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2-D Arrays (Read 673 times)
ToneDaBass
2-D Arrays
Oct 27th, 2007, 10:12pm  
I'm having trouble with 2-D array manipulation. Suppose I want to do the following:

 int[][] test = {{1,2},{3,4}};
 test = append(test, {5,6});

That doesn't work. So instead I try:

 int[][] test = {{1,2},{3,4}};
 test = expand(test, 3);
 test[2][0] = 5;
 test[2][1] = 6;

That doesn't work either. Basically, it seems like none of the Processing array functions work on 2-D arrays. I'd like to not have to create a new integer array any time I want to append or contract in 2-D, how can I do so?

Thanks.
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JohnG
Re: 2-D Arrays
Reply #1 - Oct 27th, 2007, 10:17pm  
Code:
  int[][] test = {{1,2},{3,4}};
  test = append(test, {5,6});


Should be:

Code:
   int[][] test = {{1,2},{3,4}};
  test = append(test, new int[]{5,6});


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ToneDaBass
Re: 2-D Arrays
Reply #2 - Oct 27th, 2007, 10:27pm  
Thanks, but that doesn't work either.
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JohnG
Re: 2-D Arrays
Reply #3 - Oct 27th, 2007, 11:23pm  
Ah, you need a cast, to tell it that the result is a 2D array.

Code:
  int[][] test = {{1,2},{3,4}};
  test = (int[][])append(test, new int[]{5,6});
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ToneDaBass
Re: 2-D Arrays
Reply #4 - Oct 27th, 2007, 11:39pm  
Interesting. Awkward, but it makes sense. Thank you.
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