## Convert Very Large Decimal Integers to Base 62 And Back

The other day I was trying to devise a way of converting arbitrarily large base 10 integers to the order of a billion billion to base 62 and did not get much help from the web. So I devised my own solution using the BC Math extension which ships with PHP by default. So, this solution works upto PHP_INT_MAX which is 9223372036854775807 for 64-bit platform. It also works upto 99 trillion on 32-bit-platform. I used an array as a stack to store successive remainders of division by the base, which is 62, and at the end popped them one by one from the stack to generate the converted base 62 number. The converse, multiplication by successive powers of 62 and addition of those powers helped to convert base 62 back to base 10.

First I used PHP OOPS to create a class called MyBase62Converter. The code is given below:

```class MyBase62Converter
{
private \$base62StrVar = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
private \$baseInt = 62;

function encode(\$decNum)
{
\$base = \$this->baseInt;

\$myStack = array();

\$remainder = 0;

\$base62Str = \$this->base62StrVar;

do
{

\$remainder = bcmod(\$decNum, \$base);

array_push(\$myStack, \$remainder);

\$decNum = bcdiv(bcsub(\$decNum, \$remainder), \$base);

}
while(\$decNum > 0);

\$binNum = '';

while(count(\$myStack) > 0)
{

\$binNum.= substr(\$base62Str, array_pop(\$myStack), 1);
}

}

function decode(\$baseNum)
{

\$base62Str = \$this->base62StrVar;

\$base = \$this->baseInt;

\$hashLen = strlen(\$baseNum);

\$decNum = '';

for(\$i = 0; \$i < \$hashLen; \$i++)
{
\$decNum = bcadd(\$decNum, bcmul(bcpow(\$base, \$i), strpos(\$base62Str , substr(\$baseNum, \$hashLen - \$i - 1, 1))));
}

return \$decNum;
}

}

```

Using the two simple encode and decode functions we can convert base 10 integers to base 62 representation and vice versa.

You can see the example below:

```require_once("lib/class.MyBase62Converter.php");

\$encoder = new MyBase62Converter();

echo "<br />";

echo PHP_INT_MAX." encoded is ".\$encoded = \$encoder->encode(PHP_INT_MAX);

echo "<br />";

echo \$encoded." decoded is ".\$decoded = \$encoder->decode(\$encoded);

echo "<br />";

\$largeNum = bcpow(62, 6) - 1;

echo \$largeNum." encoded is ".\$encoded = \$encoder->encode(\$largeNum);

echo "<br />";

echo \$encoded." decoded is ".\$decoded = \$encoder->decode(\$encoded);

echo "<br />";

\$veryLargeNum = bcpow(62, 7) - 1; //getting 0 due to num expressed in scientfic exponential notation 2.183401055849E+14

echo \$veryLargeNum." encoded is ".\$encoded = \$encoder->encode(\$veryLargeNum);

echo "<br />";

echo \$encoded." decoded is ".\$decoded = \$encoder->decode(\$encoded);

echo "<br  />";

\$max_num = 99999999999999;

echo \$max_num." encoded is ".\$encoded = \$encoder->encode(\$max_num , 62); //99999999999999

echo "<br />";

echo \$encoded." decoded is ".\$decoded = \$encoder->decode(\$encoded);

echo "<br />";

\$new_num = 63;

echo \$new_num." encoded is ".\$encoded = \$encoder->encode(\$new_num , 62);

echo "<br />";

echo \$encoded." decoded is ".\$decoded = \$encoder->decode(\$encoded);
```

The result of code execution is given below: ## Simple File Searcher App: An Exercise in Concurrency

Here is a simple app for searching files on a computer. The app uses a recursive algorithm to compare names of files and folders with the search keyword and returns all the matches.

The procedure is as follows:

```1.	list the roots of the filesystem
2.	for each root listed in step1:
a.	list folders and files
b.	for each file in a., compare keyword with file name.
If matched, list this file in results
c.	for each folder in a,
i.  compare keyword with folder name.  If matched, list this folder in results
ii. repeat 2a. for each folder
d.	repeat a. to c. until no subfolders are found
```

