Java开发中运用模拟斗地主进行算法训练

    import java.util.ArrayList;
    import java.util.Collections;
    import java.util.HashMap;
    import java.util.TreeSet;
    
    public class DouDiZhu {
    public static void main(String[] args) {
        HashMap<Integer, String> hash = new HashMap<Integer, String>();
        ArrayList<Integer> array = new ArrayList<Integer>();
        String[] color = {"♣", "♥", "♦", "♠"};
        String[] number = {"2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "O", "K", "A"};
        int index = 0;
        for (String s1 : number) {
            for (String s : color) {
                hash.pu