JAVA collection集合之扑克牌游戏实例
collection 层次结构中的根接口。collection表示一组对象,这些对象也称为collection的元素。一些 collection 允许有重复的元素,而另一些则不允许。一些 collection 是有序的,而另一些则是无序的。jdk 不提供此接口的任何直接 实现:它提供更具体的子接口(如 set 和 list)实现。此接口通常用来传递 collection,并在需要最大普遍性的地方操作这些 collection。
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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