斗地主发牌----HashMap、ArrayList、Collections

public class DouDiZhu {public static void main(String[] args) {//1.准备牌//创建一个Map集合,存储牌的索引和组装好的牌HashMap<Integer, String> poker = new HashMap<>();//创建一个List集合,存储牌的索引ArrayList<Integer> pokerIndex = new ArrayList<>();//定义两个集合,存储花色和牌的序号List<String> colors = List.of("?", "?", "?", "?");List<String> numbers = List.of("2", "A", "K", "Q", "J", "10", "9", "8", "7", "6", "5", "4", "3");//把大小王存储到集合中//定义一个牌的索引int index = 0;poker.put(index, "大王");pokerIndex.add(index);index++;poker.put(index, "小王");pokerIndex.add(index);index++;//循环嵌套遍历两个集合,组装52张牌,存储到集合中for (String number : numbers) {for (String color : colors) {poker.put(index, color+number);pokerIndex.add(index);index++;}}/*2.洗牌使用Collections中的方法shuffle(List)*/Collections.shuffle(pokerIndex);/*3.发牌*///定义4个集合,存储玩家牌的索引,和底牌的索引ArrayList<Integer> player01 = new ArrayList<>();ArrayList<Integer> player02 = new ArrayList<>();ArrayList<Integer> player03 = new ArrayList<>();ArrayList<Integer> diPai = new ArrayList<>();//遍历存储牌索引的List集合,获取每一个牌的索引for (int i = 0; i < pokerIndex.size(); i++) {Integer in = pokerIndex.get(i);//先判断底牌if(i>=51){diPai.add(in);}else if(i%3==0){//给玩家1发牌player01.add(in);}else if(i%3==1){//给玩家2发牌player02.add(in);}else if(i%3==2){//给玩家3发牌player03.add(in);}}/*4.排序使用Collections中的方法sort(List)默认是升序排序*/Collections.sort(player01);Collections.sort(player02);Collections.sort(player03);/*5.看牌调用看牌的方法*/lookPoker("刘德华",poker,player01);lookPoker("周润发",poker,player02);lookPoker("周星驰",poker,player03);lookPoker("底牌",poker,diPai);}private static void lookPoker(String name, HashMap<Integer, String> poker, ArrayList<Integer> list) {//输出玩家名称,不换行System.out.print(name+":");for (Integer key : list) {//使用牌的索引,去Map集合找到对应的牌String value = poker.get(key);System.out.print(value+" ");}System.out.println();//打印完一个玩家的牌,换行}
}