The findWinner method just returns a space (indicating no winner yet). This meth

Question

The findWinner method just returns a space (indicating no winner yet). This
method needs to be revised to return the winner, or a ‘T’ if the game has
ended in a tie.


public static char findWinner(final char[][] theBoard){

// this method should return 'X' if X is the winner
// 'O' if O is the winner, a space (' ') if there is no winner,
// or 'T' if there is a tie. For now it just returns a space no matter what.

return ' ';
This si the code:
public static char findWinner(final char[][] theBoard)
{
int i;

for(i=0; i<3; i++) /* check rows */
if(theBoard[i][0]==theBoard[i][1] &&

theBoard[i][0]==theBoard[i][2]) return theBoard[i][0];

for(i=0; i<3; i++) /* check columns */

if(theBoard[0][i]==theBoard[1][i] &&

theBoard[0][i]==theBoard[2][i]) return theBoard[0][i];
/* test diagonals */
if(theBoard[0][0]==theBoard[1][1] &&
theBoard[1][1]==theBoard[2][2])
return theBoard[0][0];
if(theBoard[0][2]==theBoard[1][1] && theBoard[1][1]==theBoard[2][0])
return theBoard[0][2];
return ' ';
}
This is not returning a tie it just returns winner. What we put to return a tie?

Explanation / Answer

please rate - thanks changes highlighted in red
} ------------------------------------------------------------------------------------
in addition the main does not check for a tie change this code also public static void main(String[] args)
      {
        char[][] matrix=new char[3][3]; /* the tic tac toe matrix */

char done;
System.out.println("This is the game of Tic Tac Toe.");

System.out.println("You will be playing against the computer.");

done = ' ';
init_matrix(matrix);
do {

    displayBoard(matrix);

    getMove(matrix,'X');

    done = findWinner(matrix); /* see if winner */

    if(done!= ' ') break; /* winner!*/
      displayBoard(matrix);


    getMove(matrix,'O');

    done =findWinner(matrix); /* see if winner */

} while(done== ' ');

if(done=='X') System.out.println("X wins!");

else if(done=='O')
      System.out.println("O wins!!!!");
else
       System.out.println("Tie game!!!!");


displayBoard(matrix); /* show final positions */
}

public static void main(String[] args)
      {
        char[][] matrix=new char[3][3]; /* the tic tac toe matrix */

char done;
System.out.println("This is the game of Tic Tac Toe.");

System.out.println("You will be playing against the computer.");

done = ' ';
init_matrix(matrix);
do {

    displayBoard(matrix);

    getMove(matrix,'X');

    done = findWinner(matrix); /* see if winner */

    if(done!= ' ') break; /* winner!*/
      displayBoard(matrix);


    getMove(matrix,'O');

    done =findWinner(matrix); /* see if winner */

} while(done== ' ');

if(done=='X') System.out.println("X wins!");

else if(done=='O')
      System.out.println("O wins!!!!");
else
       System.out.println("Tie game!!!!");


displayBoard(matrix); /* show final positions */
}

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