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‎.gitignore

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.idea
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*.iml
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target

‎README.md

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# 德州扑克牌
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本程序是德州扑克牌大小裁判程序，来源阿里83行code比赛。
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https://college.devops.aliyun.com/
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# 使用说明
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```java
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//直接调用裁判程序即可。
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String result = JudgeManager.getInstance().judge(cards1, cards2);
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```
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# 以下是源内容说明：
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哇再次恭喜你完成83行代码重构大师赛第2关密封舱重启，来到了第3关能量舱！
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能量舱会有一些小挑战。它的性能通过德州扑克判大小的系统控制。
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你的任务：重构德州扑克判大小的系统，以实现能量舱重启。
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完成该任务即可重启能量舱，拿到歼星舰长能量水晶，还有机会抽取CHERRY机械键盘（限量1份）+CHERRY创意释压指尖轴（限量500份）。
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德州扑克规则：
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1. 使用52张扑克（去掉大小王），分为四个花色（红桃H，方块D，黑桃S，梅花C），每个花色13张牌，依次从 2 到 A。J，Q，K，A分别对应为11，12，13，14（A只作为14）。游戏过程玩家各随机抽取5张牌，比大小。

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2. 所有牌型如下：
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* 同花顺(StraightFlush)：同一花色的顺子。（最大牌：A-K-Q-J-10 最小牌：2-3-4-5-6）
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* 四条(FourOfAKind)：四同张加单张。（最大牌：A-A-A-A-K 最小牌：2-2-2-2-3）
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* 葫芦(FullHouse)：三同张加对子。（最大牌：A-A-A-K-K 最小牌：2-2-2-3-3）
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* 同花(Flush)：同一花色。（最大牌：A-K-Q-J-9 最小牌：2-3-4-5-7）
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* 顺子(Straight)：花色不一样的顺子。（最大牌：A-K-Q-J-10 最小牌：2-3-4-5-6）
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* 三条(ThreeOfAKind)：三同张加两单张。（最大牌：A-A-A-K-Q 最小牌：2-2-2-3-4）
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* 两对(TwoPair)：（最大牌：A-A-K-K-Q 最小牌：2-2-3-3-4）
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* 一对(OnePair)：（最大牌：A-A-K-Q-J 最小牌：2-2-3-4-5）
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* 单牌(HighCard)：（最大牌：A-K-Q-J-9 最小牌：2-3-4-5-7）

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3. 牌型大小：
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* 同花顺(StraightFlush) > 四条(FourOfAKind) > 葫芦(FullHouse) > 同花(Flush) > 顺子(Straight) > 三条(ThreeOfAKind) > 两对(TwoPair) > 一对(OnePair) > 单牌（HighCard）
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* 牌点从大到小为：A、K、Q、J、10、9、8、7、6、5、4、3、2，各花色不分大小。   
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* 同种牌型，对子时比对子的大小，其它牌型比最大的牌张，如最大牌张相同则比第二大的牌张，以此类推，都相同时为平手。
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* 例：
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"3H 6H 2H 4H 5H" > "8S 8D 8H JH 8C"
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"2S 2D 2H 4H 4C" > "3S 2D 6C 4H 5H"
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"2S 2D 4C 4H 6C" = "2H 2C 4D 4S 6D" 

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4. 比较程序输入2个玩家的牌，并返回比较结果。
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* 会以字符串形式输入玩家的牌，如 "3H 6H TH 4H AH"。每张牌由：牌点+花色 组成。10、11、12、13、14 分别用 T、J、Q、K、A 表示。
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* 输出格式：(请保证输出的内容符合格式要求，会用于单元测试做比较)
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* 牌型不同时：[player1/player2] wins - [牌型]；例：player1："3H 6H 2H 4H 5H"，player2："8S 8D 8H JH 8C"。输出：player1 wins - StraightFlush
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* 牌型相同时：[player1/player2] wins - high card:[牌点]；例：player1："3H 6H 2H 4H 5H"，player2："8D 9D TD JD QD"。输出：player2 wins - high card:Q
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* 平手时：输出：tie
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### 注意：
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后台会运行若干单测来验证程序的正确性，请不要修改提示了不允许修改的类或者方法的签名，以保证测试的正常运行。例如以下提示：
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// Please don't modify the signature of this method.
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// Please don't modify the class name.