The Java version is given below:

```/*
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package com.filesearch.components;

import java.io.*;
import java.io.File.*;
import java.util.concurrent.*;
import java.util.Scanner;
/**
*
* @author Dell
*/
public class FileSearcherComponent implements Runnable{

static String fileKeyword;

static long count = 0;

static File logFile;

static BufferedWriter bw;

private void logToFile(String path)
{
try{

bw.write(path, 0, path.length());
bw.newLine();

}
catch(IOException i)
{
i.printStackTrace();
}
}

@Override
public void run()
{
try{

bw = new BufferedWriter(new FileWriter(logFile, true));

}
catch(IOException i)
{
i.printStackTrace();
}

long currTime = System.currentTimeMillis();

File[] roots = File.listRoots(); //get drives

for(File root:roots)
{

File rootFile = new File(root.getPath());

traverseRoots(rootFile);
}

long endTime = System.currentTimeMillis();

double seconds = (endTime - currTime) / 1000;

System.out.printf("\n %d results in %f seconds.\n", count, seconds);

try{

bw.flush();

bw.close();
}
catch(IOException i)
{
i.printStackTrace();
}
}

private void traverseRoots(File root)
{
if(root.isDirectory())
{

String name = root.getName();

if(name.contains(fileKeyword))
{
System.out.println(root.getAbsolutePath());

logToFile(root.getAbsolutePath());

count++;
}

File[] rootFolders = root.listFiles();

if(rootFolders != null &amp;&amp; rootFolders.length &gt; 0){

for(File rootFolder: rootFolders)
{
if(rootFolder.isDirectory())
{

String name1 = rootFolder.getName();

if(name1.contains(fileKeyword))
{
System.out.println(rootFolder.getAbsolutePath());

logToFile(rootFolder.getAbsolutePath());

count++;
}

traverseRoots(rootFolder);
}
else if(rootFolder.isFile())
{
String name2 = rootFolder.getName();

if(name2.contains(fileKeyword))
{
System.out.println(rootFolder.getAbsolutePath());

logToFile(rootFolder.getAbsolutePath());

count++;
}
}

}
}
}
else if(root.isFile())
{
String name3 = root.getName();

if(name3.contains(fileKeyword))
{
System.out.println(root.getAbsolutePath());

logToFile(root.getAbsolutePath());

count++;

}
}

}

public static void main(String[] args)
{
FileSearcherComponent f = new FileSearcherComponent();

logFile = new File("LOG.txt");

if(logFile.exists())
{
logFile.delete();
}

try{

logFile.createNewFile();
}
catch(IOException i)
{
i.printStackTrace();
}

System.out.print("Enter search keyword: ");

fileKeyword  = new Scanner(System.in).nextLine();

es.execute(f);

}

}```

Copy, compile, run and ENJOY!

## Coding a game of tic-tac-toe using 3 different languages

I used a brute force logic to develop an algorithm for tic-tac-toe.
Firstly, there are only 8 triads of winning points or moves: three vertical, three horizontal and 2 diagonals.
Players play taking turns or making moves alternately. Player 1 makes a maximum of 5 moves and player
2 makes a maximum of 4 moves because there are a maximum of 9 moves to be made and player 1 begins the game.

Furthermore, player 1 has already made 2 moves before getting his first chance to form a winning line.
Players take turns alternately which means that when player 1 gets his first chance to form a line,
player 2 has already made 2 moves of his own. So player 1 can only form a line from move 5. Player 2
can only form his first line at move 6. Player 1 gets his second chance to win at move 7 and his third
and last chance at move 9. Similarly, player 2 gets his second and last chance at move 8.

Every time there is a chance to form a winning line, all possible permutations and combinations of
the current players moves, taken three at a time, are compared with all 8 winning triads. If a match is found,
the current player wins. If player 1 forms a line first, player 2 does not get a chance to continue the game.

The game has 3 versions: PHP, Java and C#

### PHP Version

It can be played via the command-line executable of your PHP installation.

In the game of tic-tac-toe there is a 3X3 grid or board.The game is for two players. The players 1 and 2 take turns to mark the cells of the grid with their mark which is a zero or a cross.

The first player to complete a vertical, horizontal or diagonal triad of zeroes or crosses, wins.

In this implementation, I have used the OOPs or Object Oriented Programming features of PHP.

I have divided the functionality and roles or responsibilities between various classes as follows.

Player makes Move on Board to play Game. So the classes are:

1. Move
2. Board
3. Player
4. Game

First we discuss the move class:

### Move:

Move made by either of the players.

```class Move
{
private \$row; // between 1 and 3
private \$column; //between 1 and 3 on the 3x3 board
private \$isValid; //whether the move is valid or not

//getters and setters for the properties
public function setRow(\$i)
{
\$this->row = \$i;
}

public function setColumn(\$j)
{
\$this->column = \$j;
}

public function setValid(\$valid)
{
\$this->isValid = \$valid;
}

public function getRow()
{
return \$this->row;
}

public function getColumn()
{
return \$this->column;
}

public function getValid()
{
return \$this->isValid;
}
}```

Then comes the Board class where the moves are made.

### Board:

The board on which the game is played.

```class Board
{
private \$cells = array(); //the 3x3 grid of cells

public function __construct()
{
\$row1 = array(" ", " ", " ");

\$row2 = array(" ", " ", " ");

\$row3 = array(" ", " ", " ");

\$this->cells = \$row1;

\$this->cells = \$row2;

\$this->cells = \$row3;
}

//display the board with moves made so far
public function display()
{
for(\$i = 0; \$i < 3; \$i++)
{
for(\$j = 0; \$j < 3; \$j++) { if(\$this->cells[\$i][\$j] == " ")
{
echo (\$i + 1).", ".(\$j + 1)."\t";
}
else
{
echo \$this->cells[\$i][\$j]."\t";
}
}

echo "\n\n";
}
}

//check if a cell is already occupied or not
public function checkAvailable(\$move)
{
\$i = \$move->getRow();
\$j = \$move->getColumn();

\$valid1 = ((\$i >= 1 && \$i <= 3) && (\$j >= 1 && \$j <= 3));

if(\$valid1)
{
\$valid2 = (\$this->cells[\$i - 1][\$j - 1] == " ");
}
else
{
\$valid2 = false;
}

\$valid3 = (\$valid1 && \$valid2);

\$move->setValid(\$valid3);

return \$move;
}

//put a cross or zero in a cell if the move is valid
public function markCell(\$move, \$mark)
{
if(\$move->getValid())
{
\$i = \$move->getRow();
\$j = \$move->getColumn();

\$this->cells[\$i - 1][\$j - 1] = \$mark;
}
else
{
echo "INVALID MOVE!\n\n";
}
}
}```

The Player class denotes the players who make moves on the board.

### Player:

Either of the two players.

```class Player
{
private \$playerNum;  //player 1 or 2
private \$playerMark; // '0' or 'X'
private \$winnerOrLoser;
private \$moves = array(); //list of moves made by player
private \$g; //the game being played

//getters and setters
public function setPlayerNum(\$num)
{
\$this->playerNum = \$num;
}

public function setPlayerMark(\$mark)
{
\$this->playerMark = \$mark;
}

public function setPlayerWinnerLoser(\$winnerOrLoser)
{
\$this->winnerOrLoser = \$winnerOrLoser;
}

public function getPlayerNum()
{
return \$this->playerNum;
}

public function getPlayerMark()
{
return \$this->playerMark;
}

public function getPlayerWinLose()
{
return \$this->winnerOrLoser;
}

public function getPlayerMoves()
{
return \$this->moves;
}

//the player can put x or 0 by choosing the cell (row and column)
public function makeMove(\$board, \$move)
{
\$move = \$board->checkAvailable(\$move);

\$mark = \$this->getPlayerMark();
\$board->markCell(\$move, \$mark);

if(\$move->getValid())
{

\$this->getGame()->setMovesTillNow();
}

\$board->display();
}

//if move is valid, add the move to the player's list of moves
{
\$this->moves[] = \$move;
}

public function setGame(\$game)
{
\$this->g = \$game;

}

public function getGame()
{
return \$this->g;
}
}```

The Game class is the functionality of the game with all its rules.

