JAVA collection集合之扑克牌游戏实例

主要内容：这里使用collection集合，模拟香港电影中大佬们玩的扑克牌游戏。

1、游戏规则：两个玩家每人手中发两张牌，进行比较。比较每个玩家手中牌最大的点数，大小由A-2，点数大者获胜。如果点数相同，则比较花色，大小由黑(4)、红(3)、梅(2)、方(1)，花色大者获胜。

2、实现步骤：

创建一副扑克牌A-2，四种花色黑(4)、红(3)、梅(2)、方(1)共52张牌；
创建两个玩家包含玩家ID和姓名、所持牌Card信息；
洗牌并向两位玩家各发两张牌；
比较玩家手中牌大小，得出获胜者；

3、程序实现

牌Card类：包含牌的数字和花色

package collectiontest.games;
public class Card {
  private Integer id; //牌的大小
  private Integer type;//牌的花色
   
  public Card(Integer id, Integer type) {
    this.id = id;
    this.type = type;
  }
  public Integer getId() {
    return id;
  }
  public void setId(Integer id) {
    this.id = id;
  }
  public Integer getType() {
    return type;
  }
  public void setType(Integer type) {
    this.type = type;
  }
  @Override
  public String toString() {
    return "Card [id=" + id + ", type=" + type + "]";
  }  
}

扑克牌Poker类：包含扑克牌Card A-2

package collectiontest.games;
public class Poker {
  private Card id2 ;
  private Card id3 ;
  private Card id4 ;
  private Card id5 ;
  private Card id6 ;
  private Card id7 ;
  private Card id8 ;
  private Card id9 ;
  private Card id10 ;
  private Card J ;
  private Card Q ;
  private Card K ;
  private Card A ;
   
  public Poker() {
  }    
  //四个类型：黑--4、红--3、梅--2、方--1
  public Poker(Integer type) {
    this.id2 = new Card(2, type);
    this.id3 = new Card(3, type);
    this.id4 = new Card(4, type);
    this.id5 = new Card(5, type);
    this.id6 = new Card(6, type);
    this.id7 = new Card(7, type);
    this.id8 = new Card(8, type);
    this.id9 = new Card(9, type);
    this.id10 = new Card(10, type);
    this.J = new Card(11, type);
    this.Q = new Card(12, type);
    this.K = new Card(13, type);
    this.A = new Card(14, type);
  }
  public Card getId2() {
    return id2;
  }
  public void setId2(Card id2) {
    this.id2 = id2;
  }
  public Card getId3() {
    return id3;
  }
  public void setId3(Card id3) {
    this.id3 = id3;
  }
  public Card getId4() {
    return id4;
  }
  public void setId4(Card id4) {
    this.id4 = id4;
  }
  public Card getId5() {
    return id5;
  }
  public void setId5(Card id5) {
    this.id5 = id5;
  }
  public Card getId6() {
    return id6;
  }
  public void setId6(Card id6) {
    this.id6 = id6;
  }
  public Card getId7() {
    return id7;
  }
  public void setId7(Card id7) {
    this.id7 = id7;
  }
  public Card getId8() {
    return id8;
  }
  public void setId8(Card id8) {
    this.id8 = id8;
  }
 
  public Card getId9() {
    return id9;
  }
  public void setId9(Card id9) {
    this.id9 = id9;
  }
  public Card getId10() {
    return id10;
  }
  public void setId10(Card id10) {
    this.id10 = id10;
  }
  public Card getJ() {
    return J;
  }
  public void setJ(Card j) {
    J = j;
  }
  public Card getQ() {
    return Q;
  }
  public void setQ(Card q) {
    Q = q;
  }
  public Card getK() {
    return K;
  }
  public void setK(Card k) {
    K = k;
  }
  public Card getA() {
    return A;
  }
  public void setA(Card a) {
    A = a;
  }
}

