一、项目要求
代码实现，一副扑克牌(不包括大小王)的购买、打乱、发牌。
二、具体实现
2.1 Card类
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 |
class Card { private int rank;//数字 private String suit;//花色
public Card(int rank, String suit) { this.rank = rank; this.suit = suit; }
@Override public String toString() { return "[ " + this.suit + ":"+this.rank+" ]"; } } |
2.2 生成扑克牌
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
private static final String[] suits = {"♥", "♠", "♣", "♦"};
//假设没有大小王：1 2 3............. 11 12 13 public static List<Card> buyCard() { ArrayList<Card> cards = new ArrayList<>(); for (int i = 0; i < 4; i++) { for (int j = 1; j <= 13; j++) { // String suit = suits[i]; // int rank = j; // Card card = new Card(rank, suit); // cards.add(card); cards.add(new Card(j,suits[i])); } } return cards; } |
2.3 打乱顺序
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
private static void swap(List<Card> cards, int i, int j) { Card tmp = cards.get(i); cards.set(i,cards.get(j)); cards.set(j,tmp); }
//洗牌 public static void shuffle(List<Card> cards) { int size = cards.size(); for (int i = size-1; i > 0 ; i--) { Random random = new Random(); int rand = random.nextInt(i); swap(cards, i, rand); } } |
2.4 发牌
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
System.out.println("揭牌：3个人每个人轮流揭牌5张牌");
ArrayList<List<Card>> hand = new ArrayList<>();
List<Card> hand1 = new ArrayList<>(); List<Card> hand2 = new ArrayList<>(); List<Card> hand3 = new ArrayList<>();
hand.add(hand1); hand.add(hand2); hand.add(hand3);
//每个人，轮流揭牌 for (int i = 0; i < 5; i++) { for (int j = 0; j < 3; j++) { Card card = cards.remove(0); hand.get(j).add(card); } } |
三、Test.java
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 |
import java.util.ArrayList; import java.util.List; import java.util.Random;
class Card { private int rank;//数字 private String suit;//花色
public Card(int rank, String suit) { this.rank = rank; this.suit = suit; }
@Override public String toString() { return "[ " + this.suit + ":"+this.rank+" ]"; } } public class Test1 { private static final String[] suits = {"♥", "♠", "♣", "♦"};
//假设没有大小王：1 2 3............. 11 12 13 public static List<Card> buyCard() { ArrayList<Card> cards = new ArrayList<>(); for (int i = 0; i < 4; i++) { for (int j = 1; j <= 13; j++) { // String suit = suits[i]; // int rank = j; // Card card = new Card(rank, suit); // cards.add(card); cards.add(new Card(j,suits[i])); } } return cards; }
private static void swap(List<Card> cards, int i, int j) { Card tmp = cards.get(i); cards.set(i,cards.get(j)); cards.set(j,tmp); }
//洗牌 public static void shuffle(List<Card> cards) { int size = cards.size(); for (int i = size-1; i > 0 ; i--) { Random random = new Random(); int rand = random.nextInt(i); swap(cards, i, rand); } }
public static void main(String[] args) { List<Card> cards = buyCard(); System.out.println("买牌：" + cards); shuffle(cards); System.out.println("洗牌：" + cards); System.out.println("揭牌：3个人每个人轮流揭牌5张牌");
ArrayList<List<Card>> hand = new ArrayList<>();
List<Card> hand1 = new ArrayList<>(); List<Card> hand2 = new ArrayList<>(); List<Card> hand3 = new ArrayList<>();
hand.add(hand1); hand.add(hand2); hand.add(hand3);
//每个人，轮流揭牌 for (int i = 0; i < 5; i++) { for (int j = 0; j < 3; j++) { Card card = cards.remove(0); hand.get(j).add(card); } } System.out.println("第一个人的牌："+ hand1); System.out.println("第二个人的牌："+ hand2); System.out.println("第三个人的牌："+ hand3); System.out.println("剩下的牌："+cards); }
public static void main1(String[] args) { // 1. 构造一副扑克牌 // 2. 揭牌 Card card = new Card(3,"♥"); System.out.println(card);
} } |