### Game:

The game being played.

```class Game
{
private \$whoseTurn; //player 1 or 2
private static \$movesTillNow = 0; //how many moves till now
private \$gameOver; //is game over yet?
private \$winningMoves; //list of combination of moves which can win the game
private \$winner = null;

private \$winning_moves;

public function __construct()
{
//winning moves

\$this->winning_moves = array();
//row wise

\$move01 = new Move();
\$move01->setRow(1);
\$move01->setColumn(1);

\$move02 = new Move();
\$move02->setRow(1);
\$move02->setColumn(2);

\$move03 = new Move();
\$move03->setRow(1);
\$move03->setColumn(3);

\$move0 = array(\$move01, \$move02, \$move03);

\$this->winning_moves = \$move0;

\$move11 = new Move();
\$move11->setRow(2);
\$move11->setColumn(1);

\$move12 = new Move();
\$move12->setRow(2);
\$move12->setColumn(2);

\$move13 = new Move();
\$move13->setRow(2);
\$move13->setColumn(3);

\$move1 = array(\$move11, \$move12, \$move13);

\$this->winning_moves = \$move1;

\$move21 = new Move();
\$move21->setRow(3);
\$move21->setColumn(1);

\$move22 = new Move();
\$move22->setRow(3);
\$move22->setColumn(2);

\$move23 = new Move();
\$move23->setRow(3);
\$move23->setColumn(3);

\$move2 = array(\$move21, \$move22, \$move23);

\$this->winning_moves = \$move2;

//column wise

\$move31 = new Move();
\$move31->setRow(1);
\$move31->setColumn(1);

\$move32 = new Move();
\$move32->setRow(2);
\$move32->setColumn(1);

\$move33 = new Move();
\$move33->setRow(3);
\$move33->setColumn(1);

\$move3 = array(\$move31, \$move32, \$move33);

\$this->winning_moves = \$move3;

\$move41 = new Move();
\$move41->setRow(1);
\$move41->setColumn(2);

\$move42 = new Move();
\$move42->setRow(2);
\$move42->setColumn(2);

\$move43 = new Move();
\$move43->setRow(3);
\$move43->setColumn(2);

\$move4 = array(\$move41, \$move42, \$move43);

\$this->winning_moves = \$move4;

\$move51 = new Move();
\$move51->setRow(1);
\$move51->setColumn(3);

\$move52 = new Move();
\$move52->setRow(2);
\$move52->setColumn(3);

\$move53 = new Move();
\$move53->setRow(3);
\$move53->setColumn(3);

\$move5 = array(\$move51, \$move52, \$move53);

\$this->winning_moves = \$move5;

//diagonally

\$move61 = new Move();
\$move61->setRow(1);
\$move61->setColumn(1);

\$move62 = new Move();
\$move62->setRow(2);
\$move62->setColumn(2);

\$move63 = new Move();
\$move63->setRow(3);
\$move63->setColumn(3);

\$move6 = array(\$move61, \$move62, \$move63);

\$this->winning_moves = \$move6;

\$move71 = new Move();
\$move71->setRow(1);
\$move71->setColumn(3);

\$move72 = new Move();
\$move72->setRow(2);
\$move72->setColumn(2);

\$move73 = new Move();
\$move73->setRow(3);
\$move73->setColumn(1);

\$move7 = array(\$move71, \$move72, \$move73);

\$this->winning_moves = \$move7;
}

//getters and setters
public function getWhoseTurn()
{
return \$this->whoseTurn;
}

public function setWhoseTurn(\$player)
{
\$this->whoseTurn = \$player->getPlayerNum();
}

public function getGameOver()
{
return \$this->gameOver;
}

public function setGameOver(\$gameOver)
{
\$this->gameOver = \$gameOver;
}

public function setMovesTillNow()
{
self::\$movesTillNow++;
}

public function getMovesTillNow()
{
return self::\$movesTillNow;
}

public function setWinner(\$winner)
{
\$this->winner = \$winner;
}

public function getWinner()
{
return \$this->winner;
}

//check if winning moves have been made by either player
public function checkWinningMoves(\$player)
{

\$movesTillNow = \$this->getMovesTillNow();

\$whoseTurn = \$this->getWhoseTurn();

\$playerMoves = \$player->getPlayerMoves();

\$moves = \$movesTillNow;

\$winning_moves1 = \$this->winning_moves;

switch(\$whoseTurn)
{
case 1:

if(\$moves < 5)
{
return false;
}
else
{

if(\$moves == 5)
{

\$player1_set1 = array(\$playerMoves, \$playerMoves, \$playerMoves);

for(\$i = 0; \$i < 8; \$i++) { if(\$this->checkSubset(\$player1_set1, \$winning_moves1[\$i]))
{
return true;
}
}

}

if(\$moves == 7)
{
\$player1_set2 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player1_set4 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player1_set7 = array(\$playerMoves, \$playerMoves, \$playerMoves);

for(\$i = 0; \$i < 8; \$i++) { if(\$this->checkSubset(\$player1_set2, \$winning_moves1[\$i]) ||
\$this->checkSubset(\$player1_set4, \$winning_moves1[\$i]) ||
\$this->checkSubset(\$player1_set7, \$winning_moves1[\$i]) )
{
return true;
}
}
}

if(\$moves == 9)
{

\$player1_set3 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player1_set5 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player1_set6 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player1_set8 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player1_set9 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player1_set10 = array(\$playerMoves, \$playerMoves, \$playerMoves);

for(\$i = 0; \$i < 8; \$i++) { if(\$this->checkSubset(\$player1_set3, \$winning_moves1[\$i]) ||
\$this->checkSubset(\$player1_set5, \$winning_moves1[\$i]) || \$this->checkSubset(\$player1_set6, \$winning_moves1[\$i]) ||
\$this->checkSubset(\$player1_set8, \$winning_moves1[\$i]) || \$this->checkSubset(\$player1_set9, \$winning_moves1[\$i]) ||
\$this->checkSubset(\$player1_set10, \$winning_moves1[\$i]))
{
return true;
}
}

}

return false;

}
break;
case 2:
if(\$moves < 6)
{
return false;
}
else
{
if(\$moves == 6)
{
\$player2_set1 = array(\$playerMoves, \$playerMoves, \$playerMoves);

for(\$i = 0; \$i < 8; \$i++) { if(\$this->checkSubset(\$player2_set1, \$winning_moves1[\$i]))
{
return true;
}
}
}

if(\$moves == 8)
{

\$player2_set2 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player2_set3 = array(\$playerMoves, \$playerMoves, \$playerMoves);

\$player2_set4 = array(\$playerMoves, \$playerMoves, \$playerMoves);

for(\$i = 0; \$i < 8; \$i++) { if(\$this->checkSubset(\$player2_set2, \$winning_moves1[\$i]) || \$this->checkSubset(\$player2_set3, \$winning_moves1[\$i]) ||
\$this->checkSubset(\$player2_set4, \$winning_moves1[\$i]))
{
return true;
}
}
}

return false;

}
break;
default:
return false;
}

}

//check if player moves match the winning sequence
private function checkSubset(\$subset, \$winning_row)
{

\$count = 0;
for(\$i = 0; \$i < 3; \$i++)
{

for(\$j = 0; \$j < 3; \$j++) { if(\$subset[\$i]->getRow() == \$winning_row[\$j]->getRow() && \$subset[\$i]->getColumn() == \$winning_row[\$j]->getColumn())
{
\$count++;
}
}

}
return (\$count == 3);

}
}```

### Putting it all together.

