一副牌

public class DeckOfCards {public static void main(String [] args){int [] deck=new int[52];String [] suits={"Spades","Hearts","Diamonds","Clubs"};String [] ranks={"Ace","2","3","4","5","6","7","8","9","10","Jack","Queen","King"};for(int i=0;i<deck.length;i++)deck[i]=i;for(int i=0;i<deck.length;i++){int index =(int)(Math.random() * deck.length);int temp=deck[i];deck[i]=deck[index];deck[index]=temp;}for(int i=0;i<4;i++){String suit=suits[deck[i]/13];String rank=ranks[deck[i]%13];System.out.println("Card number "+deck[i]+": "+rank+" of "+suit);}}}