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So, do you just want to print them back to front, or change the content around so that the content is stored the other way around?

If the latter, then master5001 has answered this (you need a...

array[i][j] = array[i][j];

this line does absolutely nothing (it moves to and from the same place in the array).

Your line that sets "j = ..." in both of your code-samples is also meaningless....