```<?php

require("includes/move.php");  //the Move class

require("includes/player.php"); //the Player class

require("includes/board.php"); //the Board class

require("includes/game.php"); //the Game class

function main() //where all the action is
{
\$game = new Game();

\$player1 = new Player();

\$player1->setPlayerNum(1);

\$player1->setPlayerMark('X');

\$player1->setGame(\$game);

\$player2 = new Player();

\$player2->setPlayerNum(2);

\$player2->setPlayerMark('0');

\$player2->setGame(\$game);

\$b = new Board();

\$b->display();

\$game->setWhoseTurn(\$player1);

\$game->setGameOver(false);

\$status = \$game->getGameOver();

do
{
\$movesNow = \$game->getMovesTillNow();

if(\$movesNow == 9)
{

if(\$game->getWinner() == null)
{
echo "TIE!";
break;
}

}

\$turn = \$game->getWhoseTurn();

echo "PLAYER \$turn:\n\n";

\$row = 0; \$column = 0;

echo "Enter row: ";

trim(fscanf(STDIN, "%d\n", \$row));

echo "Enter column: ";

trim(fscanf(STDIN, "%d\n", \$column));

echo "\n";

\$move = new Move();

\$move->setRow(\$row);

\$move->setColumn(\$column);

switch(\$turn)
{
case 1:
\$player1->makeMove(\$b, \$move);

if(\$game->checkWinningMoves(\$player1))
{

\$game->setWinner(\$player1);

echo "PLAYER 1 WINS!\n\n";

\$game->setGameOver(true);
}
else
{
if(\$move->getValid())
{
\$movesNow = \$game->getMovesTillNow();

echo "MOVE NUMBER: \$movesNow\n\n";

\$game->setWhoseTurn(\$player2);

}
}
break;
case 2:
\$player2->makeMove(\$b, \$move);

if(\$game->checkWinningMoves(\$player2))
{

\$game->setWinner(\$player2);

echo "PLAYER 2 WINS!\n\n";

\$game->setGameOver(true);
}
else
{
if(\$move->getValid())
{
\$movesNow = \$game->getMovesTillNow();

echo "MOVE NUMBER: \$movesNow\n\n";

\$game->setWhoseTurn(\$player1);
}
}
break;
default:
echo "ERROR!\n\n";
break;
}

\$status = \$game->getGameOver();

}while(!\$status);

}

main(); //invoking the game play

?>```

This implementation is not perfect by any means. Any suggestions for improvement are welcome. Screenshots given below:

### Java Version

Here is an elementary tic-tac-toe or noughts and crosses game made in Java.
It can be played via the java interpreter from the command line. In the game of tic-tac-toe there is a 3X3 grid or board.The game is for two players. The players take turns to mark the cells of the grid with their mark which is a zero or a cross.

The first player to complete a vertical, horizontal or diagonal triad of zeroes or crosses, wins.

The PHP version can be found here

Player makes Move on Board to play Game. So the classes are:

1. Move
2. Board
3. Player
4. Game
5. TicTacToe

There is one new class “TicTacToe” because Java needs a main class having the “main” method implemented in it.

The first four classes are in the package named “com.tictactoe.components” , while the main class is in the package named “com.tictactoe”.

First we discuss the move class:

### Move:

Move made by either of the players.

```package com.tictactoe.components;

/**
*
* @author pratyush
*/
public class Move {

private int row, column;
private boolean isValid;

public int getRow() {
return row;
}

public void setRow(int row) {
this.row = row;
}

public int getColumn() {
return column;
}

public void setColumn(int column) {
this.column = column;
}

public boolean isIsValid() {
return isValid;
}

public void setIsValid(boolean isValid) {
this.isValid = isValid;
}

}```

Then comes the Board class where the moves are made.

### Board:

The board on which the game is played.

```package com.tictactoe.components;

/**
*
* @author pratyush
*/
public class Board{

private static char[][] cells;

public Board()
{
cells = new char;

cells = new char[]{' ', ' ', ' '};

cells = new char[]{' ', ' ', ' '};

cells = new char[]{' ', ' ', ' '};
}

public void display()
{
for(int i = 0; i < 3; i++)
{
for(int j = 0; j < 3; j++) {

if(cells[i][j] == ' ') {

System.out.print((i+1)+", "+(j+1)+"\t");

} else {

System.out.print(cells[i][j]+"\t");

}

} System.out.print("\n\n");

}

}

public Move checkAvailable(Move move) {

int i = move.getRow();

int j = move.getColumn();

boolean boundValid = ((i >= 1 && i<= 3) && ( j >= 1 && j <= 3));

boolean charValid = false;

if(boundValid)
{
charValid = (cells[i - 1][j - 1] == ' ');
}

boolean netValid = (boundValid && charValid);

move.setIsValid(netValid);

return move;
}

public void markCell(Move move, char mark)
{
if(move.isIsValid())
{
int i = move.getRow();

int j = move.getColumn();

cells[i - 1][j - 1] = mark;
}
else
{
System.out.println("INVALID MOVE!\n\n");
}
}

}```

The Player class denotes the players who make moves on the board.