玩家Player类：包含玩家ID和姓名、所持卡片信息

package collectiontest.games;
import java.util.ArrayList;
import java.util.List;
 
public class Player {
  //玩家的ID
  private String id ;
  //玩家姓名
  private String name ;
  //玩家所持牌
  private List<Card> pokerType ;
   
  public Player() {  
  }
  public Player(String id, String name, List<Card> pokerType) {
    this.id = id;
    this.name = name;
    this.pokerType = new ArrayList<>();
  }
 
  public String getId() {
    return id;
  }
  public void setId(String id) {
    this.id = id;
  }
  public String getName() {
    return name;
  }
  public void setName(String name) {
    this.name = name;
  }
  public List<Card> getPokerType() {
    return pokerType;
  }
  public void setPokerType(List<Card> pokerType) {
    this.pokerType = pokerType;
  }  
}

扑克牌游戏主类：包含1)扑克牌创建 2)玩家创建 3)洗牌 4)发牌 5)比较胜负

package collectiontest.games;
 
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.Set;
 
public class GamsBegin {
 
  // 创建扑克牌
  public Set<Poker> cPoker() {
     
    System.out.println("**********开始创建扑克牌**********");
    // 创建一副poker
    // 四个类型：黑--4、红--3、梅--2、方--1
    Set<Poker> pokers = new HashSet<>();
    Poker[] poker = { new Poker(1), new Poker(2), new Poker(3),
        new Poker(4) };
    /*
     * Collections工具类的使用
     * Collections.addAll(pokers, new Poker(1), new Poker(2), new Poker(3),new Poker(4));
     *
     * */
    pokers.addAll(Arrays.asList(poker));
 
    System.out.println("**********扑克牌创建成功**********");
 
    return pokers;
  }
 
  // 创建两个玩家
  public Map<String, Player> cPlayer() {
     
    System.out.println("**********开始创建玩家**********");
    Map<String, Player> map = new HashMap<String, Player>();
    // 控制数量
    Integer control = 0;
 
    System.out.println("创建两名玩家，根据提示创建");
    Scanner console = new Scanner(System.in);
    while (true) {
      System.out.println("请输入第 "+(control+1)+" 个玩家ID：");
      String courseId = console.next();
 
      if (isNumeric(courseId)) {
        System.out.println("请输入第 "+(control+1)+" 个玩家姓名：");
        String courseName = console.next();
 
        Player players = new Player(courseId, courseName, null);
        //保存数据
        map.put(courseId, players);
 
        System.out.println("添加第 " + (control + 1) + " 个玩家 " + courseName
            + " 成功");
        //数量自加
        control++;
      } else {
        System.out.println("*****请输入数字ID*****");
        continue;
      }
 
      if (control == 2) {
        break;
      }
 
    }
 
    System.out.println("**********玩家创建成功**********");
 
    return map;
  }
 
  // 判断输入是否为数字, Character.isDigit()为java方法
  public boolean isNumeric(String str) {
    for (int i = 0; i < str.length(); i++) {
      if (!Character.isDigit(str.charAt(i))) {
        return false;
      }
    }
    return true;
  }
 
  /**
   * 洗牌 ：也可以产生52个不同随机数，实现洗牌
   *
   **/
  public List<Card> wPoker(Set<Poker> pokers) {
    System.out.println("**********开始洗牌**********");
    //利用List的有序排序，洗牌之后保存顺序不变
    List<Card> listCard = new ArrayList<>();
    // 利用Set集合的无序排序，实现洗牌
    Set<Card> listSet = new HashSet<>();
 
    //保存到Set集合，无序
    for (Poker pk : pokers) {
      listSet.add(pk.getId2());
      listSet.add(pk.getId3());
      listSet.add(pk.getId4());
      listSet.add(pk.getId5());
      listSet.add(pk.getId6());
      listSet.add(pk.getId7());
      listSet.add(pk.getId8());
      listSet.add(pk.getId9());
      listSet.add(pk.getId10());
      listSet.add(pk.getJ());
      listSet.add(pk.getQ());
      listSet.add(pk.getK());
      listSet.add(pk.getA());
    }
 
