Java集合练习【模拟洗牌、发牌、排序过程】

怼烎@ 2022-05-18 09:18 168阅读 0赞

package test;
    
    import java.util.ArrayList;
    import java.util.Collections;
    import java.util.HashMap;
    import java.util.TreeSet;
    
    public class Main {
        public static void main(String[] args) {
    
            String[] color = {
       "红桃", "黑桃", "方块", "梅花"};
            String[] number = {
       "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "1", "2"};
    
            HashMap<Integer, String> puker = new HashMap<Integer, String>();
            ArrayList<Integer> array = new ArrayList<Integer>();//发的牌 其实是序号
    
            int ans = 0;
    
            for(String s : number) {
                for(String str : color) {
                    puker.put(ans, str+s);
                    array.add(ans);
                    ans++;
                }
            }
    
            puker.put(ans, "小王");
            array.add(ans);
            ans++;
            puker.put(ans, "大王");
            array.add(ans);
    
            //洗牌
            Collections.shuffle(array);
    
            //发牌，使用TreeSet集合，保证牌是按顺序的
            TreeSet<Integer> sa = new TreeSet<Integer>();
            TreeSet<Integer> sb = new TreeSet<Integer>();
            TreeSet<Integer> sc = new TreeSet<Integer>();
            TreeSet<Integer> sd = new TreeSet<Integer>();
    
            for(int i = 0; i < array.size(); i++) {
                if(i >= array.size()-3) {
                    sd.add(array.get(i));
                }
                else if(i%3 == 0) {
                    sa.add(array.get(i));
                }else if(i%3 == 1) {
                    sb.add(array.get(i));
                }else if(i%3 == 2) {
                    sc.add(array.get(i));
                }
            }
    
            printPuker("sa", sa, puker);
            printPuker("sb", sb, puker);
            printPuker("sc", sc, puker);
            printPuker("sd", sd, puker);
    
        }
        public static void printPuker(String name, TreeSet<Integer> p,
                HashMap<Integer, String> puker) {
            System.out.println(name+"的牌是：");
            for(Integer s : p) {
                System.out.print(puker.get(s)+" ");
            }
            System.out.println();
        }
    }