### Player:

Either of the two players.

```package com.tictactoe.components;

import java.util.ArrayList;
/**
*
* @author pratyush
*/
public class Player {

private int playerNum;
private char playerMark;
private int winnerOrLoser;
private Game g;

private ArrayList<Move> moves = new ArrayList<Move>();

public int getPlayerNum() {
return playerNum;
}

public void setPlayerNum(int playerNum) {
this.playerNum = playerNum;
}

public char getPlayerMark() {
return playerMark;
}

public void setPlayerMark(char playerMark) {
this.playerMark = playerMark;
}

public int getWinnerOrLoser() {
return winnerOrLoser;
}

public void setWinnerOrLoser(int winnerOrLoser) {
this.winnerOrLoser = winnerOrLoser;
}

public Game getGame() {
return g;
}

public void setGame(Game g) {
this.g = g;
}

public ArrayList getMoves() {
return moves;
}

}

public void makeMove(Board board, Move move)
{
move = board.checkAvailable(move);

char mark = this.getPlayerMark();

board.markCell(move, mark);

if(move.isIsValid())
{
Game.setMovesTillNow();
}

board.display();
}

}```

The Game class is the functionality of the game with all its rules.

### Game:

The game being played.

```package com.tictactoe.components;

import java.util.ArrayList;
/**
*
* @author pratyush
*/
public class Game{

private int whoseTurn;
private static int movesTillNow = 0;
private boolean gameOver;

private Player winner = null;

Move[][] winning_moves;

public Game()
{

winning_moves = new Move;

//top row
Move move01 = new Move();
move01.setRow(1);
move01.setColumn(1);

Move move02 = new Move();
move02.setRow(1);
move02.setColumn(2);

Move move03 = new Move();
move03.setRow(1);
move03.setColumn(3);

Move[] move0;

move0 = new Move[]{move01, move02, move03};

winning_moves = move0;

//middle row

Move move11 = new Move();
move11.setRow(2);
move11.setColumn(1);

Move move12 = new Move();
move12.setRow(2);
move12.setColumn(2);

Move move13 = new Move();
move13.setRow(2);
move13.setColumn(3);

Move[] move1;

move1 = new Move[]{move11, move12, move13};

winning_moves = move1;

//bottom row

Move move21 = new Move();
move21.setRow(3);
move21.setColumn(1);

Move move22 = new Move();
move22.setRow(3);
move22.setColumn(2);

Move move23 = new Move();
move23.setRow(3);
move23.setColumn(3);

Move[] move2;

move2 = new Move[]{move21, move22, move23};

winning_moves = move2;

//column wise

//column 1

Move move31 = new Move();
move31.setRow(1);
move31.setColumn(1);

Move move32 = new Move();
move32.setRow(2);
move32.setColumn(1);

Move move33 = new Move();
move33.setRow(3);
move33.setColumn(1);

Move[] move3;

move3 = new Move[]{move31, move32, move33};

winning_moves = move3;

//column 2

Move move41 = new Move();
move41.setRow(1);
move41.setColumn(2);

Move move42 = new Move();
move42.setRow(2);
move42.setColumn(2);

Move move43 = new Move();
move43.setRow(3);
move43.setColumn(2);

Move[] move4;

move4 = new Move[]{move41, move42, move43};

winning_moves = move4;

//column 3

Move move51 = new Move();
move51.setRow(1);
move51.setColumn(3);

Move move52 = new Move();
move52.setRow(2);
move52.setColumn(3);

Move move53 = new Move();
move53.setRow(3);
move53.setColumn(3);

Move[] move5;

move5 = new Move[]{move51, move52, move53};

winning_moves = move5;

//diagonals

//diagonal 1

Move move61 = new Move();
move61.setRow(1);
move61.setColumn(1);

Move move62 = new Move();
move62.setRow(2);
move62.setColumn(2);

Move move63 = new Move();
move63.setRow(3);
move63.setColumn(3);

Move[] move6;

move6 = new Move[]{move61, move62, move63};

winning_moves = move6;

//diagonal 2

Move move71 = new Move();
move71.setRow(1);
move71.setColumn(3);

Move move72 = new Move();
move72.setRow(2);
move72.setColumn(2);

Move move73 = new Move();
move73.setRow(3);
move73.setColumn(1);

Move[] move7;

move7 = new Move[]{move71, move72, move73};

winning_moves = move7;

}

public int getWhoseTurn() {
return whoseTurn;
}

public void setWhoseTurn(Player player) {
this.whoseTurn = player.getPlayerNum();
}

public static int getMovesTillNow() {
return movesTillNow;
}

public static void setMovesTillNow() {
Game.movesTillNow++;
}

public boolean isGameOver() {
return gameOver;
}

public void setGameOver(boolean gameOver) {
this.gameOver = gameOver;
}

public Player getWinner() {
return winner;
}

public void setWinner(Player winner) {
this.winner = winner;
}

private boolean checkSubset(Move[] subset, Move[] winning_row)
{
int count = 0;

for(int i = 0;i < 3; i++)
{
for(int j = 0; j< 3; j++)
{
if(subset[i].getRow() == winning_row[j].getRow() && subset[i].getColumn() == winning_row[j].getColumn())
{
count++;
}
}
}

return (count == 3);
}

//check the winning moves

public boolean checkWinningMoves(Player player)
{

/*****check winning moves*****/

int movesTillNow = Game.getMovesTillNow();

int whoseTurn = this.getWhoseTurn();

ArrayList<Move> playerMoves = player.getMoves();

int moves = movesTillNow;

Move[][] winning_moves1 = this.winning_moves;

switch(whoseTurn)
{
case 1:

if(moves < 5)
{
return false;
}
else
{
if(moves == 5)
{
Move[] player1_set1 = new Move[]{playerMoves.get(0), playerMoves.get(1), playerMoves.get(2)};

for(int i = 0; i< 8; i++)
{
if(checkSubset(player1_set1, winning_moves1[i]))
{
return true;
}
}
}

/******/

if(moves == 7)
{
Move[] player1_set2 = new Move[]{playerMoves.get(0), playerMoves.get(1), playerMoves.get(3)};

Move[] player1_set4 = new Move[]{playerMoves.get(0), playerMoves.get(2), playerMoves.get(3)};

