" What does it mean for a 2d array to equal something?"
It means nothing... Well, perhaps, but you have to be more precise in your question.

" if (int [i] [j] array == 1)"
This syntax is invalid.
The problem is that it is hard to understand your intent with this snippet and your question.
Do you need to compare a whole array?
Or is your test intended to test only one entry in the array?
In this latter case, the test should look like:
if (someArray[i][j] == 1)
where i and j are indexes in the array, and someArray has been defined as:
int[][] someArray = new someArray[DIM1][DIM2];
(DIM1 and DIM2 are just integer constants).