Why is my array printing out differently on different computers

Question

For our assignment. We have to create an Absolon game. But first we have to get the display board right. I programmed the display using a 2D array, 11 by 21. Using this code. And i got the following answer and it printed out correctly. (IDE Neatbeans)

    char [][] board = new char [11][21];

    for(int column =6; column <= 14; column=column+2 ) {
        int row = 0;
        board[row][column] = '=';
    }

    for(int column =6; column <= 14; column=column+2 ) {
        int row = 1;
        board[row][column] = 'o';
    }

    for(int column =6; column <= 14; column=column+2 ) {
        int row = 10;
        board[row][column] = '=';
    }

    for(int column =6; column <= 14; column=column+2 ) {
        int row = 9;
        board[row][column] = 'x';
    }

    for(int column =5; column <= 15; column=column+2 ) {
        int row = 2;
        board[row][column] = 'o';
    }

     for(int column =5; column <= 15; column=column+2 ) {
        int row = 8;
        board[row][column] = 'x';
    }

     for(int column =5; column <= 15; column=column+2 ) {
        int row = 8;
        board[row][column] = 'x';
    }

     for(int column =8; column <= 12; column=column+2 ) {
        int row = 3;
        board[row][column] = 'o';
    }

     for(int column =8; column <= 12; column=column+2 ) {
        int row = 7;
        board[row][column] = 'x';
    }

    int j=1;
     for(int column =4; column >= 0; column-- ) {
        board[j][column] = '"';
        j = j+1;
    }

     int l=1;
     for(int column =16; column <= 20; column++ ) {
        board[l][column] = '"';
        l = l+1;
    }

     int m=6;
     for(int column =1; column <= 4; column++ ) {
        board[m][column] = '"';
        m = m+1;
    }

     int n=6;
     for(int column =19; column >= 16; column-- ) {
        board[n][column] = '"';
        n = n+1;
    }


    //Print Out Board
    for(int row =0; row < board.length; row++) {
       for(int column =0; column < board[row].length; column++) {
           System.out.print(board[row][column] + ""); 
       } 
       System.out.println();
    }

}

}

This Is The Link to my sample output. http://postimg.org/image/dx656twrf/

But when i went to campus working on the same problem also using neatbeans. It gave me a completely new output.

=====

"ooooo"

"oooooo"

"ooo"

""

"xxx"

"xxxxxx"

"xxxxx"

=====

Whats wrong. Is it the IDE or my code. please help.

When I Use Jgrasp The out put is: http://postimg.org/image/xydlq7e0n/ — Simeon Jaganyi, Sep 14 '13 at 15:15

score 1 · Accepted Answer · answered Sep 14 '13 at 15:18

1

You have not initialized the characters in board to anything so they default to zero which prints differently on various systems. Initialize board with blanks and it will work.

answered Sep 14 '13 at 15:18

greg-449

109,219
232
102
145

Ok that makes perfect since. I've look but with not much luck, about how i would go about initializing the characters in board with blanks. `board[row][column] = '' ; ` Doesn't seem to work. – Simeon Jaganyi Sep 14 '13 at 17:09
Just loop throw the rows / columns like the other initialization, or maybe use `Arrays.fill` for the inner loop. – greg-449 Sep 14 '13 at 17:34

score 1 · Answer 2 · edited May 23 '17 at 12:20

1

The memory of your multi-dimensional char array is initialized with null characters and different systems/fonts may render it differently.

Why does \0 print different output in different system in java

edited May 23 '17 at 12:20

Community

1
1

answered Sep 14 '13 at 15:20

Drew MacInnis

8,267
1
22
18

Why is my array printing out differently on different computers

2 Answers2