一副扑克52张牌（没有大小王），模拟洗牌

一副扑克52张牌（没有大小王），模拟洗牌

纸牌类，代表一张纸牌：

public class Card {public CardSuit suit; //花色public int value; //点数，1代表A，11代表Jpublic Card(CardSuit suit, int value) {this.suit = suit;this.value = value;}@Overridepublic String toString() {StringBuilder sb = new StringBuilder();switch(suit) {case SPADE:sb.append("黑桃");break;case HEART:sb.append("红桃");break;case DIAMOND:sb.append("方片");break;case CLUB:sb.append("梅花");break;}switch(value) {case 1:sb.append('A');break;case 11:sb.append('J');break;case 12:sb.append('Q');break;case 13:sb.append('K');break;default:sb.append(value);}String();} }

扑克类，代表一副扑克：

import java.util.Random; //纸牌的花色，分别是：黑桃，红心，方片，梅花 enum CardSuit {SPADE, HEART, DIAMOND, CLUB}; //52张牌，没有大小王 public class Cards {public Cards() {cards = new Card[52];int index = 0;for(CardSuit suit:CardSuit.values()) {for(int i=1; i<=13; i++)cards[index++] = new Card(suit, i);}}public void showCards() {for(Card c:cards) {System.out.print(c);System.out.print(" ");}System.out.println();}//洗牌public void shuffle() {Card[] target = new Card[52];int i = 0, j = 26, index = 0, n;Random rand = new Random();//交错式洗牌while(index<52) {n = Int(3) + 1;while(n>0&&i<26) {target[index++] = cards[i++];n--;}n = Int(3) + 1;while(n>0&&j<52) {target[index++] = cards[j++];n--;}}//切牌，把下半部分和上半部分互换位置n = Int(10)+20;for(i=0; i<52; i++) {cards[i] = target[(n+i)%52];}}private Card[] cards; }

主函数，测试一下上面的内容：

public class Main {/*** @param args*/public static void main(String[] args) {// TODO Auto-generated method stubCards cards = new Cards();cards.showCards();cards.shuffle();cards.shuffle();cards.shuffle();cards.shuffle();cards.shuffle();cards.showCards();} }