java 寫一個可以給鬥地主玩家随機發牌的程式。

需求：寫一個可以給鬥地主玩家随機發牌的程式。a：牌可以随機發給三個玩家b：在控制台列印每個玩家的牌。c：對每個玩家手中的牌按照大小排序。

牌的花色："♠", "♥", "♣", "♦"      
        

思路：建立一個容器存儲所有的牌，再建立三個容器分别表示三個使用者的牌，三個使用者輪流從第一個容器中取牌，剩下三張為底牌。把大王和小王也算進去。可以封裝一個類表示牌

代碼：Main.java

package hcq.hw;

import java.util.List;
import java.util.TreeSet;

public class Main {

	public static void main(String[] args) {
		Poker poker = new Poker();
		
		poker.getPoker();// 得到牌
		// 每個玩家存儲牌的容器
		TreeSet<Card> p1 = new TreeSet<>();
		TreeSet<Card> p2 = new TreeSet<>();
		TreeSet<Card> p3 = new TreeSet<>();
		// 洗牌和發牌操作 傳回的是底牌
		List<Card> dealPoker = poker.dealPoker(p1, p2, p3);

		// 删除牌
		System.err.println("玩家一：" + p1);
		System.err.println("玩家二：" + p2);
		System.err.println("玩家三：" + p3);
		System.out.println("底牌    ：" + dealPoker);
	}

}
           

Poker.java

package hcq.hw;

import java.util.Collection;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

public class Poker {

	private LinkedList<Card> pokers = new LinkedList<>();
	private char[] flowers = { '♦', '♣', '♥', '♠' };
	private char[] numbers = { '3', '4', '5', '6', '7', '8', '9', '0', 'J', 'Q', 'K', 'A', '2' };

	public Poker() {
		for (int i = 0; i < numbers.length; i++) {
			for (int j = 0; j < flowers.length; j++) {
				pokers.add(new Card(numbers[i], flowers[j], j + i * flowers.length));
			}
		}

		pokers.add(new Card('王', '小', 99));
		pokers.add(new Card('王', '大', 100));

	}

	// 初始化牌
	public static Poker getPoker() {
		return new Poker();
	}

	// 列印牌
	public void showPoker() {
		for (Card c : pokers) {
			System.out.println(c.toString());
		}
	}

	// 洗牌和發牌方法
	public List<Card> dealPoker(Collection<Card> play1, Collection<Card> play2, Collection<Card> play3) {
		Collections.shuffle(pokers);// 洗牌
		while (pokers.size() > 3) {
			play1.add(pokers.removeFirst());
			play2.add(pokers.removeFirst());
			play3.add(pokers.removeFirst());
		}
		return pokers;// 傳回3張底牌
	}

}
           

Card.java

package hcq.hw;

public class Card implements Comparable<Card> {
	private char number;// 号碼
	private char flower;// 花色
	private int grade;// 等級

	public Card(char number, char flower, int grade) {
		super();
		this.number = number;
		this.flower = flower;
		this.grade = grade;
	}

	@Override
	public String toString() {
		return "[" + flower + number + "]";
	}

	public char getNumber() {
		return number;
	}

	public void setNumber(char number) {
		this.number = number;
	}

	public char getFlower() {
		return flower;
	}

	public void setFlower(char flower) {
		this.flower = flower;
	}

	public int getGrade() {
		return grade;
	}

	public void setGrade(int grade) {
		this.grade = grade;
	}

	@Override
	public int compareTo(Card o) {
		return o.grade - this.grade;
	}

}
           

結果：