java实现简单的生成52张牌、三个人洗牌、码牌算法

「爱情、让人受尽委屈。」 2024-03-22 15:36 34阅读 0赞

定义一个Pocker类，用于定义牌类

package demo;
    
    public class Poker {
        
    
        private String suit;//花色
        private int rank;//数字
    
        //构造函数
        public Poker(String suit, int rank) {
        
            this.suit = suit;
            this.rank = rank;
        }
    
        //get 和 set 方法
    
        public String getSuit() {
        
            return suit;
        }
    
        public void setSuit(String suit) {
        
            this.suit = suit;
        }
    
        public int getRank() {
        
            return rank;
        }
    
        public void setRank(int rank) {
        
            this.rank = rank;
        }
    
        public String toString() {
        
            return "{" + suit + " " + rank + "}";
        }
    
    }

定义一个Game类

package demo;
    
    import java.util.ArrayList;
    import java.util.Random;
    
    public class Game {
        
        //定义四种好花色
        private static final String[] suits = {
        "♥", "♣", "♦", "♥"};
    
        //生成52张扑克牌
        public ArrayList<Poker> productPoker() {
        
            ArrayList<Poker> pokers = new ArrayList<>();
            for (int i = 0; i < suits.length; i++) {
        
                for (int j = 0; j < 13; j++) {
        
                    int rank = j;
                    String suit = suits[i];
                    Poker poker = new Poker(suit, rank);
                    pokers.add(poker);
                }
            }
            return pokers;
        }
    
        //洗牌
    
        private void swap(ArrayList<Poker> pokers, int i, int j) {
        //交换函数
            Poker tmp = pokers.get(i);
            pokers.set(i, pokers.get(j));
            pokers.set(j, tmp);
        }
    
        public ArrayList<Poker> shufflePocker(ArrayList<Poker> pokers) {
        
            for (int i = pokers.size() - 1; i > 0; i--) {
        
                Random random = new Random();
                int index = random.nextInt(i);//产生一个0到i的随机数
                swap(pokers, index, i);//交换牌index 与 i指向的内容
            }
            return pokers;
        }
    
        //码牌
        public ArrayList<ArrayList<Poker>> buildPoker(ArrayList<Poker> pokers) {
        
    
            ArrayList<ArrayList<Poker>> hands = new ArrayList<>();
            ArrayList<Poker> person1 = new ArrayList<>();
            ArrayList<Poker> person2 = new ArrayList<>();
            ArrayList<Poker> person3 = new ArrayList<>();
    
            for (int i = 0; i < pokers.size(); i++) {
        
                int j = i % 3;
                switch (j) {
        
                    case 0: {
        
                        person1.add(pokers.get(i));
                        break;
                    }
                    case 1: {
        
                        person2.add(pokers.get(i));
                        break;
                    }
                    case 2: {
        
                        person3.add(pokers.get(i));
                        break;
                    }
                }
    
            }
            hands.add(person1);
            hands.add(person2);
            hands.add(person3);
            return hands;
        }
    
    }

定义一个测试类

package demo;
    
    import java.util.ArrayList;
    
    public class Test {
        
        public static void main(String[] args) {
        
    
            Game game = new Game();
            ArrayList<Poker> pokers = new ArrayList<>();
            ArrayList<ArrayList <Poker>> hands = new ArrayList<>();
    
            //生成牌
            pokers = game.productPoker();
            //打印牌
            System.out.println(pokers);
            //洗牌
            pokers = game.shufflePocker(pokers);
            System.out.println(pokers);
    
            //码牌
            hands = game.buildPoker( pokers);
            for (int i = 0; i < hands.size(); i++) {
        
                System.out.println("person"+ (i+1) +"的牌:");
                for (int j = 0; j < hands.get(i).size(); j++) {
        
                    System.out.print(hands.get(i).get(j));
                }
                System.out.println();
    
            }
        }
    }

结果  
![在这里插入图片描述][3a55522c991d4bf3874459b382130cd8.png]

[3a55522c991d4bf3874459b382130cd8.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/18/d3c01d0171944fd3b098bb5b01b845bc.png