J.6.2. Method shuffle
Method shuffle randomly orders a List’s elements. Appendix E presented a card shuffling and dealing simulation that shuffled a deck of cards with a loop. If you have an array of 52 Card objects, you can shuffle them with method shuffle as follows:
List< Card > list = Arrays.asList( deck ); // get ListCollections.shuffle( list ); // shuffle deck
The second line above shuffles the array by calling static method shuffle of class Collections. Method shuffle requires a List argument, so we must obtain a List view of the array before we can shuffle it. The Arrays class’s static method asList gets a List view of the deck array.
Get Android™ How to Program, Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
