Using Collections.shuffle() to shuffle an array.

Question:

Using Collections.shuffle() to shuffle an array.

Code:

import java.util.*;
 
public class ShuffleCards {
   public static void main(String[] args) {
 
      Integer[] cards = new Integer[10];
 
      // Initialize the array to the ints 0-51
      for (int i=0; i < cards.length; i++) {
        cards[i] = i;
      }
 
      // print out contents of array
      System.out.println(Arrays.toString(cards));
 
      // Shuffle using Collections.shuffle()
      Collections.shuffle(Arrays.asList(cards));
 
      // print out contents of array
      System.out.println(Arrays.toString(cards));
 
   }
}

Output:

$ java ShuffleCards
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
[3, 9, 1, 2, 6, 8, 4, 0, 5, 7]