Create simple game in java.

[Gustavo Siqueira]

Hello the all!
I create one game in Java.
I doing correct ? See code:

//TicTacToe.java
//TicTacToe - Jogo da velha

import javax.swing.JOptionPane;
import java.util.Scanner;
public class TicTacToe extends Play {
	
	private String arrayEnter[];
	String namePlayerOne;
	String namePlayerTwo;
	
	//create Scanner for get info
	Scanner input = new Scanner(System.in);
	
	//construct start
	public  TicTacToe()
	{	
		JOptionPane.showMessageDialog(null, "Welcome to game!");
		namePlayerOne  = JOptionPane.showInputDialog("Write your name: ");
		namePlayerTwo = JOptionPane.showInputDialog("Now, write the name of other player: ");
		
		displayMessageUser();
	}
	
	
	//add name of user
	public void addUser(String nameOne, String nameTwo)
	{
		namePlayerOne = nameOne;
		namePlayerTwo = nameTwo;
		
	}
	
	//return name of user
	public String getUser()
	{
		return namePlayerOne;
	}
	//method for display message of welcome for user
	public void displayMessageUser()
	{
		
		//options for user
        String valueEnter = JOptionPane.showInputDialog(null,"Write Play for play\nOr Exit for exit.");
        
        if (valueEnter.equalsIgnoreCase("Play"))
        {
        	super.Play();
        } else if (valueEnter.equalsIgnoreCase("Exit")) {
        	exitOptions();
        }
        
	}
	
	//Message of output; case the user choose the option exit
	public void exitOptions()
	{
		JOptionPane.showMessageDialog(null, "Thanks you!", "End program",JOptionPane.INFORMATION_MESSAGE);
	}
	
}



public class Principal  {
	
	public static void main(String args[])
	{
		
	
		TicTacToe tic = new TicTacToe();
		

	}

}



import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;
import javax.swing.JFrame;

public class Play  extends JFrame {
	
	private int start[][]; //start array bidimensional
	
	public  Play()
	{
		super("Game");
		
	}


		
}
	

The Class TicTaToe is one welcome and Play, is for appear the window for o play player. How to ? Help-me!

[Madhan Sundararajan Devaki]

You may need to do the following.
1. Find out how TicTacToe game is played by humans
2. Write a java program that can mimic one human user and a computer to play the game
3. Allow the program to receive inputs from human user to make a move and let the program guess (you may need to find out a way to block the human user from winning or find the right location to win) the next optimal move

[Gustavo Siqueira]

Hi! Thanks by response!
See my code:

public class Principal  {
	
	public static void main(String args[])
	{
		
	
		TicTacToe tic = new TicTacToe();
		

	}

}

//TicTacToe.java
//TicTacToe - Jogo da velha

import javax.swing.JOptionPane;
import java.util.Scanner;
public class TicTacToe extends Play {
	
	private String arrayEnter[];
	String namePlayerOne;
	String namePlayerTwo;
	
	//create Scanner for get info
	Scanner input = new Scanner(System.in);
	
	//construct start
	public  TicTacToe()
	{	
		JOptionPane.showMessageDialog(null, "Welcome to game!");
		namePlayerOne  = JOptionPane.showInputDialog("Write your name: ");
		namePlayerTwo = JOptionPane.showInputDialog("Now, write the name of other player: ");
		
		displayMessageUser();
	}
	
	
	//add name of user
	public void addUser(String nameOne, String nameTwo)
	{
		namePlayerOne = nameOne;
		namePlayerTwo = nameTwo;
		
	}
	
	//return name of user
	public String getUser()
	{
		return namePlayerOne;
	}
	//method for display message of welcome for user
	public void displayMessageUser()
	{
		
		//options for user
        String valueEnter = JOptionPane.showInputDialog(null,"Write Play for play\nOr Exit for exit.");
        
        if (valueEnter.equalsIgnoreCase("Play"))
        {
        	Play playGame = new Play();
        	
        } else if (valueEnter.equalsIgnoreCase("Exit")) {
        	exitOptions();
        }
        
	}
	
	//Message of output; case the user choose the option exit
	public void exitOptions()
	{
		JOptionPane.showMessageDialog(null, "Thanks you!", "End program",JOptionPane.INFORMATION_MESSAGE);
	}
	
}


import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;
import javax.swing.JFrame;

public class Play  {
	
	private int start[][]; //start array bidimensional
	
	public  Play()
	{
		
		JFrame labelFrame = new JFrame(); //create LabelFrame
		labelFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		labelFrame.setSize(275, 180);
		labelFrame.setVisible(true);
		
	}


		
}
	

The window of JFrame, here:

 labelFrame.setVisible(true)

. When start program, that window is run. I that run the window, when the user write Play, here:

        if (valueEnter.equalsIgnoreCase("Play"))
        {
        	//frame labelFrame.setVisible(true)
        }

Can me help ? Please?