Move[] player1_set7 = new Move[]{playerMoves.get(1), playerMoves.get(2), playerMoves.get(3)};

for(int i = 0; i < 8; i++)
{
if(checkSubset(player1_set2, winning_moves1[i]) ||
checkSubset(player1_set4, winning_moves1[i]) ||
checkSubset(player1_set7, winning_moves1[i]) )
{
return true;
}
}
}

if(moves == 9)
{
Move[] player1_set3 = new Move[]{playerMoves.get(0), playerMoves.get(1), playerMoves.get(4)};

Move[] player1_set5 = new Move[]{playerMoves.get(0), playerMoves.get(2), playerMoves.get(4)};

Move[] player1_set6 = new Move[]{playerMoves.get(0), playerMoves.get(3), playerMoves.get(4)};

Move[] player1_set8 = new Move[]{playerMoves.get(1), playerMoves.get(2), playerMoves.get(4)};

Move[] player1_set9 = new Move[]{playerMoves.get(1), playerMoves.get(3), playerMoves.get(4)};

Move[] player1_set10 = new Move[]{playerMoves.get(2), playerMoves.get(3), playerMoves.get(4)};

for(int i = 0; i < 8; i++)
{
if(checkSubset(player1_set3, winning_moves1[i]) ||
checkSubset(player1_set5, winning_moves1[i]) || checkSubset(player1_set6, winning_moves1[i]) ||
checkSubset(player1_set8, winning_moves1[i]) || checkSubset(player1_set9, winning_moves1[i]) ||
checkSubset(player1_set10, winning_moves1[i]))
{
return true;
}
}
}

return false;
}

case 2:
/******/
if(moves < 6)
{
return false;
}
else
{
/*******/
if(moves == 6)
{
Move[] player2_set1 = new Move[]{playerMoves.get(0), playerMoves.get(1), playerMoves.get(2)};

for(int i = 0; i < 8; i++)
{
if(checkSubset(player2_set1, winning_moves1[i]))
{
return true;
}
}
}

if(moves == 8)
{
Move[] player2_set2 = new Move[]{playerMoves.get(0), playerMoves.get(1), playerMoves.get(3)};

Move[] player2_set3 = new Move[]{playerMoves.get(0), playerMoves.get(2), playerMoves.get(3)};

Move[] player2_set4 = new Move[]{playerMoves.get(1), playerMoves.get(2), playerMoves.get(3)};

for(int i = 0; i < 8; i++)
{
if(checkSubset(player2_set2, winning_moves1[i]) || checkSubset(player2_set3, winning_moves1[i]) ||
checkSubset(player2_set4, winning_moves1[i]))
{
return true;
}
}
}

return false;
}
default:
return false;
}
}

}
```

Finally, the main class:

### TicTacToe

The class containing the entry point of the program also called the main class.

```package com.tictactoe;

import com.tictactoe.components.*;
import java.util.Scanner;
/**
*
* @author pratyush
*/
public class TicTacToe{

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here

Game game = new Game();

Player player1 = new Player();

player1.setPlayerNum(1);

player1.setPlayerMark('X');

player1.setGame(game);

Player player2 = new Player();

player2.setPlayerNum(2);

player2.setPlayerMark('0');

player2.setGame(game);

Board board = new Board();

board.display();

/*******/

game.setWhoseTurn(player1);

game.setGameOver(false);

boolean status = game.isGameOver();

Scanner sc = new Scanner(System.in);

do
{
int movesNow = Game.getMovesTillNow();

if(movesNow == 9)
{
if(game.getWinner() == null)
{
System.out.println("TIE!\n");
break;
}
}

int turn = game.getWhoseTurn();

System.out.println("PLAYER "+turn+"\n");

int row = 0;
int column = 0;

boolean invalid = true;

while(invalid)
{
//code to handle invalid moves. players cannot proceed without valid input
try{
System.out.println("Enter row: ");

String str = sc.next();

if(!str.equals(""))
{

row = Integer.parseInt(str);
invalid = false;

}
else
{
continue;
}
}
catch(NumberFormatException n)
{
System.out.println("INVALID ROW!");
invalid = true;
}
catch(InputMismatchException i)
{
System.out.println("INVALID ROW!");
invalid = true;
}
}

invalid = true;

while(invalid)
{
/*code to handle invalid moves. players cannot proceed without valid input*/

try{
System.out.println("Enter column: ");

String str = sc.next();

if(!str.equals(""))
{

column = Integer.parseInt(str);
invalid = false;

}
else
{
continue;
}
}
catch(NumberFormatException n)
{
System.out.println("INVALID COLUMN!");
invalid = true;
}
catch(InputMismatchException i)
{
System.out.println("INVALID COLUMN!");
invalid = true;
}
}

/**/

Move move = new Move();

move.setRow(row);

move.setColumn(column);

switch(turn)
{
case 1:
player1.makeMove(board, move);

if(game.checkWinningMoves(player1))
{
game.setWinner(player1);

System.out.println("PLAYER 1 WINS!");

game.setGameOver(true);
}
else
{
if(move.isIsValid())
{
movesNow = Game.getMovesTillNow();

System.out.println("MOVE NUMBER "+movesNow+"\n");

game.setWhoseTurn(player2);
}
}
break;
case 2:
player2.makeMove(board, move);

if(game.checkWinningMoves(player2))
{
game.setWinner(player2);

System.out.println("PLAYER 2 WINS!");

game.setGameOver(true);
}
else
{
if(move.isIsValid())
{
movesNow = Game.getMovesTillNow();

System.out.println("MOVE NUMBER "+movesNow+"\n");

game.setWhoseTurn(player1);
}
}
break;
default:
System.out.println("ERROR!\n");
break;
}

status = game.isGameOver();
}
while(!status);

}

}```

Copy, Compile, Run and ENJOY!

### C# version

Here is an elementary tic-tac-toe or noughts and crosses game I made in C#, arguably the most popular language of the DotNET platform. It can be played from the command line after compiling it as an executable. In the game of tic-tac-toe there is a 3X3 grid or board.The game is for two players. The players 1 and 2 take turns to mark the cells of the grid with their mark which is a zero or a cross.

The first player to complete a vertical, horizontal or diagonal triad of zeroes or crosses, wins.

The PHP version can be found here

Player makes Move on Board to play Game. So the classes are:

1. Move
2. Board
3. Player
4. Game
5. TicTacToe

There is one new class “TicTacToe” because C# needs a main class having the “Main” method implemented in it.

