Java tutorial
import java.util.Arrays; import java.util.Random; public class Main { public static void main(String args[]) { int[] solutionArray = { 1, 2, 3, 4, 5, 6 }; shuffleArray(solutionArray); System.out.println(Arrays.toString(solutionArray)); } static void shuffleArray(int[] ar) { Random rnd = new Random(); for (int i = ar.length - 1; i > 0; i--) { int index = rnd.nextInt(i + 1); // Simple swap int a = ar[index]; ar[index] = ar[i]; ar[i] = a; } } }