[Madhan Sundararajan Devaki]

You may use the following.

package com.games;

import java.awt.GridLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class TicTacToe extends JFrame {

	/**
	 * Constructor.
	 *
	 * @param argTitle A String containing the title
	 */
	public TicTacToe( String argTitle ) {
	
		super( argTitle );
	}

	/**
	 * This method constructs the user interface.
	 */
	public void start() {
		EventHandler eventHandler = null;
	
		eventHandler = new EventHandler();
		buttons = new JButton[ NUMBER_OF_BUTTONS ];
		for( int i = 0; i < NUMBER_OF_BUTTONS; i++ ) {
		
			buttons[ i ] = new JButton( BUTTON_LABEL );
			buttons[ i ].setName( Integer.toString( i, RADIX ) );
			buttons[ i ].addActionListener( eventHandler );
			add( buttons[ i ] );
		}
		setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
		setLayout( new GridLayout( NUMBER_OF_ROWS, NUMBER_OF_COLS ) );
		setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
		setVisible( SHOW );
	}

	/**
	 * Executable method.
	 * Execution begins here.
	 *
	 * @param args A String array containing command-line arguments.
	 */
	public static void main( String[] args ) {
		TicTacToe game = null;
		
		game = new TicTacToe( "Tic-Tac-Toe" );
		game.start();
	}
	
	public static final String BUTTON_LABEL = "    ";
	
	public static final int NUMBER_OF_BUTTONS = 9,
		NUMBER_OF_ROWS = 3,
		NUMBER_OF_COLS = 3,
		SCREEN_WIDTH = 200,
		SCREEN_HEIGHT = 200,
		RADIX = 10;
	
	public static final boolean SHOW = true;
	// NOTE : The array of buttons is made instance variable as it will be accessed by the EventHandler
	private JButton[] buttons = null;

	/**
	 * This is a private class that evaluates the Game state for every move made by the user.
	 *
	 * NOTE : Private methods assume only correct input is passed to them.
	 */
	private class EventHandler implements ActionListener {

		/**
		 * The button clicked event handler.
		 *
		 * @param argEventObject An object of type ActionEvent.
		 */
		public void actionPerformed( ActionEvent argEventObject ) {
			JButton button = null;
		
			button = (JButton) argEventObject.getSource();
			button.setText( ( firstPerson ? SYMBOL_FIRST : SYMBOL_SECOND ) );
			// NOTE : After every move the following value is changed to indicate a different person
			firstPerson = !firstPerson;
			button.setEnabled( NOT_ENABLE );
			if( getGameState( SYMBOL_FIRST ) ) {
			
				if( this.showMessage ) {
				
					JOptionPane.showMessageDialog( null, SYMBOL_FIRST + MSG_WIN );
					disableRestOfButtons();
					return;
				}
			} else {
			
				if( getGameState( SYMBOL_SECOND ) ) {
				
					if( this.showMessage ) {

						JOptionPane.showMessageDialog( null, SYMBOL_SECOND + MSG_WIN );
						disableRestOfButtons();
						return;
					}
				} else {
				
					if( this.showMessage || isEndOfGame() ) {
						JOptionPane.showMessageDialog( null, MSG_TIE );
						disableRestOfButtons();
						return;
					}
				}
			}
		}

		/**
		 * This method disables the buttons that are still enabled.
		 */
		private void disableRestOfButtons() {

			for( JButton button : buttons ) {
			
				if( button.isEnabled() ) {
				
					button.setEnabled( NOT_ENABLE );
				}
			}
		}

		/**
		 * This method checks if all buttons have been clicked.
		 *
		 * @return boolean true if all buttons have been clicked and false otherwise
		 */
		private boolean isEndOfGame() {
			boolean endOfGame = true;
		
