in java

Given n >= 0, create an array with length n*n with following the pattern, shown for n=3 { 0, 1, 2, 1, 0, 3, 2, 3, 0} (Spaces have been added to show the grouping of elements of the array more "obvious.") Note: The values in the array are the sum of the "row" and "column" values, except along the diagonal, where it is zero.

diagonal(3) ? [0, 1, 2, 1, 0, 3, 2, 3, 0] diagonal(2) ? [0, 1, 1, 0] diagonal(4) ? [0, 1, 2, 3, 1, 0, 3, 4, 2, 3, 0, 5, 3, 4, 5, 0]