anchor.diff:      }
     }
   
  +<<<<<<< Updated upstream
     void shuffle() {
  +=======
  +  shuffle() {
  +    if (_cards.isEmpty)
  +      return;
  +>>>>>>> Stashed changes
       Random rng = new Random();
       for (int i = _cards.length - 1; i > 0; --i) {
         int nextIndex = rng.nextInt(i);
  
positive.code:       _cards[i] = nextCard;
      }
    }
  }
  
negative.code: 
  class Deck {
    List<Card> _cards;
  
    Deck() {
      _cards = new List<Card>();
      for (Suit suit in Suit.all){
  