(Color.white);
                btnEmpty[wonNumber3].setBackground(Color.white);
                break;
            }
        }
        if(win || (!win && remainingMoves > 9)) 
        {
            if(win) 
            {
                if(startingPlayer.equals("X"))
                {
                    if(remainingMoves % 2 == 0)
                        message = "      X has won!";
                    else
                        message = "      O has won!";
                }
                else
                {
                    if(remainingMoves % 2 == 0)
                        message = "      O has won!";
                    else    
                        message = "      X has won!";
                }
                JOptionPane.showMessageDialog(null, message, "Congrats!", 
                        JOptionPane.INFORMATION_MESSAGE);               
                
            }   
            else if(!win && remainingMoves > 9) 
            {
                message = "Both players have tied!";
                JOptionPane.showMessageDialog(null, message, "Tie Game!", 
                        JOptionPane.WARNING_MESSAGE);
            }
            for(int x=1; x <= 9; ++x)   
            {
                btnEmpty[x].setEnabled(false);
            }
            win = false;
            inGame = false;
            startingPlayer = "";            
        }
    }// End of CheckWin
}// http://programmingnotes.org/

==== File #3 – BusinessLogic.java ====

This is the BusinessLogic class for a three-file solution which implements the game of tic tac toe. The is the class containing algorithms.





		
		
			#3 - The 'Business Logic'
			
Java
			
			// ============================================================================
//    Author: Kenneth Perkins
//    Date:   July 8, 2013
//    Taken From: http://programmingnotes.org/
//    File:  BusinessLogic.java
//    Description: This is the BusinessLogic class for a three-file solution 
//          which implements the game of tic tac toe. The is the class 
//          containing algorithms.
// ============================================================================
import javax.swing.*;
import java.awt.*;

public class BusinessLogic
{
    public static void GetMove(int currentMove, int remainingMoves, Font font, JButton btnEmpty[], 
            String startingPlayer)
    {// gets the current move "X" or "O" for the user & displays to screen
        btnEmpty[currentMove].setFont(font);

        if(startingPlayer.equals("X"))
        {
            if(remainingMoves % 2 != 0)
            {               
                btnEmpty[currentMove].setText("X");
            }
            else
            {
                btnEmpty[currentMove].setText("O");
            }
        }
        else
        {
            if(remainingMoves % 2 != 0)
            {
                btnEmpty[currentMove].setText("O");
            }
            else
            {
                btnEmpty[currentMove].setText("X");
            }
        }
    }// End of GetMove
    
    public static void ShowGame(JPanel pnlSouth, JPanel pnlPlayingField)
    {// shows the Playing Field
        pnlSouth.setLayout(new BorderLayout());
        pnlSouth.add(pnlPlayingField, BorderLayout.CENTER);
        pnlPlayingField.requestFocus(); 
    }// End of ShowGame
    
    public static void ClearPanelSouth(JPanel pnlSouth, JPanel pnlTop, 
         JPanel pnlNewGame, JPanel pnlPlayingField, JPanel pnlBottom, JPanel radioPanel)    
    {// clears any posible panals on screen
        pnlSouth.remove(pnlTop); 
        pnlSouth.remove(pnlBottom);
        pnlSouth.remove(pnlPlayingField);
        pnlTop.remove(pnlNewGame);
        pnlSouth.remove(radioPanel);
    }// End of ClearPanelSouth 
}// http://programmingnotes.org/
			
				
					
				
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						// ============================================================================
//    Author: Kenneth Perkins
//    Date:   July 8, 2013
//    Taken From: http://programmingnotes.org/
//    File:  BusinessLogic.java
//    Description: This is the BusinessLogic class for a three-file solution 
//          which implements the game of tic tac toe. The is the class 
//          containing algorithms.
// ============================================================================
import javax.swing.*;
import java.awt.*;
 
public class BusinessLogic
{
    public static void GetMove(int currentMove, int remainingMoves, Font font, JButton btnEmpty[], 
            String startingPlayer)
    {// gets the current move "X" or "O" for the user & displays to screen
        btnEmpty[currentMove].setFont(font);
 
        if(startingPlayer.equals("X"))
        {
            if(remainingMoves % 2 != 0)
            {               
                btnEmpty[currentMove].setText("X");
            }
            else
            {
                btnEmpty[currentMove].setText("O");
            }
        }
        else
        {
            if(remainingMoves % 2 != 0)
            {
                btnEmpty[currentMove].setText("O");
            }
            else
            {
                btnEmpty[currentMove].setText("X");
            }
        }
    }// End of GetMove
    
    public static void ShowGame(JPanel pnlSouth, JPanel pnlPlayingField)
    {// shows the Playing Field
        pnlSouth.setLayout(new BorderLayout());
        pnlSouth.add(pnlPlayingField, BorderLayout.CENTER);
        pnlPlayingField.requestFocus(); 
    }// End of ShowGame
    
    public static void ClearPanelSouth(JPanel pnlSouth, JPanel pnlTop, 
         JPanel pnlNewGame, JPanel pnlPlayingField, JPanel pnlBottom, JPanel radioPanel)    
    {// clears any posible panals on screen
        pnlSouth.remove(pnlTop); 
        pnlSouth.remove(pnlBottom);
        pnlSouth.remove(pnlPlayingField);
        pnlTop.remove(pnlNewGame);
        pnlSouth.remove(radioPanel);
    }// End of ClearPanelSouth 
}// http://programmingnotes.org/

QUICK NOTES:
The highlighted lines are sections of interest to look out for.

The code is heavily commented, so no further insight is necessary. If you have any questions, feel free to leave a comment below.

This program uses custom fonts. To obtain those fonts, click here!

Click here to download & play the executable .jar file.

SAMPLE SCREENSHOT:
(click to enlarge)

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Posted in: GUI - Desktop, Java Tags: game, gui, java, tic tac toe

Java || Simple Tic Tac Toe Game Sample Code GUI

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