public class TicTacToeTester
{
    public static void main(String[] args)
    {
        //This is to help you test your methods. Feel free to add code at the end to check
        //to see if your checkWin method works!
        TicTacToe game = new TicTacToe();
        System.out.println("Initial Game Board:");
        game.printBoard();

        //Prints the first row of turns taken
        for(int row = 0; row < 3; row++)
        {
            if(game.pickLocation(0, row))
            {
                game.takeTurn(0, row);
            }
        }
        System.out.println("\nAfter three turns:");
        game.printBoard();



    }
}
public class TicTacToe
{
   //copy over your constructor from the Tic Tac Toe Board activity in the previous lesson!
   private int turn;
   private String[][] t = new String[3][3];

    public TicTacToe() {
        for (int x = 0; x < t.length; x++) {
            String[] empty = {"-", "-", "-"};
            t[x] = empty;
        }
    }

   //this method returns the current turn
   public int getTurn()
   {
       return turn;
   }

   /*This method prints out the board array on to the console
   */
   public void printBoard()
   {
       System.out.println("  0 1 2");
       for (int x = 0; x < t.length; x++) {
            System.out.print(x + " ");
            for (int y = 0; y < t[x].length; y++) {
                System.out.print(t[x][y] + " ");
            }
            System.out.println();
       }

   }

   //This method returns true if space row, col is a valid space
   public boolean pickLocation(int row, int col)
   {
        if (t[row][col].equals("-")) return true;
        return false;
   }

   //This method places an X or O at location row,col based on the int turn
   public void takeTurn(int row, int col)
   {
           if (pickLocation(row, col) && turn%2 == 0) {
               t[row][col] = "X";
               turn++;
           }
           else if (pickLocation(row, col) && turn%2 != 0) {
               t[row][col] = "O";
               turn++;
           }
   }

   //This method returns a boolean that returns true if a row has three X or O's in a row
   public boolean checkRow()
   {
       for (int x = 0; x < t[x].length - 1; x++) {
               if (t[x][0].equals(t[x][1]) && t[x][0].equals(t[x][2])) return true;
       }
       return false;
   }

    //This method returns a boolean that returns true if a col has three X or O's
   public boolean checkCol()
   {
        for (int x = 0; x < t.length; x++)
        {
            if (t[0][x].equals(t[1][x]) && t[0][x].equals(t[2][x])) return true;
        }
        return false;
   }

    //This method returns a boolean that returns true if either diagonal has three X or O's
   public boolean checkDiag()
   {
        if (t[0][0].equals(t[1][1]) && t[0][0].equals(t[2][2])) return true;
        else if (t[0][2].equals(t[1][1]) && t[0][2].equals(t[2][0])) return true;
        return false;

   }

   //This method returns a boolean that checks if someone has won the game
   public boolean checkWin()
   {
       if (checkRow() || checkCol() || checkDiag()) return true;
       return false;
   }

}