Java入门第三季 7-1 简易扑克牌游戏

package test;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class Card implements Comparable<Card>{
    String color;
    String size;
    static List<Card> cards=new ArrayList<Card>();
public Card(String color,String size){
    this.color=color;
    this.size=size;
}
/**
 * 定义纸牌比较规则
 */
public int compareTo(Card o){
    String a="方块梅花黑桃红桃";
    String b="345678910JQKA2";
    int c=b.indexOf(this.size)-b.indexOf(o.size);
    int d=a.indexOf(this.color)-a.indexOf(o.color);
    if(c==0){
        if(d==0){
            return 0;
        }else if(d>0){
            return 1;
        }else {
            return -1;
        }
    }else if(c>0){
            return 1;
        }else {
            return -1;
        }   
}
/**
 * 创建扑克牌对象，加入到cards序列中
 */
public static  void createCard(){
    String colors[]={"红桃","黑桃","梅花","方块"};
    String sizes[]={"2","3","4","5","6","7","8","9","10","J","Q","K","A"};
    System.out.println("******创建扑克牌******");
    for(int i=0;i<colors.length;i++){
        for(int j=0;j<sizes.length;j++){
            Card a=new Card(colors[i],sizes[j]);
            cards.add(a);
        }
    }
    System.out.println("******创建扑克牌成功******");
//  System.out.print("为：[");
//  for(int i=0;i<cards.size()-1;i++){
//      System.out.print(cards.get(i).color+cards.get(i).size+",");
//  }
//  System.out.println(cards.get(cards.size()-1).color+cards.get(cards.size()-1).size+"]");
    String cards1[]=new String[cards.size()];
    for(int i=0;i<cards.size();i++){
        cards1[i]=cards.get(i).color+cards.get(i).size;
    }
    System.out.print("为：");
    System.out.println(Arrays.toString(cards1));
}
}

package test;
import java.util.ArrayList;
import java.util.InputMismatchException;
import java.util.List;
import java.util.Scanner;

public class Player {
    int ID;
    String name;
    List<Card> cards;
    static List<Player>  players=new ArrayList<Player>();
public Player(int ID,String name){
    this.ID=ID;
    this.name=name;
    cards=new ArrayList<Card>();
}
/**
 * 创建num个玩家，加入到players序列中
 * @param num
 */
public static void createPlayer(int num){
    for(int i=1;i<=num;i++){
        System.out.println("请输入第"+i+"个玩家的ID和姓名");
        int b;
        while(true){    
            try{
                Scanner a=new Scanner(System.in);
                System.out.println("输入ID：");
                b=a.nextInt();
                break;
            }catch(InputMismatchException c){
                System.out.println("请输入整数类型的ID！");
            }
        }
        System.out.println("输入姓名");
        Scanner d=new Scanner(System.in);
        String c=d.next();
        Player p=new Player(b,c);
        players.add(p);
    }
}
}

package test;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.Set;
import java.util.HashSet;
import java.util.InputMismatchException;
import java.util.Scanner;
public class Game {
    /**
     * 传入Card型的序列a并打乱顺序
     * @param a
     */
    public void shuffle(List<Card> a){
        System.out.println("******开始洗牌******");
        Collections.shuffle(a);
        System.out.println("******洗牌结束******");
    }
    /**
     * 给序列Player.players中的玩家发牌，每人num张牌
     * @param num
     */
    public void prepare(int num){
        for(Player a:Player.players){
            System.out.println("****欢迎玩家"+a.name);
        }
        System.out.println("******开始发牌******");
        int size=Player.players.size();
        int i=0;int j=0;
        for(int a=0;a<num;a++){
            for(;i<size;i++,j++){
                Player b=Player.players.get(i);
                System.out.println("******"+"玩家："+b.name+"-拿牌");
                b.cards.add(Card.cards.get(j));
            }
            i=0;
        }
        System.out.println("******发牌结束！******");
    }
    /**
     * 显示序列Player.players中玩家的各自手牌
     * 调用此方法在begin()前后显示不同，begin()方法中有对玩家手牌排序操作的代码
     */
    public void playerCardMessage(){
        System.out.println("玩家各自的手牌为：");
        for(int i=0;i<Player.players.size();i++){
            System.out.print(Player.players.get(i).name+"：");
            int size=Player.players.get(i).cards.size();
            String a[]=new String[size];
            for(int j=0;j<size;j++){
                a[j]=Player.players.get(i).cards.get(j).color+Player.players.get(i).cards.get(j).size;
            }
            System.out.println(Arrays.toString(a)); 
        }
    }
    /**
     * 开始游戏，对序列Player.players中玩家的手牌排序，输出各自的最大手牌，并按顺序将各自最大手牌加入到cards1序列中
     * 将cards1序列中的Card对象和下标添加到cards2映射中
     * 对cards1排序，得到序列最后一个card对象，即最大的纸牌
     * 根据最大纸牌对象查找cards2中对应的此对象排序前下标，即序列Player.players中玩家的下标
     * 输出胜者名字
     */
    public void begin(){
        System.out.println("******开始游戏******");
        List<Card> cards1=new ArrayList<Card>();
        Map<Card,Integer> cards2=new HashMap<Card,Integer>();
        for(int i=0;i<Player.players.size();i++){
            Player a=Player.players.get(i);
            Collections.sort(a.cards);
            System.out.println("玩家："+a.name+"最大的手牌为："+a.cards.get(a.cards.size()-1).color+a.cards.get(a.cards.size()-1).size);
            cards1.add(a.cards.get(a.cards.size()-1));
        }
        for(int j=0;j<cards1.size();j++){
            cards2.put(cards1.get(j), j);
        }
        Collections.sort(cards1);
        int winNum=cards2.get(cards1.get(cards1.size()-1));
        System.out.println("******玩家:"+Player.players.get(winNum).name+"获胜！******");
    }
    public static void main(String[]args){
        Game one=new Game();
        Card.createCard();
        one.shuffle(Card.cards);
        Player.createPlayer(3);
        one.prepare(8);
        one.playerCardMessage();
        one.begin();
    }
}