/**
 * TicTacToe2.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class TicTacToe
{
    // instance variables - replace the example below with your own
    private String[][] grid;
    private String player;

    /**
     * Constructor for objects of class TicTacToe
     * initializes the fields and places a Space in 
     * each element of grid of the specified size
     */
    public TicTacToe(int size)
    {
        grid = new String[size][size];
        for (int row = 0; row < size; row++)
            for (int col = 0; col < size; col++)
                grid[row][col] = " "; //space
        player ="X";
    }
    /**
     * will switch player back and forth between "X and "O"
     */
    public void changePlayer()
    {
        if (player.equals("X") )
            player="O";
        else player ="X";
    }
    /**
     * will put the palyers mark in the grid
     */
    public void mark(int row, int col)
    {
        grid[row][col]=player;
        changePlayer();
    }
    public String toString()
    {
        String result = "";
        for(int r = 0 ; r < grid.length; r++)
        {
            
            for(int c = 0; c < grid[r].length; c++)
            {
                result += " " + grid[r][c];
                if (c < 2)
                    result += " |";
            }
            if (r< 2)
            {
              result+="\n ";
              for (int i = 0; i < grid[r].length; i ++)
                result +="---";
            }
            result +="\n";
        }
        return result;
    }
    public void print()
    {
        System.out.println( this );
    }
}