			for( JButton button : buttons ) {
			
				if( button.isEnabled() ) {
				
					endOfGame = false;
					break;
				}
			}
			
			return endOfGame;
		}
		
		/**
		 * This method checks the following conditions,
		 * - Whether a user has selected a full row
		 * - Whether a user has selected a full column
		 * - Whether a user hase selected a full left diagonal
		 * - Whether a user hase selected a full right diagonal
		 *
		 * @param argSymbol A String X representing the first user, while O representing the second user
		 *
		 * @return boolean true if any of the above conditions are satisfied and false otherwise
		 */
		private boolean getGameState( String argSymbol ) {
			boolean win = false;

			win = getRowwiseWin( argSymbol );
			if( !win ) {
			
				win = getColumnwiseWin( argSymbol );
			}
			if( !win ) {
			
				// Left diagonal check
				win = getWinStatus( argSymbol, LEFT_DIAGONAL_START_INDEX, LEFT_DIAGONAL_END_INDEX, LEFT_DIAGONAL_INCREMENT );
			}
			if( !win ) {
			
				// Right diagonal check
				win = getWinStatus( argSymbol, RIGHT_DIAGONAL_START_INDEX, RIGHT_DIAGONAL_END_INDEX, RIGHT_DIAGONAL_INCREMENT );
			}
			this.showMessage = win;

			return win;
		}
		
		/**
		 * This method checks the following condition,
		 * - Whether a user has selected a full row
		 *
		 * @param argSymbol A String X representing the first user, while O representing the second user
		 *
		 * @return boolean true if the above condition is satisfied and false otherwise
		 */
		private boolean getRowwiseWin( String argSymbol ) {
			boolean win = false;

			// Row-wise check
			for( int i = 0; i < buttons.length; i += NEXT_ROW ) {
			
				if( getWinStatus( argSymbol, i, ( i + COL_COUNT ), NEXT_COL  ) ) {
				
					win = true;
					break;
				}
			}

			return win;
		}
		
		/**
		 * This method checks the following condition,
		 * - Whether a user has selected a full column
		 *
		 * @param argSymbol A String X representing the first user, while O representing the second user
		 *
		 * @return boolean true if the above condition is satisfied and false otherwise
		 */
		private boolean getColumnwiseWin( String argSymbol ) {
			boolean win = false;

			// Column-wise check
			for( int i = 0; i <= COL_COUNT; i++ ) {
			
				if( getWinStatus( argSymbol, i, ( ( NEXT_ROW * COL_COUNT ) + i ), NEXT_ROW  ) ) {
				
					win = true;
					break;
				}
			}

			return win;
		}
		
		/**
		 * This is the work-horse method checks the following conditions,
		 * - Whether a user has selected a full row
		 * - Whether a user has selected a full column
		 * - Whether a user hase selected a full left diagonal
		 * - Whether a user hase selected a full right diagonal
		 *
		 * @param argSymbol A String X representing the first user, while O representing the second user
		 *
		 * @param argStartIndex An int representing the starting index
		 *
		 * @param argEndIndex An int representing the ending index
		 *
		 * @param argIncrement An int representing the increment
		 *
		 * @return boolean true if the above conditions are satisfied and false otherwise
		 */
		private boolean getWinStatus( String argSymbol, int argStartIndex, int argEndIndex, int argIncrement ) {
			boolean win = false;
			int count = 0;

			for( int i = argStartIndex; i <= argEndIndex; i += argIncrement ) {
			
				count += ( argSymbol.equals( buttons[ i ].getText() ) ? WIN : LOOSE );
			}
			win = ( count == WIN_SCORE );
			
			return win; 
		}
		
		private boolean firstPerson = true,
			showMessage = false;
		
		private final boolean NOT_ENABLE = false;
		private final int	WIN = 1,
			LOOSE = 0,
			NEXT_ROW = 3,
			COL_COUNT = 2,
			WIN_SCORE = 3,
			NEXT_COL = 1,
			LEFT_DIAGONAL_INCREMENT = 4,
			LEFT_DIAGONAL_START_INDEX = 0,
			LEFT_DIAGONAL_END_INDEX = 8,
			RIGHT_DIAGONAL_END_INDEX = 6,
			RIGHT_DIAGONAL_START_INDEX = 2,
			RIGHT_DIAGONAL_INCREMENT = 2;

		private final String SYMBOL_FIRST = "  X  ",
			SYMBOL_SECOND = "  O  ",
			MSG_WIN = " WINS...",
			MSG_TIE = "TIE...";
	}
}

[Gustavo Siqueira]

You left of my logic. Sorry, No can follow the your logic.