Thread: Array table question

import javax.swing.JOptionPane;
 
 
public class circle{
  //Instance variables
  /*
   * 2D array of chars for the board
   */
 
	public static void main(String[] args)
	{
		circle o = new circle();
		o.print();
 
 
 
 
	}
 
 
  private char[][] board;
 
  /** 
   * Creates a board where each
   * square holds the underline '_' character.
   */
  public circle(){
    board = new char[2][3];
    for (int row = 0; row < 2; row ++){
      for (int col =  0; col < 3; col++){
        board[row][col] = '_';
      } // end of inner loop
    } // end of outer loop
  } 
 
 
  public char get(int row, int col){
    return board[row][col];
  }
 
 
 
 
  public void print(){
    int col;
    System.out.println();
    for (int row = 0; row < 2; row ++){
      if(row == 0){
        System.out.print("Start"+ "\t");
      }
      else {
        System.out.print("Finish"+ "\t");
      }
      for (col =  0; col < 3; col++){
        System.out.print(board[row][col] + " ");
      } // end of inner loop
      System.out.println();
    } // end of outer loop   
  }
}

This prints:
Start _ _ _
Finish _ _ _


I was wondering how i could change the "_" to "X" if the user inputs a correct answer :S