‎pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.zjiecode</groupId>
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<artifactId>poker</artifactId>
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<version>1.0.0</version>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>8</source>
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<target>8</target>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.13</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/com/zjiecode/poker/Card.java

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package com.zjiecode.poker;
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import java.util.HashMap;
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import java.util.Map;
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public class Card implements Comparable<Card> {
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private static Map<String, Integer> codes;
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static {
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codes = new HashMap<>();
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codes.put("2", 2);
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codes.put("3", 3);
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codes.put("4", 4);
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codes.put("5", 5);
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codes.put("6", 6);
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codes.put("7", 7);
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codes.put("8", 8);
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codes.put("9", 9);
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codes.put("T", 10);
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codes.put("J", 11);
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codes.put("Q", 12);
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codes.put("K", 13);
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codes.put("A", 14);
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}
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/**
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* 点数
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*/
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private String name;
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/**
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* 编码
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*/
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private int code;
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/**
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* 花色
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*/
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private String type;
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public Card(String name, String type) {
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this.name = name;
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this.code = codes.get(name);
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this.type = type;
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}
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public String getName() {
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return name;
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}
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public int getCode() {
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return code;
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}
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public String getType() {
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return type;
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}
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@Override
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public int compareTo(Card o) {
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return code - o.code;
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}
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}

‎src/main/java/com/zjiecode/poker/CardFactory.java

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package com.zjiecode.poker;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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public class CardFactory {
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/**
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* 根据输入构造一副牌
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*/
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public static List<Card> createCards(String inputStr) {
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List<Card> cards = new ArrayList<>();
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String[] s = inputStr.split(" ");
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for (String s1 : s) {
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cards.add(new Card(s1.substring(0, 1), s1.substring(1)));
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}
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//排序
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Collections.sort(cards);
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return cards;
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}
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}

‎src/main/java/com/zjiecode/poker/JudgeManager.java

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package com.zjiecode.poker;
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import com.zjiecode.poker.judge.*;
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import com.zjiecode.poker.judge.base.IJudge;
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import java.util.ArrayList;
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import java.util.List;
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public class JudgeManager {
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public static final String TIE = "tie";
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private List<IJudge> judges = new ArrayList<>();
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private static JudgeManager sInstance;
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private JudgeManager() {
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judges.add(new AStraightFlushJudge());
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judges.add(new BFourOfAKindJudge());
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judges.add(new CFullHouseJudge());
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judges.add(new DFlushJudge());
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judges.add(new EStraightJudge());
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judges.add(new FThreeOfAKindJudge());
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judges.add(new GTwoPairJudge());
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judges.add(new HOnePairJudge());
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judges.add(new IHighCard());
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}
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public static JudgeManager getInstance() {
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if (sInstance == null) {
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sInstance = new JudgeManager();
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}
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return sInstance;
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}
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/**
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* 裁判2个玩家的输赢
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*/
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public String judge(String player1, String player2) {
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List<Card> cards1 = CardFactory.createCards(player1);
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List<Card> cards2 = CardFactory.createCards(player2);
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for (IJudge judge : judges) {
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String result = judge.judge(cards1, cards2);
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if (result != null) {
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return result;
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}
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}
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//平手
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return TIE;
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}
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}

‎src/main/java/com/zjiecode/poker/judge/AStraightFlushJudge.java

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package com.zjiecode.poker.judge;
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import com.zjiecode.poker.Card;
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import com.zjiecode.poker.judge.base.BaseJudge;
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import java.util.List;
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public class AStraightFlushJudge extends BaseJudge {
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public static final String TYPE_NAME = "StraightFlush";
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@Override
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public List<Card> getCardType(List<Card> cards) {
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return isStraightFlush(cards) ? cards : null;
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}
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@Override
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public String getTypeName() {
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return TYPE_NAME;
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}
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/**
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* 是不是StraightFlush牌型
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*/
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private boolean isStraightFlush(List<Card> cards) {
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int code = cards.get(0).getCode();
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String type = cards.get(0).getType();
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for (Card card : cards) {
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if (card.getCode() != code || !type.equals(card.getType())) {
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return false;
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}
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code++;
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}
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return true;
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}
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}

