package com.itheima.模擬斗地主.斗地主版本2;import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.TreeSet;public class Card {private HashMap<Integer, String> hm;private ArrayList<TreeSet<Integer>> list;public ArrayList<TreeSet<Integer>> getList() {return list;}public Card() {//將54張牌按大小順序放入Map集合中hm = new HashMap<>();String[] huase = {"?", "?", "?", "?"};String[] dianshu = {"3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A", "2"};//定義一個變量，使得牌可以從0索引開始添加進去int count = 0;for (int i = 0; i < dianshu.length; i++) {for (int j = 0; j < huase.length; j++) {hm.put(count++, huase[j] + dianshu[i]);}}hm.put(count++, "小王");hm.put(count++, "大王");}public void xiCard(String name1, String name2, String name3) {//定義一個集合，依次賦值為0,1,2,3,4....ArrayList<Integer> list1 = new ArrayList<>();for (int i = 0; i < 54; i++) {list1.add(i);}//重新排列Collections.shuffle(list1);//將打亂的值按一定規則賦予TreeSet集合TreeSet<Integer> treeSet1 = new TreeSet<>();TreeSet<Integer> treeSet2 = new TreeSet<>();TreeSet<Integer> treeSet3 = new TreeSet<>();TreeSet<Integer> dipai = new TreeSet<>();for (int i = 0; i < list1.size(); i++) {if (i >= list1.size() - 3) {dipai.add(list1.get(i));} else if (i % 3 == 0) {treeSet1.add(list1.get(i));} else if (i % 3 == 1) {treeSet2.add(list1.get(i));} else if (i % 3 == 2) {treeSet3.add(list1.get(i));}}list = new ArrayList<>();list.add(treeSet1);list.add(treeSet2);list.add(treeSet3);list.add(dipai);lookPoke("張三", treeSet1);lookPoke("李四", treeSet2);lookPoke("王五", treeSet3);}public void lookPoke(String name, TreeSet<Integer> treeSet) {//按TreeSet里面的值去找HashMap里面的索引if (name.equals("底牌")) {System.out.print(name + "為:");} else {System.out.print(name + "的牌為:");}for (Integer i : treeSet) {System.out.print(hm.get(i) + " ");}System.out.println();} } package com.itheima.模擬斗地主.斗地主版本2;import java.util.TreeSet;public class Test {public static void main(String[] args) {Card card=new Card();//創建玩斗地主的玩家String[] str={"張三","李四","王五"};//洗牌發牌card.xiCard(str[0],str[1],str[2]);//看底牌card.lookPoke("底牌",card.getList().get(3));System.out.println("隨機產生地主中...");//三個玩家中隨機產生一個int i=(int)(Math.random()*3);//將底牌添加到地主牌中TreeSet<Integer> ts= card.getList().get(i);ts.addAll(card.getList().get(3));//重新輸出地主牌card.lookPoke("地主"+str[i],ts);}}

測試效果：

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