功能描述
1、创建扑克牌。包括四种花色（黑桃，红心，梅花，方块），十三种点数（2-10，J，Q，K），不考虑大小王。
2、创建两个玩家。包括玩家id、姓名、手牌等集合，手牌为扑克牌的集合。
3、洗牌。将创建好的扑克牌打乱。
4、发牌。将洗牌之后的扑克牌集合，从第一张开始，发给两个玩家，安装一人 一张的方式，每人发两张。
5、游戏。比较两名玩家手中的扑克牌。规则为：去两名玩家手上点数最大的牌进行比较，点数大的赢，若点数一样大，就按照色花进行比较。
难点分析：
1、洗牌，如何将扑克牌进行打乱。（主要知识点Random，list.contains()）
2、扑克牌如何进行大小比较。（主要知识点collections.sort() , comparable）
实现代码
Card.java(扑克牌类)
package com.betty.dome2; public class Card implements Comparable<Card>{// 牌面private String num;// 花色private String name;public Card(){}public Card(String num,String name){this.num = num;this.name = name;}public String getNum() {return num;}public void setNum(String num) {this.num = num;}public String getName() {return name;}public void setName(String name) {this.name = name;} @Overridepublic int hashCode() {final int prime = 31;int result = 1;result = prime * result + ((name == null) ? 0 : name.hashCode());result = prime * result + ((num == null) ? 0 : num.hashCode());return result;} @Overridepublic boolean equals(Object obj) {if (this == obj)return true;if (obj == null)return false;if (getClass() != obj.getClass())return false;Card other = (Card) obj;if (name == null) {if (other.name != null)return false;} else if (!name.equals(other.name))return false;if (num == null) {if (other.num != null)return false;} else if (!num.equals(other.num))return false;return true;}// 获取牌面大小private Integer getNumValue(String num){switch(num){case "A": return 12;case "2": return 13;case "3": return 1;case "4": return 2;case "5": return 3;case "6": return 4;case "7": return 5;case "8": return 6;case "9": return 7;case "10": return 8;case "J": return 9;case "Q": return 10;case "K": return 11;}return -1;}// 获取花色大小private Integer getNameValue(String name){switch(name){case "黑桃": return 4;case "红心": return 3;case "梅花": return 2;case "方块": return 1;}return -1;}@Overridepublic int compareTo(Card card) {// 如果牌面相同就看花色int numCompare = getNumValue(this.num).compareTo(getNumValue(card.num));if(numCompare == 0){return getNameValue(this.name).compareTo(getNameValue(card.name));}return numCompare;}}
Player.java（角色类）
package com.betty.dome2; import java.util.ArrayList;import java.util.List; public class Player {// 角色idprivate Integer ID;// 角色姓名private String name;// 角色获得的牌List<Card> cardList;public Player(){}public Player(Integer ID,String name){this.ID = ID;this.name = name;this.cardList = new ArrayList<Card>();} public Integer getID() {return ID;} public void setID(Integer iD) {ID = iD;} public String getName() {return name;} public void setName(String name) {this.name = name;}}
Welcome.java（主程序）
package com.betty.dome2; import java.util.ArrayList;import java.util.Collections;import java.util.List;import java.util.Random;import java.util.Scanner; public class Welcome {String[] nums = {"2","3","4","5","6","7","8","9","10","J","Q","K","A"};String[] names = {"黑桃","红心","梅花","方块"};List<Card> cardStartList; // 开始创建扑克牌时的序列List<Card> cardEndList; // 洗牌后的序列List<Player> playerList; // 玩家列表public Welcome(){this.cardStartList= new ArrayList<Card>();this.cardEndList = new ArrayList<Card>();this.playerList = new ArrayList<Player>();}// 创建扑克牌void createCard(){System.out.println("-----------创建扑克牌---------------");for (String name : names) {for (String num : nums) {cardStartList.add(new Card(num,name));}}System.out.println("---------扑克牌创建成功--------------");System.out.print("[");for(int i=0;i<cardStartList.size();i++){Card card = cardStartList.get(i);if(i%13!=0) System.out.print(",");if((i+1)%13==1 && i!=0){System.out.println("]");System.out.print("[");}System.out.print(card.getName()+card.getNum());}System.out.println("]");}// 洗牌void shuffleCard(){System.out.println("-----------开始洗牌---------------");Random random = new Random();Integer listSize = cardStartList.size();for(int i=0;i<listSize;i++){Card cd = new Card();do{cd = cardStartList.get(random.nextInt(listSize));}while(cardEndList.contains(cd));cardEndList.add(cd);}System.out.println("-----------洗牌结束---------------");}// 输入角色姓名@SuppressWarnings("resource")private String getName() {System.out.print("输入姓名:");Scanner input = new Scanner(System.in);return input.next();}// 输入角色id && 输入整数判断@SuppressWarnings("resource")private Integer getId() {Scanner input = new Scanner(System.in);Integer id;while(true){try {System.out.print("输入ID:");id = input.nextInt();break;} catch (Exception e) {System.out.println("请输入整数");input = new Scanner(System.in);}}return id;}// 创建角色private void createPlayers() {Integer playerNum = 2;for(int i=0;i<playerNum;i++){playerList.add(new Player(getId(), getName()));}for (Player player : playerList) {System.out.println("----欢迎玩家 :" + player.getName());}}// 给角色发牌private void sendCard() {System.out.println("-----------开始发牌---------------");int cardSendNum = 2,index = 0;for(int i=0;i<cardSendNum;i++){for(int j=0;j<playerList.size();j++){Player player = playerList.get(j);player.cardList.add(cardEndList.get(index++));System.out.println("----玩家 :" + player.getName()+" 拿牌");}}System.out.println("-----------发牌结束---------------");}// 游戏开始private void playGame() {System.out.println("-----------游戏开始---------------");Card maxCard = new Card("0","方块");Player winner = new Player();for(int i=0;i<playerList.size();i++){Player player = playerList.get(i);List<Card> cardList = player.cardList;Collections.sort(cardList);Card card = cardList.get(cardList.size()-1);if(maxCard.compareTo(card)<0){maxCard = card;winner = player;}System.out.println("----玩家:"+ player.getName()+ "最大的牌为:" + card.getName()+ card.getNum());}System.out.println("-----------玩家:"+winner.getName()+"获胜----------");System.out.println("玩家各自的手牌为:");for(int j=0;j<playerList.size();j++){Player player = playerList.get(j);System.out.print("玩家 :" + player.getName()+"[");for(int i=0;i<player.cardList.size();i++){if(i!=0) System.out.print(",");System.out.print(player.cardList.get(i).getName()+player.cardList.get(i).getNum());}System.out.print("]\n");}}public static void main(String[] args) {Welcome we = new Welcome();we.createCard(); // 创建扑克牌we.shuffleCard(); // 洗牌we.createPlayers(); // 创建角色we.sendCard(); // 给角色发牌we.playGame(); // 游戏开始}}
实现的效果图：
总结
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