Question

Make a Tic Tac Toe game for 2 players to play using 2D arrays and classes. Do not add more #include functions other than the ones listed (such as #include <stdio.h> etc).
Using the tictactoeGame class, write a main program that uses a tictactoeGame to implement a game in which two players (you and a friend) take turns placing X’s and O’s onto the board. After each turn, the current board configuration should be displayed, and once a player connects three of a kind, the game should end declaring that player the winner.

class tictactoeGame
{
    public:

        char boardConfig[3][3];   // two dimensional array stores current board configuration  

    // Constructor:
        // set boardConfig[i][j] to be ' ' (the space character)
        // for 0<= i <= 2, 0<= j <= 2
        tictactoeGame()
        {
           //fill this in
        }

   //put an 'X' character at the given location        
        bool placeX(int x, int y)
        {
           //fill this in
        }

   //put an 'O' character at the given location       
        bool placeO(int x, int y)
        {
           //fill this in
        }

   //set all positions to character ' '.
        void clear()
        {
           //fill this in
        }

        // Return true if there are 3 'X' marks placed in a single
        // column, row, or diagnol. Return false otherwise.
        bool xWins()
        {
           //fill this in
        }

        // Return true if there are 3 'O' marks placed in a single
        // column, row, or diagnol. Return false otherwise.    
        bool oWins()
        {
           //fill this in
        }

        // Return true if there are either 3 'X' marks or 3 'O' marks
        // placed in a single column, row, or diagnol, or if the board is full.
    // Return false otherwise.
        bool gameOver()
        {
           //fill this in
        }

        // cout a nice looking picture of the board configuration
        void display()
        {
           //fill this in
        }

};

int main()
{
return 0;
}

Answer 1

public class tictactoegame {     private static int state;     private static char[][] board;          public static void main(String[] args) {         //variables and initializing         board = new char[3][3];         initializeArray();                  //start playing         while(!won()) {             move();         }         if(won()) {             if(state%2 == 0) System.out.println("Player 1 won");             else System.out.println("Player 2 won");         }     }          //method to initialize 3x3 2D array     public static char[][] initializeArray(){         state = 0;         for(int i=0; i<=2; i++) {             for(int j=0; j<=2; j++) {                 board[i][j] = '-';             }         }                  return board;     }          public static boolean isBoardFull() {         for(int i = 0; i<=2; i++) {             for(int j = 0; j<=2; j++) {                 if(board[i][j] == '-') return false;             }         }         return true;     }               //method to determine the move the current player entered         //validate the move in this method     public static int move() {         Scanner sc = new Scanner(System.in);         while(!isBoardFull() && state!=9) {             System.out.println("Player, enter a row");             int row = sc.nextInt();             System.out.println("Player, enter a col");             int col = sc.nextInt();             if(board[row][col] == 'x' || board[row][col] == 'o') {                 System.out.println("Position filled. Try again");                 row = sc.nextInt();                 col = sc.nextInt();             }             if(board[row][col] == '-') {                 if(state%2==0) {                     board[row][col] = 'x';                 }                 else board[row][col] = 'o';             }             printBoard();             state++;         }         if(draw()) System.out.println("Game ended in draw");         sc.close();         return state;     }              //method to update the game immediately if the game has been won     public static boolean won() {         boolean won = false;         if(draw()) System.out.println("Game Over - No one wins");         for(int i=0; i<3; i++) {             if(board[i][0] == board[i][1] && board[i][1] == board[i][2]) {                 System.out.println("We have a winner!");                 if(board[i][0] == 'x') System.out.println("Player 1 wins");                 else System.out.println("Player 2 wins");                 won = true;             }         }         for(int i=0; i<3; i++) {             if(board[0][i] == board[1][i] && board[2][i] == board[1][i]) {                 System.out.println("We have a winner!");                 if(board[0][i] == 'x') System.out.println("Player 1 wins");                 else System.out.println("Player 2 wins");                 won = true;             }         }                  if(board[0][0]==board[1][1] && board[1][1] == board[2][2]) {             System.out.println("We have a winner!");             if(board[0][0] == 'x') System.out.println("Player 1 wins");             else System.out.println("Player 2 wins");             won = true;         }                  if(board[2][0]==board[1][1] && board[0][2] == board[1][1]) {             System.out.println("We have a winner!");             if(board[2][0] == 'x') System.out.println("Player 1 wins");             else System.out.println("Player 2 wins");             won = true;         }                      return won;     }               //a method to determine if the game has ended a draw     public static boolean draw() {         boolean draw = true;         for(int i=0; i<=2; i++) {             for(int j=0; j<=2; j++) {                 if(board[i][j] == '-') draw = false;             }         }         return draw;     }     //a method to print the board     public static void printBoard() {          System.out.println("-------------");          for (int i = 0; i < 3; i++) {              System.out.print("| ");              for (int j = 0; j < 3; j++) {                  System.out.print(board[i][j] + " | ");              }              System.out.println();              System.out.println("-------------");          }     }      }

Note: This is my version of tic tac toe game in java, just go through it and ask me if you have any doubts or queries related to the program

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