Java Collection How to - Randomly shake, shuffle an array to assign new random spots

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Question

We would like to know how to randomly shake, shuffle an array to assign new random spots.

Answer

import java.util.Arrays;
import java.util.Random;
//www  .j  a  v  a 2s  .  c  o  m
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));
  }
}

The code above generates the following result.

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