The classes are in the namespace called “TicTacToeDotNet”.

First we discuss the move class:

### Move:

Move made by either of the players.

```using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TicTacToeDotNet
{
public class Move
{

private int row, column;
private bool isValid;

public int getRow()
{
return row;
}

public void setRow(int row)
{
this.row = row;
}

public int getColumn()
{
return column;
}

public void setColumn(int column)
{
this.column = column;
}

public bool isIsValid()
{
return isValid;
}

public void setIsValid(bool isValid)
{
this.isValid = isValid;
}

}
}```

Then comes the Board class where the moves are made.

### Board:

The board on which the game is played.

```using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TicTacToeDotNet
{
public class Board
{

private static char[][] cells;

public Board()
{
cells = new char[];

cells = new char[] { ' ', ' ', ' ' };

cells = new char[] { ' ', ' ', ' ' };

cells = new char[] { ' ', ' ', ' ' };
}

public void display()
{
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++) {

if (cells[i][j] == ' ') {

Console.Write((i + 1) + ", " + (j + 1) + "\t");

} else {

Console.Write(cells[i][j] + "\t");

}

} Console.Write("\n\n");

}

}

public Move checkAvailable(Move move) {

int i = move.getRow();

int j = move.getColumn();

bool boundValid = ((i >= 1 && i <= 3) && (j >= 1 && j <= 3));

bool charValid = false;

if (boundValid)
{
charValid = (cells[i - 1][j - 1] == ' ');
}

bool netValid = (boundValid && charValid);

move.setIsValid(netValid);

return move;
}

public void markCell(Move move, char mark)
{
if (move.isIsValid())
{
int i = move.getRow();

int j = move.getColumn();

cells[i - 1][j - 1] = mark;
}
else
{
Console.Write("INVALID MOVE!\n\n");
}
}

}

}```

The Player class denotes the players who make moves on the board.

### Player:

Either of the two players.

```using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TicTacToeDotNet
{
public class Player
{

private int playerNum;
private char playerMark;
private int winnerOrLoser;
private Game g;

private List moves = new List();

public int getPlayerNum()
{
return playerNum;
}

public void setPlayerNum(int playerNum)
{
this.playerNum = playerNum;
}

public char getPlayerMark()
{
return playerMark;
}

public void setPlayerMark(char playerMark)
{
this.playerMark = playerMark;
}

public int getWinnerOrLoser()
{
return winnerOrLoser;
}

public void setWinnerOrLoser(int winnerOrLoser)
{
this.winnerOrLoser = winnerOrLoser;
}

public Game getGame()
{
return g;
}

public void setGame(Game g)
{
this.g = g;
}

public List getMoves()
{
return moves;
}

{

}

public void makeMove(Board board, Move move)
{
move = board.checkAvailable(move);

char mark = this.getPlayerMark();

board.markCell(move, mark);

if (move.isIsValid())
{
Game.setMovesTillNow();
}

board.display();
}

}
}```

The Game class is the functionality of the game with all its rules.

### Game:

The game being played.

```using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TicTacToeDotNet
{
public class Game
{

private int whoseTurn;
private static int movesTillNow = 0;
private bool gameOver;

private Player winner = null;

Move[][] winning_moves;

public Game()
{

winning_moves = new Move[];

//top row
Move move01 = new Move();
move01.setRow(1);
move01.setColumn(1);

Move move02 = new Move();
move02.setRow(1);
move02.setColumn(2);

Move move03 = new Move();
move03.setRow(1);
move03.setColumn(3);

Move[] move0;

move0 = new Move[] { move01, move02, move03 };

winning_moves = move0;

//middle row

Move move11 = new Move();
move11.setRow(2);
move11.setColumn(1);

Move move12 = new Move();
move12.setRow(2);
move12.setColumn(2);

Move move13 = new Move();
move13.setRow(2);
move13.setColumn(3);

Move[] move1;

move1 = new Move[] { move11, move12, move13 };

winning_moves = move1;

//bottom row

Move move21 = new Move();
move21.setRow(3);
move21.setColumn(1);

Move move22 = new Move();
move22.setRow(3);
move22.setColumn(2);

Move move23 = new Move();
move23.setRow(3);
move23.setColumn(3);

Move[] move2;

move2 = new Move[] { move21, move22, move23 };

winning_moves = move2;

//column wise

//column 1

Move move31 = new Move();
move31.setRow(1);
move31.setColumn(1);

Move move32 = new Move();
move32.setRow(2);
move32.setColumn(1);

Move move33 = new Move();
move33.setRow(3);
move33.setColumn(1);

Move[] move3;

move3 = new Move[] { move31, move32, move33 };

winning_moves = move3;

//column 2

Move move41 = new Move();
move41.setRow(1);
move41.setColumn(2);

Move move42 = new Move();
move42.setRow(2);
move42.setColumn(2);

Move move43 = new Move();
move43.setRow(3);
move43.setColumn(2);

Move[] move4;

move4 = new Move[] { move41, move42, move43 };

winning_moves = move4;

//column 3

Move move51 = new Move();
move51.setRow(1);
move51.setColumn(3);

Move move52 = new Move();
move52.setRow(2);
move52.setColumn(3);

Move move53 = new Move();
move53.setRow(3);
move53.setColumn(3);

Move[] move5;

move5 = new Move[] { move51, move52, move53 };

winning_moves = move5;

//diagonals

//diagonal 1

Move move61 = new Move();
move61.setRow(1);
move61.setColumn(1);

Move move62 = new Move();
move62.setRow(2);
move62.setColumn(2);

Move move63 = new Move();
move63.setRow(3);
move63.setColumn(3);

Move[] move6;

move6 = new Move[] { move61, move62, move63 };

winning_moves = move6;

//diagonal 2

Move move71 = new Move();
move71.setRow(1);
move71.setColumn(3);

Move move72 = new Move();
move72.setRow(2);
move72.setColumn(2);

Move move73 = new Move();
move73.setRow(3);
move73.setColumn(1);

Move[] move7;

move7 = new Move[] { move71, move72, move73 };

winning_moves = move7;

