class card implements Comparable<card> {
    private int color; //1-4
    private int point; //1-13
    card(int color, int point) {
        this.color = color;
        this.point = point;
    }

    public int compareTo(card cobj) {
        return color * 10 + point - (cobj.color * 10 + cobj.point);
    }

    public String toString() {
        String str=null;
        switch (color) {
        case 0:
            str = "桃";
            break;
        case 1:
            str = "心";
            break;
        case 2:
            str = "梅";
            break;
        case 3:
            str = "方";
            break;
        }
        switch(point)
        {
        case 0:
           str += " A";
           break;
       case 10:
           str += " J";
           break;
       case 11:
           str += " Q";
           break;
       case 12:
           str += " K";
           break;
           default:
               str+=" "+ (point+1);         
        }
        return str;
    }
}

public class test {
    public static void main(String[] args) {
        ArrayList<card> pk=new ArrayList<card>();
        for (int i = 0; i < 52; i++) {
            pk.add(new card((i/13)%4,i%13));
        }
        System.out.println(pk);
        Collections.shuffle(pk); //洗牌
        System.out.println(pk);
        Collections.sort(pk); //排序
        System.out.println(pk);
    }
}