the programme below compiles but when i run it nothing happens
/**
A 3 x 3 board for naughts and crossses
*/
public class OXOGame
{
/**
Constructs an empty board.
*/
public OXOGame()
{
board = new char[ROWS][COLUMNS];
// fill with spaces
for (int i = 0; i < ROWS; i++)
for (int j = 0; j < COLUMNS; j++)
board[i][j] = ' ';
}
/**
Sets a field in the board. The field must be unoccupied.
@param i the row index
@param j the column index
@param player the player ('x' or 'o')
*/
public boolean set(int i, int j, char player)
{
if (board[i][j] != ' ')
return false;
board[i][j] = player;
return true;
}
/**
Creates a
string representation of the board such as
|x o|
| x |
| o|
@return the string representation
*/
public String toString()
{
String r = "";
for (int i = 0; i < ROWS; i++)
{
r = r + "|";
for (int j = 0; j < COLUMNS; j++)
r = r + board[i][j];
r = r + "|\n";
}
return r;
}
private char[][] board;
private static final int ROWS = 3;
private static final int COLUMNS = 3;
}