Java tutorial
import java.util.Arrays; import java.util.Random; public class Main { public static int[] shuffle(int[] numbers) { for (int i = 0; i < numbers.length; i++) { int swap = new Random().nextInt(i + 1); int temp = numbers[swap]; numbers[swap] = numbers[i]; numbers[i] = temp; } return numbers; } public static void main(String[] args) { int[] i = shuffle(new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }); System.out.print(Arrays.toString(i)); } }