    //保存在List集合,有序
    for (Card cd : listSet) {
      listCard.add(cd);
      System.out.println(cd);
    }
     
    System.out.println("**********洗牌成功**********");
 
    return listCard;
  }
 
  // 发牌
  public Map<String, Player> pushPoker(List<Card> listCard,
      Map<String, Player> pMap) {
    System.out.println("**********发牌开始**********");
     
    // 控制每人发两张牌后结束
    int control = 0;
 
    for (Map.Entry<String, Player> entry : pMap.entrySet()) {
 
      if (control == 0) {
        for (int i = 0; i < 3; i = i + 2) {
          // 发牌
          entry.getValue().getPokerType().add(listCard.get(i));
        }
        // 更新map对象
        pMap.put(entry.getKey(), entry.getValue());
        control++;
      } else if (control == 1) {
        for (int i = 1; i < 4; i = i + 2) {
          // 发牌
          entry.getValue().getPokerType().add(listCard.get(i));
        }
        // 更新map对象
        pMap.put(entry.getKey(), entry.getValue());
        control++;
      } else {
        break;
      }
    }
 
    System.out.println("**********发牌成功**********");
 
    return pMap;
  }
 
 
  public void compareMatch(Map<String, Player> newMap) {
   
    /*比较胜负
     * 1.首先取得每个玩家手中最大牌的ID和花色ID。
     * 2.比较俩玩家手中最大牌的ID大小，牌大者获胜。
     * 3.如果两张牌的ID相等，在比较两张牌的花色ID，花色ID更大着获胜。
     * 
     * */
     
    List<Player> players = new ArrayList<>();
 
    // 获得两个玩家
    for (Map.Entry<String, Player> entry : newMap.entrySet()) {
      players.add(entry.getValue());
    }
 
    // 玩家一信息和所持牌
    List<Card> playerOne = players.get(0).getPokerType();
    //获得最大牌的ID和花色
    Integer oneMaxId = Math.max(playerOne.get(0).getId(), playerOne.get(1)
        .getId());
    Integer oneMaxType = (oneMaxId!=playerOne.get(0).getId()) ? playerOne.get(1).getType() : playerOne.get(0).getType() ;
 
    // 玩家二信息和所持牌
    List<Card> playerTwo = players.get(1).getPokerType();
    //获得最大牌的ID和花色
    Integer twoMaxId = Math.max(playerTwo.get(0).getId(), playerTwo.get(1)
        .getId());
    Integer twoMaxType = (twoMaxId!=playerTwo.get(0).getId()) ? playerTwo.get(1).getType() : playerTwo.get(0).getType() ;
 
    if (oneMaxId > twoMaxId) {
      System.out.println("玩家 ： " + players.get(0).getName() + " 获胜！！");
    } else if (oneMaxId == twoMaxId) {
 
      if (oneMaxType > twoMaxType) {
        System.out
            .println("玩家 ： " + players.get(0).getName() + " 获胜！！");
 
      } else {
        System.out
            .println("玩家 ： " + players.get(1).getName() + " 获胜！！");
      }
 
    } else {
      System.out.println("玩家 ： " + players.get(1).getName() + " 获胜！！");
    }
 
    System.out.println("**********************************************");
    System.out.println("玩家 ： " + players.get(0).getName() + "的牌是："
        + showName(playerOne.get(0).getType(), 0) + "--"
        + showName(playerOne.get(0).getId(), 1) + "  "
        + showName(playerOne.get(1).getType(), 0) + "--"
        + showName(playerOne.get(1).getId(), 1));
    System.out.println("玩家 ： " + players.get(1).getName() + "的牌是："
        + showName(playerTwo.get(0).getType(), 0) + "--"
        + showName(playerTwo.get(0).getId(), 1) + "  "
        + showName(playerTwo.get(1).getType(), 0) + "--"
        + showName(playerTwo.get(1).getId(), 1));
  }
 
