How do I randomly fill an array in Java?

Question

I\'m writing a program that creates a 2D array from a integer n. I then have to fill the array with values from 1 to the nn array size and check to see if it is a magic

Answer 1

You'll need to shuffle the values. You could shuffle each row, then each column, but I suggest you put all the values in one big n * n 1D array and shuffle that, then fill the 2D array.