Why is my array printing twice?

Question

I am trying to print a 2d array, and for some reason it keeps printing twice. I can't figure it out...

Here is the loop i'm using, and what it prints.
{ 
	int[][]gameBoard = {{1,2,3},{4,5,6},{7,8,9}};         
  	{ 
  		for(int k = 0; k<gameBoard.length; k++)
  		        { 
  		        for(int j = 0; j<gameBoard.length; j++)
  		                {
  		                System.out.print("| " + gameBoard[k][j] + " |"); 
  		                }
  		      System.out.println();
  		        } 
  		}

| 1 || 2 || 3 |
| 4 || 5 || 6 |
| 7 || 8 || 9 |
| 1 || 2 || 3 |
| 4 || 5 || 6 |
| 7 || 8 || 9 |

Kung Fu Champion · Accepted Answer

Your code is correct. I ran the program and it printed out:
| 1 || 2 || 3 |
| 4 || 5 || 6 |
| 7 || 8 || 9 |

Maybe because you ran your program twice.

The other answer is incorrect. There is no such thing as gameBoard[k].length

Hope that helps.
=D

Darnental · Answer

It looks like you have a few extra brackets in your code, like after the "int[][]" line. Double check everything and make sure that what you need is exactly this. Also, you should use for the inner for-loop the length of the individual sub array like this:

for(int j = 0; j<gameBoard[k].length; j++)

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Why is my array printing twice?

2 Answers