Java：实现一个基于CLI的抽扑克牌游戏（第七周）

左手的ㄟ右手 2022-05-28 10:59 117阅读 0赞

题目来源：大工慕课 [链接][Link 1]  
作者：Caleb Sung

## 题目要求 ##

完成CardDeck类，以便您可以通过比较您和计算机抽取的卡片与计算机进行PK。  
游戏设计要求：

*  In this game, the value of a card is set from small to big: Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen and King.
 *  And the suit of a card is set from small to big: Clubs, Diamonds, Hearts and Spades

## 解答示范 ##

### Card类 ###

这个类定义扑克牌的基本属性：花色和数字，并分别设置一个返回函数

class Card {
        private int suit;
        private int value;
    
        public Card (int s, int v) {
            suit = s;
            value = v;
        }
    
        public int getSuit() {
            return suit;
        }
    
        public int getValue() {
            return value;
        }
    }

### CardDeck类 ###

这个类负责初始化54张扑克牌，洗牌和随机抽牌，最后再与电脑抽取的扑克牌进行比较，将抽出的牌以单词的形式返回出来，并告知孰输孰赢

class CardDeck {
        // fields
        private Card[] cards;
    
        //constructors
        public CardDeck(){
            cards = new Card[52];
            int k = 0;
            for(int i = 0; i < 13; ++i)
                for(int j = 1; j <= 4; ++j)
                    cards[k++] = new Card(j, i);
        }
        //methods
        void shuffle() {
            for(int i = 0; i < 52; ++i) {
                int replacement = (int)(Math.random() * 52);
                swap(replacement, i);
            }
        }
    
        public Card drawRand() {
            int num = (int)(Math.random() * 52);
            return cards[num];
        }
    
        public Card drawManually(int i) {
            return cards[i];
        }
    
        private void swap(int i, int j) {
            Card tmp = cards[i];
            cards[i] = cards[j];
            cards[j] = tmp;
        }
    
        public String value_to_str(int value) {
            String str1 = null;
            switch(value){  
            case 0:  
                str1="Ace";  
                break;  
            case 1:  
                str1="2";  
                break;  
            case 2:  
                str1="3";  
                break;  
            case 3:  
                str1="4";  
                break;  
            case 4:  
                str1="5";  
                break;  
            case 5:  
                str1="6";  
                break;  
            case 6:  
                str1="7";  
                break;  
            case 7:  
                str1="8";  
                break;  
            case 8:  
                str1="9";  
                break;  
            case 9:  
                str1="10";  
                break;  
            case 10:  
                str1="Jack";  
                break;  
            case 11:  
                str1="Queen";  
                break;  
            case 12:  
                str1="King";  
                break;  
            }  
            return str1;
        }
    
        public String suit_to_str(int suit) {
            String str2 = null;
            switch(suit){  
            case 1:  
                str2="Clubs";  
                break;  
            case 2:  
                str2="Diamonds";  
                break;  
            case 3:  
                str2="Hearts";  
                break;  
            case 4:  
                str2="Spades";  
                break;  
            }  
            return str2;
        }
    
        int cmp_value(int Random_value, int Manually_value) {
            if (Random_value < Manually_value)
                return 1;
            else if (Random_value > Manually_value)
                return -1;
            else
                return 0;
        }
    
        int cmp_suit(int Random_suit, int Manually_suit) {
            if (Random_suit < Manually_suit)
                return 1;
            else if (Random_suit > Manually_suit)
                return -1;
            else
                return 0;
        }
    }

### 主函数 ###

import java.util.Scanner;
    
    public class CardDeckTest { 
    
        private static Scanner in;
    
        public static void main(String[] args) {
            CardDeck cd = new CardDeck();
    
            cd.shuffle();
    
            System.out.println("This is a poker game that judge who is the winner.");
            System.out.println("Powered by Caleb Sung, on 2018/4/3");
            System.out.println("-----------------------------------------");
            System.out.println("\nIn this game, the value of a card is set from small to big:");
            System.out.println("Ace, 2, 3, 4, 5, 6, 7, 8, 9, 10, Jack, Queen and King.\n");
            System.out.println("And the suit of a card is set from small to big:");
            System.out.println("Clubs, Diamonds, Hearts and Spades.\n");
            System.out.println("-----------------------------------------");
            System.out.println("\nTime for you to choose a card!");
            System.out.println("Please input a number between 1 and 52:\n");
            in = new Scanner(System.in);
            int i = in.nextInt() - 1;
            if (i> 52) {
                System.out.println("Illegal value!");
                System.exit(0);
            }
    
            int Random_value = cd.drawRand().getValue();
            int Manually_value = cd.drawManually(i).getValue();
            int Random_suit = cd.drawRand().getSuit();
            int Manually_suit = cd.drawManually(i).getSuit();
    
            String str_of_value_random = cd.value_to_str(Random_value);
            String str_of_suit_random = cd.suit_to_str(Random_suit);
            String str_of_value_manually = cd.value_to_str(Manually_value);
            String str_of_suit_manually = cd.suit_to_str(Manually_suit);
    
            System.out.println("-----------------------------------------");
            System.out.println("The card you choose is "+str_of_value_manually+" of "+str_of_suit_manually);
            System.out.println("The card computer choose is "+str_of_value_random+" of "+str_of_suit_random);
            System.out.println("-----------------------------------------");
    
            int cmp = cd.cmp_value(Random_value, Manually_value);
            if (cmp == 1) 
                System.out.println("Congratulations! You win!");
            else if (cmp == -1) 
                System.out.println("Sorry, you lose!");
            else if (cmp == 0) {
                cmp = cd.cmp_suit(Random_suit, Manually_suit);
                if (cmp == 1) 
                    System.out.println("Congratulations! You win!");
                else if (cmp == -1) 
                    System.out.println("Sorry, you lose!");
                else
                    System.out.println("Unimaginable! Draw!");
            }
        }
    }

[Link 1]: https://mooc.dlut.edu.cn/