gistfile1.cs

using System;

namespace tic_tac_toe
{
    class Program
    {
        public static int EMPTY = 0;
        public static int Xchar=1;
        public static int Ochar = 2;
        int[,] matrix = new int[3, 3];
        char[] sym = {' ','X','O' };
        void initialize_game()
        {
            for (int i = 0; i < matrix.GetLength(0); i++)
                for (int j = 0; j < matrix.GetLength(1); j++)
                    matrix[i, j] = EMPTY;
        }
        void draw()
        {
            for (int i = 0; i < matrix.GetLength(0); i++){
                Console.WriteLine("{0}|{1}|{2}",
                    sym[matrix[i, 0]], 
                    sym[matrix[i, 1]], 
                    sym[matrix[i, 2]]);
                if (i!=2) Console.WriteLine("-|-|-");
            }
        }
        public void get_player_move()
        {
            Console.WriteLine("Enter X,Y coordinates for your move: ");
            int i = int.Parse(Console.ReadLine());
            int j = int.Parse(Console.ReadLine());
            i--; j--; 
            matrix[i, j] = Xchar;
        }
        static void Main(string[] args)
        {
            Program p = new Program();
            p.initialize_game();
            p.draw();
            p.get_player_move();
            p.draw();
        }
    }
}