Question

Writing a code in C# console app

Create class TicTacToe that will enable you to write a complete app to play the game of Tic-Tac-Toe. The class contains a private 3-by-3 rectangular array of integers. The constructor should initialize the empty board to all 0s. Allow two human players. Wherever the first player moves, place a 1 in the specified square, and place a 2 wherever the second player moves. Each move must be to an empty square. After each move, determine whether the game has been won and whether it’s a draw.

Answer 1

using System;
using System.Threading;
namespace TIC_TAC_TOE
{
    class Program
    {
        static char[] arr = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
        static int player = 1; //By default player 1 is set
        static int choice;
        static int flag = 0;
        static void Main(string[] args)
        {
            do
            {
                Console.Clear();
                Console.WriteLine("Player1:X and Player2:O");
                Console.WriteLine("\n");
                if (player % 2 == 0)//checking the chance of the player
                {
                    Console.WriteLine("Player 2 Chance");
                }
                else
                {
                    Console.WriteLine("Player 1 Chance");
                }
                Console.WriteLine("\n");
                Board();
                choice = int.Parse(Console.ReadLine());
                if (arr[choice] != 'X' && arr[choice] != 'O')
                {
                    if (player % 2 == 0) //if chance is of player 2 then mark O else mark X
                    {
                        arr[choice] = 'O';
                        player++;
                    }
                    else
                    {
                       arr[choice] = 'X';
                        player++;
                    }
                }

                else
                {
                    Console.WriteLine("Sorry the row {0} is already marked with {1}", choice, arr[choice]);
                    Console.WriteLine("\n");
                   Console.WriteLine("Please wait 2 second board is loading again.....");
                    Thread.Sleep(2000);
                }
                flag = CheckWin();// calling of check win
            } while (flag != 1 && flag != -1);

            Console.Clear();
            Board();
            if (flag == 1)
            {
                Console.WriteLine("Player {0} has won", (player % 2) + 1);
            }
            else
            {
                Console.WriteLine("Draw");
            }
            Console.ReadLine();
        }
        private static void Board()
        {
            Console.WriteLine("     |     |      ");
            Console.WriteLine(" {0} | {1} | {2}", arr[1], arr[2], arr[3]);
            Console.WriteLine("_____|_____|_____ ");
            Console.WriteLine("     |     |      ");
            Console.WriteLine(" {0} | {1} | {2}", arr[4], arr[5], arr[6]);
            Console.WriteLine("_____|_____|_____ ");
            Console.WriteLine("     |     |      ");
            Console.WriteLine(" {0} | {1} | {2}", arr[7], arr[8], arr[9]);
            Console.WriteLine("     |     |      ");

        }
        private static int CheckWin()

        {
          
            if (arr[1] == arr[2] && arr[2] == arr[3])
            {
                return 1;
}

            else if (arr[4] == arr[5] && arr[5] == arr[6])
            {
                return 1;

            }
            else if (arr[6] == arr[7] && arr[7] == arr[8])

            {

                return 1;

            }          

            else if (arr[1] == arr[4] && arr[4] == arr[7])

            {

                return 1;

            }

          

            else if (arr[2] == arr[5] && arr[5] == arr[8])

            {

                return 1;

            }

            else if (arr[3] == arr[6] && arr[6] == arr[9])

            {

                return 1;

            }

            #endregion

            else if (arr[1] == arr[5] && arr[5] == arr[9])

            {

                return 1;

            }

            else if (arr[3] == arr[5] && arr[5] == arr[7])

            {

                return 1;

            }
         
            else if (arr[1] != '1' && arr[2] != '2' && arr[3] != '3' && arr[4] != '4' && arr[5] != '5' && arr[6] != '6' && arr[7] != '7' && arr[8] != '8' && arr[9] != '9')

            {

                return -1;

            }

            else

            {

                return 0;

            }

        }

    }

}