‎src/main/java/com/zjiecode/poker/judge/BFourOfAKindJudge.java

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package com.zjiecode.poker.judge;
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import com.zjiecode.poker.Card;
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import com.zjiecode.poker.judge.base.BaseJudge;
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import java.util.*;
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import static java.util.stream.Collectors.groupingBy;
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public class BFourOfAKindJudge extends BaseJudge {
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public static final String TYPE_NAME = "FourOfAKind";
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public static final int TYPE_CARD_NAME_TYPE_COUNT = 2;
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public static final int TYPE_CARD_COUNT_FOUR = 4;
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public static final int TYPE_CARD_COUNT_ONE = 1;
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@Override
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public List<Card> getCardType(List<Card> cards) {
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Map<String, List<Card>> collect = cards.stream().collect(groupingBy(Card::getName));
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if (collect.size() != TYPE_CARD_NAME_TYPE_COUNT) {
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return null;
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}
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List<String> names = new ArrayList<>(collect.keySet());
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String name1 = names.get(0);
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String name2 = names.get(1);
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//一个是4张，一个是1张
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if ((collect.get(name1).size() == TYPE_CARD_COUNT_FOUR && collect.get(name2).size() == TYPE_CARD_COUNT_ONE)
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|| (collect.get(name1).size() == TYPE_CARD_COUNT_ONE && collect.get(name2).size() == TYPE_CARD_COUNT_FOUR)) {
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List<Card> resultCards = new ArrayList<>();
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resultCards.add(collect.get(name1).get(0));
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resultCards.add(collect.get(name2).get(0));
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Collections.sort(resultCards);
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return resultCards;
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}
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return null;
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}
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@Override
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public String getTypeName() {
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return TYPE_NAME;
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}
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}

‎src/main/java/com/zjiecode/poker/judge/CFullHouseJudge.java

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package com.zjiecode.poker.judge;
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import com.zjiecode.poker.Card;
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import com.zjiecode.poker.judge.base.BaseJudge;
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import java.util.*;
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import static java.util.stream.Collectors.groupingBy;
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public class CFullHouseJudge extends BaseJudge {
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public static final int TYPE_CARD_TYPE_COUNT = 2;
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public static final int TYPE_CARD_COUNT_LESS = 2;
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public static final int TYPE_CARD_COUNT_MORE = 3;
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public static final String TYPE_NAME = "FullHouse";
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@Override
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public List<Card> getCardType(List<Card> cards) {
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Map<String, List<Card>> collect = cards.stream().collect(groupingBy(Card::getName));
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if (collect.size() != TYPE_CARD_TYPE_COUNT) {
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return null;
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}
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List<String> names = new ArrayList<>(collect.keySet());
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String name1 = names.get(0);
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String name2 = names.get(1);
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//一个是4张，一个是1张
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if ((collect.get(name1).size() == TYPE_CARD_COUNT_LESS && collect.get(name2).size() == TYPE_CARD_COUNT_MORE)
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|| (collect.get(name1).size() == TYPE_CARD_COUNT_MORE && collect.get(name2).size() == TYPE_CARD_COUNT_LESS)) {
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List<Card> resultCards = new ArrayList<>();
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resultCards.add(collect.get(name1).get(0));
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resultCards.add(collect.get(name2).get(0));
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Collections.sort(resultCards);
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return resultCards;
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}
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return null;
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}
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@Override
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public String getTypeName() {
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return TYPE_NAME;
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}
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}

‎src/main/java/com/zjiecode/poker/judge/DFlushJudge.java

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package com.zjiecode.poker.judge;
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import com.zjiecode.poker.Card;
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import com.zjiecode.poker.judge.base.BaseJudge;
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import java.util.List;
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import java.util.Map;
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import static java.util.stream.Collectors.groupingBy;
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public class DFlushJudge extends BaseJudge {
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public static final String TYPE_NAME = "Flush";
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private static final int TYPE_CARD_TYPE_COUNT = 1;
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@Override
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public List<Card> getCardType(List<Card> cards) {
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Map<String, List<Card>> collect = cards.stream().collect(groupingBy(Card::getType));
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//只有一种花色
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if (collect.size() == TYPE_CARD_TYPE_COUNT) {
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return cards;
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}
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return null;
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}
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@Override
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public String getTypeName() {
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return TYPE_NAME;
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}
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}

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