Having trouble finding the cause of this ArrayIndexOutOfBoundsException
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Can you post the full text of the error message that shows where the error happens.
How does the code try to keep the index from going past the end of the array?
What variable's value is too big?
Code:
sub[m][n] = a[i-dx/2 + m][j-dy/2 + n]; //#1 array index out of bounds exception
Which array? sub or a?
What is the value of the 4 indexes used with those arrays?
Add a println() statement to print out the values of those 4 indexes so you can see what their values are.
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