洗扑克牌算法

1 import java.util.*;
 2 
 3 class Card
 4 {
 5     public String num;
 6     public String suit;
 7     Card(String n,String s)
 8     {
 9         this.num=n;
10         this.suit=s;
11     }
12     public String toString()
13     {
14         String ss=suit+":"+num+"  ";
15         return ss;
16     }
17 }
18 
19 class DeskOfCard {
21     Card card[];
22     public void initcard() { //初始化
24         String num[]={"A","2","3","4","5","6","7","8","9","10","J","Q","K"};
25         String suit[]={"方块","梅花","红桃","黑桃"};
26         card = new Card[52];
27         for(int i=0;i<52;i++) {
29             card[i] = new Card(num[i%13],suit[i/13]);
30         }
31     }
32 
33     public void shufflecard() {//洗牌
35         Random rd = new Random();
36         for(int i=0;i<52;i++) {
38             int j = rd.nextInt(52);//生成随机数
39             Card temp = card[i];//交换
40             card[i]=card[j];
41             card[j]=temp;
42         }
43     }
44 
45 
46     public void dealcard( {//发牌
48         for(int i=0;i<52;i++) {
50             if(i%4==0) System.out.println("\n");
51             System.out.print(card[i]);
52         }
53     }
54 }
55 
56 public class TestCard {
58     public static void main(String[] args) {
60         DeskOfCard cc = new DeskOfCard();
61         cc.initcard();
62         cc.shufflecard();
63         cc.dealcard();
64     }
65 }