import java.util.Scanner;public class CardTest {public static void main(String[] args) {Scanner sc = new Scanner(System.in);int win = 0;int lose = 0;while (true) {System.out.println("请问做庄家1/闲家2?");int num = sc.nextInt();if (num == 1) {System.out.println("你选择做庄家");Ruler r = new Ruler();int n=r.play();if(n==0) { //庄家赢win++; }elselose++;} else if (num == 2) {System.out.println("你选择做闲家");Player p = new Player();int n= p.play();if(n==1) { //闲家赢win++;}elselose++;} else {System.out.println("输入错误，重新输入");}System.out.println("是否继续Y/N");if (sc.next().charAt(0) == 'Y')continue;else {System.out.println("游戏结束");System.out.println("赢："+win);System.out.println("输："+lose);break;}}}}

import java.util.Random;public class Card {int index = 0; // 发牌索引下标String[] card = { "红桃A", "红桃2", "红桃3", "红桃4", "红桃5", "红桃6", "红桃7", "红桃8","红桃9", "红桃10", "红桃J", "红桃Q", "红桃K", "黑桃A","黑桃2", "黑桃3", "黑桃4", "黑桃5", "黑桃6", "黑桃7", "黑桃8", "黑桃9", "黑桃10", "黑桃J", "黑桃Q", "黑桃K","梅花A", "梅花2", "梅花3","梅花4", "梅花5", "梅花6", "梅花7", "梅花8", "梅花9", "梅花10", "梅花J", "梅花Q", "梅花K", "方片A", "方片2", "方片3", "方片4", "方片5","方片6", "方片7", "方片8", "方片9", "方片10", "方片J", "方片Q", "方片K", };public void show() {for (int i = 0; i < 52; i++) {System.out.println(card[i]);}}// 洗牌，打乱牌的顺序public void cutcards() {int index=0;Random rand = new Random();for (int i = 0; i < 52; i++) {int n = rand.nextInt(52);String temp;temp = card[n];card[n] = card[51 - n];card[51 - n] = temp;}}// 发牌,按顺序发牌，从下标0开始public String deal() {String c = card[index];index++;return c;}}

public class JudgeNum {public int judgeString(String num) {String word= num.substring(2);if(word.equals("A")) {return  1;}else if(num.substring(2).equals("J")||num.substring(2).equals("Q")||num.substring(2).equals("K")||num.substring(2).equals("10")) {return 10;}else {int n=(int)num.substring(2).charAt(0)-48;return n;}}}

import java.util.Random;
import java.util.Scanner;public class Player {/** 选择做闲家先得牌 您选择: 闲家             发牌时间: 闲家:红桃K 方片3             庄家:黑桃6 梅花4*  闲家要牌时间:             闲家是否要牌(Y/N)?             Y            发牌:黑桃A* 闲家是否要牌(Y/N)?            Y 发牌:梅花5 闲家是否要牌(Y/N)?             N 闲家不再要牌:           闲家点数:19点            庄家要牌时间:             庄家要牌:梅花5* 庄家要牌:黑桃4           庄家不再要牌:          庄家点数19点 庄赢* * * */Scanner sc= new Scanner(System.in);public int play() {int playernum=0;int rulernum=0;String player1;String player2;String ruler1;String ruler2;JudgeNum judge = new JudgeNum();Card c = new Card();c.cutcards();player1 = c.deal();player2 = c.deal();System.out.println("发牌时间:");System.out.println("闲家:" + player1 + " " + player2);playernum=judge.judgeString(player1)+judge.judgeString(player2);ruler1 = c.deal();ruler2 = c.deal();System.out.println("庄家:" + ruler1 + " " + ruler2);rulernum=judge.judgeString(ruler1)+judge.judgeString(ruler2);System.out.println("闲家点数："+playernum);System.out.println("庄家点数："+rulernum);System.out.println("闲家要牌时间： " );//循环要牌阶段while(true) {System.out.println("闲家是否要牌(Y/N)? " );char w = sc.next().charAt(0);if(w=='Y') {System.out.println("闲家继续要牌");String player3=c.deal();System.out.println("闲家: "+player3 );playernum=playernum+judge.judgeString(player3);System.out.println("闲家点数："+playernum);if(playernum>21){   System.out.println("闲家爆掉，庄家赢");return 0;}      }else if(w=='N') {System.out.println("闲家不再要牌，闲家点数:"+playernum);break;}}System.out.println("庄家要牌时间");while(true) {if(rulernum>=playernum) {System.out.println("庄家不再要牌，庄家赢");return 0;}else {System.out.println("庄家要牌时间：");String ruler3=c.deal();System.out.println("庄家："+ruler3);rulernum=rulernum+judge.judgeString(ruler3);if(rulernum>21) {System.out.println("庄家点数"+rulernum);System.out.println("庄家爆掉，闲家赢");return 1;}else if(rulernum>=playernum) {System.out.println("庄家点数:"+rulernum+" 闲家点数:"+playernum);System.out.println("庄家赢");return 0;}}}}}

import java.util.Scanner;public class Ruler {// 选择做庄家/** 闲家先要牌* */Scanner sc = new Scanner(System.in);public int play() {int playernum = 0;int rulernum = 0;String player1;String player2;String ruler1;String ruler2;JudgeNum judge = new JudgeNum();Card c = new Card();c.cutcards();player1 = c.deal();player2 = c.deal();System.out.println("发牌时间:");System.out.println("闲家:" + player1 + " " + player2);playernum = judge.judgeString(player1) + judge.judgeString(player2);ruler1 = c.deal();ruler2 = c.deal();System.out.println("庄家:" + ruler1 + " " + ruler2);rulernum = judge.judgeString(ruler1) + judge.judgeString(ruler2);System.out.println("闲家点数：" + playernum);System.out.println("庄家点数：" + rulernum);System.out.println("闲家要牌时间：");while (true) {String player3;if (playernum <rulernum) {System.out.println("闲家要牌");player3 = c.deal();System.out.println("闲家:" + player3);playernum = playernum + judge.judgeString(player3);} else if (playernum > 21) {System.out.println("闲家点数：" + playernum);System.out.println("闲家爆掉，庄家赢");return 0;} else if (playernum >= 15) {System.out.println("闲家不再要牌");System.out.println("闲家点数" + playernum);break;}else {System.out.println("闲家要牌");String player4 = c.deal();System.out.println("闲家:" + player4);playernum=playernum+judge.judgeString(player4);if (playernum > 21) {System.out.println("闲家点数：" + playernum);System.out.println("闲家爆掉，庄家赢");return 0;}}}// 庄家要牌时间System.out.println("庄家要牌时间：");while (true) {System.out.println("庄家是否要牌(Y/N)");char w = sc.next().charAt(0);if (w == 'Y') {System.out.println("庄家继续要牌");String ruler3 = c.deal();System.out.println("庄家: " + ruler3);rulernum = rulernum + judge.judgeString(ruler3);System.out.println("庄家点数：" + rulernum);if (rulernum > 21) {System.out.println("庄家爆掉，闲家赢");return 1;}} else if (w == 'N') {System.out.println("庄家不再要牌，庄家点数:" + rulernum);break;}}if (rulernum >= playernum) {System.out.println("庄家赢");return 0;} else {System.out.println("闲家赢");return 1;}}}