}

public int getWhoseTurn()
{
return whoseTurn;
}

public void setWhoseTurn(Player player)
{
this.whoseTurn = player.getPlayerNum();
}

public static int getMovesTillNow()
{
return movesTillNow;
}

public static void setMovesTillNow()
{
Game.movesTillNow++;
}

public bool isGameOver()
{
return gameOver;
}

public void setGameOver(bool gameOver)
{
this.gameOver = gameOver;
}

public Player getWinner()
{
return winner;
}

public void setWinner(Player winner)
{
this.winner = winner;
}

private bool checkSubset(Move[] subset, Move[] winning_row)
{
int count = 0;

for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
{
if (subset[i].getRow() == winning_row[j].getRow() && subset[i].getColumn() == winning_row[j].getColumn())
{
count++;
}
}
}

return (count == 3);
}

//check the winning moves

public bool checkWinningMoves(Player player)
{

/*****check winning moves*****/

int movesTillNow = Game.getMovesTillNow();

int whoseTurn = this.getWhoseTurn();

Move[] playerMoves = player.getMoves().ToArray();

int moves = movesTillNow;

Move[][] winning_moves1 = this.winning_moves;

switch (whoseTurn)
{
case 1:

if (moves < 5)
{
return false;
}
else
{
if (moves == 5)
{
Move[] player1_set1 = new Move[] { playerMoves, playerMoves, playerMoves };

for (int i = 0; i < 8; i++)
{
if (checkSubset(player1_set1, winning_moves1[i]))
{
return true;
}
}
}

/******/

if (moves == 7)
{
Move[] player1_set2 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player1_set4 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player1_set7 = new Move[] { playerMoves, playerMoves, playerMoves };

for (int i = 0; i < 8; i++)
{
if (checkSubset(player1_set2, winning_moves1[i]) ||
checkSubset(player1_set4, winning_moves1[i]) ||
checkSubset(player1_set7, winning_moves1[i]))
{
return true;
}
}
}

if (moves == 9)
{
Move[] player1_set3 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player1_set5 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player1_set6 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player1_set8 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player1_set9 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player1_set10 = new Move[] { playerMoves, playerMoves, playerMoves };

for (int i = 0; i < 8; i++)
{
if (checkSubset(player1_set3, winning_moves1[i]) ||
checkSubset(player1_set5, winning_moves1[i]) || checkSubset(player1_set6, winning_moves1[i]) ||
checkSubset(player1_set8, winning_moves1[i]) || checkSubset(player1_set9, winning_moves1[i]) ||
checkSubset(player1_set10, winning_moves1[i]))
{
return true;
}
}
}

return false;
}

case 2:
/******/
if (moves < 6)
{
return false;
}
else
{
/*******/
if (moves == 6)
{
Move[] player2_set1 = new Move[] { playerMoves, playerMoves, playerMoves };

for (int i = 0; i < 8; i++)
{
if (checkSubset(player2_set1, winning_moves1[i]))
{
return true;
}
}
}

if (moves == 8)
{
Move[] player2_set2 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player2_set3 = new Move[] { playerMoves, playerMoves, playerMoves };

Move[] player2_set4 = new Move[] { playerMoves, playerMoves, playerMoves };

for (int i = 0; i < 8; i++)
{
if (checkSubset(player2_set2, winning_moves1[i]) || checkSubset(player2_set3, winning_moves1[i]) ||
checkSubset(player2_set4, winning_moves1[i]))
{
return true;
}
}
}

return false;
}
default:
return false;
}
}

}
}```

Finally, the main class:

### TicTacToe

The class containing the entry point of the program also called the main class.

```using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace TicTacToeDotNet
{
public class TicTacToe
{

/**
* @param args the command line arguments
*/
public static void Main(string[] args)
{
// TODO code application logic here

Game game = new Game();

Player player1 = new Player();

player1.setPlayerNum(1);

player1.setPlayerMark('X');

player1.setGame(game);

Player player2 = new Player();

player2.setPlayerNum(2);

player2.setPlayerMark('0');

player2.setGame(game);

Board board = new Board();

board.display();

/*******/

game.setWhoseTurn(player1);

game.setGameOver(false);

bool status = game.isGameOver();

//

do
{
int movesNow = Game.getMovesTillNow();

if (movesNow == 9)
{
if (game.getWinner() == null)
{
Console.WriteLine("TIE!\n");
break;
}
}

int turn = game.getWhoseTurn();

Console.WriteLine("PLAYER " + turn + "\n");

int row = 0;
int column = 0;

bool invalid = true;

while (invalid)
{
//code to handle invalid moves. players cannot proceed without valid input
try
{
Console.WriteLine("Enter row: ");

if (!(str == ""))
{

row = Convert.ToInt32(str);
invalid = false;

}
else
{
continue;
}
}
catch (FormatException n)
{
Console.WriteLine("INVALID ROW!");
invalid = true;
}
/**/
}

invalid = true;

while (invalid)
{
/*code to handle invalid moves. players cannot proceed without valid input*/

try
{
Console.WriteLine("Enter column: ");

if (!(str == ""))
{

column = Convert.ToInt32(str);
invalid = false;

}
else
{
continue;
}
}
catch (FormatException n)
{
Console.WriteLine("INVALID COLUMN!");
invalid = true;
}
/**/
}

/**/

Move move = new Move();

move.setRow(row);

move.setColumn(column);

switch (turn)
{
case 1:
player1.makeMove(board, move);

if (game.checkWinningMoves(player1))
{
game.setWinner(player1);

Console.WriteLine("PLAYER 1 WINS!");

game.setGameOver(true);
}
else
{
if (move.isIsValid())
{
movesNow = Game.getMovesTillNow();

Console.WriteLine("MOVE NUMBER " + movesNow + "\n");

game.setWhoseTurn(player2);
}
}
break;
case 2:
player2.makeMove(board, move);

if (game.checkWinningMoves(player2))
{
game.setWinner(player2);

Console.WriteLine("PLAYER 2 WINS!");

game.setGameOver(true);
}
else
{
if (move.isIsValid())
{
movesNow = Game.getMovesTillNow();

Console.WriteLine("MOVE NUMBER " + movesNow + "\n");

game.setWhoseTurn(player1);
}
}
break;
default:
Console.WriteLine("ERROR!\n");
break;
}

status = game.isGameOver();
}
while (!status);