Java之斗地主案例

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import java.util.*;

/*
    模拟斗地主发牌
 */
public class Test {
    public static void main(String[] args) {
        //1.生成一副牌
        //定义一个双列集合，键：表示牌的编号，值：表示具体的牌，规则：编号越小，牌越小
        Map<Integer,String> pokers = new HashMap<>();
        //定义一个单列集合，用来存储所有牌的编号
        List<Integer> list = new ArrayList<>();

        //具体生成牌的操作
        //52张普通牌
        String[] colors = {"♠","♥","♣","♦"};
        String[] numbers = {"3","4","5","6","7","8","9","10","J","Q","K","A","2"};

        int num = 0;        //表示编号
        //通过循环嵌套生成普通牌
        for (String number : numbers) {//外循环获取所有的点数
            for (String color : colors) {//内循环获取所有的花色
                String poker = color + number;
                //将牌的编号，具体的牌放到双列集合中
                pokers.put(num,poker);
                //将牌的编号放到单列集合中
                list.add(num);
                //没添加一张牌，编号自增1
                num++;
            }

        }
        //2张大小王
        //添加小王
        pokers.put(num, "小王");
        list.add(num++);
        //添加大王
        pokers.put(num, "大王");
        list.add(num);

        //打印牌
        System.out.println("所有的牌: " + pokers);
        System.out.println("牌的编号: " + list);

        //洗牌
        Collections.shuffle(list);
        System.out.println("洗好牌后，编号为: " + list);

        //发牌
        //定义四个集合，表示3个玩家和底牌
        List<Integer> liuyifei = new ArrayList<>();
        List<Integer> zhaobenshan = new ArrayList<>();
        List<Integer> myself = new ArrayList<>();
        List<Integer> dipai = new ArrayList<>();

        //具体的发牌操作，将索引与3取余，决定发给谁
        for (int i = 0; i < list.size(); i++) {
            //获取编号
            Integer pokerNum = list.get(i);
//            System.out.println(pokerNum);
            if (i >= list.size() - 3) {
                //底牌
                dipai.add(pokerNum);
            }else if (i % 3 == 0) {
                liuyifei.add(pokerNum);
            }else if (i % 3 == 1) {
                zhaobenshan.add(pokerNum);
            }else if (i % 3 == 2) {
                myself.add(pokerNum);
            }
        }
        //查看玩家，底牌的编号
        /*System.out.println("liuyifei: " + liuyifei);
        System.out.println("zhaobenshan: " + zhaobenshan);
        System.out.println("myself: " + myself);
        System.out.println("dipai: " + dipai);*/

        //查看具体的牌
        System.out.println("___________________________________________________");
        /*String s1 = printPoker(liuyifei, pokers);
        System.out.println(s1);*/

        System.out.println("liuyifei: " + printPoker(liuyifei, pokers));
        System.out.println("zhaobenshan: " + printPoker(zhaobenshan, pokers));
        System.out.println("myself: " + printPoker(myself, pokers));
        System.out.println("dipai: " + printPoker(dipai, pokers));
    }
    /*
        定义一个方法，用来看牌
            方法名：    printPoker
            参数列表：   List<Integer>,Map<Integer,String>
            返回值：String
     */
    public static String printPoker(List<Integer> nums, Map<Integer,String> pokers) {
        //1.对牌的编号升序排列
        Collections.sort(nums);
        //2.遍历牌的编号集合，获取到每一个编号
        StringBuilder sb = new StringBuilder();
        for (Integer num : nums) {
            //num就是要查找的具体牌的编号
            //3.根据编号去双列集合中查找该编号对应的具体牌
            String poker = pokers.get(num);
            sb.append(poker + " " );
        }
        //4.将获取到的牌进行拼接
        //5.将最后拼接结果返回即可
        String str = sb.toString();
        return str.trim();
    }
}

作者所有随笔仅为学习笔记，仅供参考

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