  // 显示牌的名称
  private String showName(Integer i, Integer type) {
    String str = "";
 
    // 显示花色
    if (type == 0) {
      switch (i) {
      case 1: {
        str = "方块";
        break;
      }
      case 2: {
        str = "梅花";
        break;
      }
      case 3: {
        str = "红桃";
        break;
      }
      case 4: {
        str = "黑桃";
        break;
      }
 
      default: {
        break;
      }
      }
 
    }
 
    // 显示数字
    if (type == 1) {
      if (i < 11) {
        return i.toString();
      } else {
        switch (i) {
        case 11: {
          str = "J";
          break;
        }
        case 12: {
          str = "Q";
          break;
        }
        case 13: {
          str = "K";
          break;
        }
        case 14: {
          str = "A";
          break;
        }
 
        default: {
          break;
        }
        }
      }
    }
 
    return str;
  }
 
  public static void main(String[] args) {
    GamsBegin gb = new GamsBegin();
     
    // 1、创建扑克牌
    Set<Poker> pokers = gb.cPoker();
 
    // 2、创建两个玩家
    Map<String, Player> pMap = gb.cPlayer();
 
    // 3、洗牌
    List<Card> listCard = gb.wPoker(pokers);
 
    // 4、发牌
    Map<String, Player> newMap = gb.pushPoker(listCard, pMap);
 
    // 4、比较胜负
    gb.compareMatch(newMap);
 
  }
}

运行结果：

**********开始创建扑克牌**********
**********扑克牌创建成功**********
**********开始创建玩家**********
创建两名玩家，根据提示创建
请输入第 1 个玩家ID：
请输入第 1 个玩家姓名：
周星驰
添加第 1 个玩家 周星驰 成功
请输入第 2 个玩家ID：
请输入第 2 个玩家姓名：
周润发
添加第 2 个玩家 周润发 成功
**********玩家创建成功**********
**********开始洗牌**********
Card [id=9, type=3]
Card [id=11, type=4]
Card [id=13, type=3]
Card [id=8, type=3]
Card [id=5, type=2]
Card [id=6, type=1]
Card [id=4, type=3]
Card [id=5, type=4]
Card [id=2, type=3]
Card [id=9, type=2]
Card [id=9, type=4]
Card [id=14, type=2]
Card [id=9, type=1]
Card [id=2, type=1]
Card [id=2, type=4]
Card [id=7, type=4]
Card [id=11, type=1]
Card [id=10, type=1]
Card [id=14, type=4]
Card [id=14, type=3]
Card [id=12, type=2]
Card [id=2, type=2]
Card [id=10, type=2]
Card [id=7, type=1]
Card [id=7, type=3]
Card [id=8, type=2]
Card [id=4, type=4]
Card [id=13, type=4]
Card [id=14, type=1]
Card [id=12, type=1]
Card [id=5, type=1]
Card [id=6, type=4]
Card [id=12, type=4]
Card [id=11, type=2]
Card [id=10, type=3]
Card [id=3, type=4]
Card [id=12, type=3]
Card [id=4, type=2]
Card [id=4, type=1]
Card [id=6, type=2]
Card [id=5, type=3]
Card [id=8, type=4]
Card [id=3, type=2]
Card [id=13, type=2]
Card [id=7, type=2]
Card [id=3, type=3]
Card [id=3, type=1]
Card [id=6, type=3]
Card [id=8, type=1]
Card [id=11, type=3]
Card [id=13, type=1]
Card [id=10, type=4]
**********洗牌成功**********
**********发牌开始**********
**********发牌成功**********
玩家 ： 周星驰 获胜！！
**********************************************
玩家 ： 周星驰的牌是：红桃--9 红桃--K
玩家 ： 周润发的牌是：黑桃--J 红桃--8

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