public void shuffle(){
??System.out.println("開始洗牌");
??//洗牌 將一副撲克牌順序打亂
??Random random=new Random();
??//int l=packOfCards.size()-1;
??? int i;
?????? Card card1;
??for(int a=0;a<52;a++){
???????
???do{ i=random.nextInt(51);
???????????? card1=packOfCards.get(i);
????
?????????? packOfCards.set(a, new Card(card1.face,card1.number));
???
???}while(packOfCards.contains(card1));
?
??
??}