入门第三季——扑克牌比大小

1.变量作用域没考虑好，导致有一个方法写得有点过长
2.洗牌一开始直接用random换牌，比较粗暴但麻烦。后来发现可以用collection.shuffle方法
3.弄拙成巧，加上了自定义哪个玩家先拿牌的代码

package pokergame;

public class Errorinput extends Exception {

    public Errorinput(){

    }
    public Errorinput(String message){
        super(message);
    }
}

package pokergame;

public class Poker {

    public String color;
    public String number;
    public Poker(String color, String number){
        this.color=color;
        this.number=number;
    }}

package pokergame;

import java.util.Comparator;

public class Compare implements Comparator<Poker> {

    public int compare(Poker arg0, Poker arg1) {
         String color="黑桃  红桃 梅花 方块";
         String numbers="2 3 4 5 6 7 8 9 10 J Q K A";
         int result=numbers.indexOf(arg0.number)-numbers.indexOf(arg1.number);
         if(result<0){
                return -1;
            }else if(result>0){
                return 1;
            }else {
                int result2=color.indexOf(arg0.color)-color.indexOf(arg0.color);
                if(result2>0){
                    return 1;
                }else if(result<0){
                    return -1;
                }else{
                    return 0;
                }
            } 
        }

}

package pokergame;

public class User {

    public String name;
    public String[] pai;

    public User(String name, String[] pai){
        this.name=name;
        this.pai=pai;

    }
}

package pokergame;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.Scanner;

public class Pokergamesystem {
    public List<Poker> poker;
    public Map<Integer, User> users;
    public Pokergamesystem(){
        this.poker=new ArrayList<Poker>();
        this.users=new HashMap<Integer,User>();
    }
    /**
     * 生成一副扑克牌
     */
    public void pokergenerator(){
        System.out.println("-------开始生成扑克牌");
        String[] hua={"黑桃","红桃","梅花","方块"};
        String[] shu={"2","3","4","5","6","7","8","9","10","J","Q","K","A"};
        for(int i=0;i<4;i++){
            String hua1=hua[i];
            for(int j=0;j<13;j++){
                String shu1=shu[j];
                Poker pk=new Poker(hua1,shu1);
                poker.add(pk);  
            }
        }
        System.out.println("-------纸牌初始化完毕,为");
        for (Object obj : poker) {
            Poker pk=(Poker)obj;
            System.out.print(pk.color+pk.number+" ");
        }
        System.out.println(" ");
    }
    /**
     * id输入部分，要求输入的数据类型必须为integer类型，否则会抛出异常
     * @throws Errorinput
     */
    public int userid(int i) throws Errorinput{
        System.out.println("请输入第"+i+"个玩家的id号");
        Scanner sc=new Scanner(System.in);
        String input=sc.next().trim();
        int number;
        try{
            number=Integer.parseInt(input);
            return number;
        }catch(Exception e){
            throw new Errorinput("请输入数字形式的id");
        }
    }
    /**
     * 生成两名玩家
     */
    public void usergenerator(){
        int i=1;
        while(i<3){
        try{
            int id=userid(i);
            // 判断该ID是否被占用（一开始没有在构造器中初始化users，导致报错）
            User us= users.get(id);
            if(us==null){
                System.out.println("请输入玩家昵称");
                Scanner sc=new Scanner(System.in);
                String name=sc.next();
                User newuser= new User(name,null);
                users.put(id, newuser);
                System.out.println("成功添加玩家:"+users.get(id).name);
                i++;
            }
            else{
                System.out.println("该玩家id已被占用，请重新输入！");
            }
        }catch(Errorinput e){
            System.out.println(e.getMessage());
        }}
    }
    /**
     * 洗牌，基本思想为交换list中任意两个对象的位置，重复1000次
     */
    public void neworder(){
//      for(int s=0;s<1000;s++){
//          int number1=new Random().nextInt(52);
//          int number2=new Random().nextInt(52);
//          Poker pk1=(Poker)poker.get(number1);
//          Poker pk2=(Poker)poker.get(number2);
//          String temp1 = pk2.color;
//          String temp2 = pk2.number;
//          pk2.color=pk1.color;
//          pk2.number=pk1.number;
//          pk1.color=temp1;
//          pk1.number=temp2;//直接将poker的值对换是不行的，
//                        //可能是因为自带了索引位置信息，所以即使对换还是在原来的位置？
//      }
        Collections.shuffle(poker);
        System.out.println("");
        System.out.println("--------洗牌结束");
        for (Object obj : poker) {
            Poker pk=(Poker)obj;
            System.out.print(pk.color+pk.number+" ");
            System.out.print(" ");
        }
    }
    public void giveandcompare(){
        //give
        System.out.println("\n"+"请输入先得牌玩家的id号");
        Scanner sc1=new Scanner(System.in);
        String input1=sc1.next();
        Integer id1=Integer.parseInt(input1);
        System.out.println("请输入后得牌玩家的id号");
        Scanner sc2=new Scanner(System.in);
        String input2=sc2.next();
        Integer id2=Integer.parseInt(input2);
        List<Poker> user1=new ArrayList<Poker>();
        List<Poker> user2=new ArrayList<Poker>();
        for(int i=0;i<2;i++){
            System.out.println(users.get(id1).name+"得牌");
            user1.add(poker.get(2*i));
            System.out.println(users.get(id2).name+"得牌");
            user2.add(poker.get(2*i+1)); 
        }
        System.out.println(users.get(id1).name+"你得到了：");
        for (Poker poker : user1) {
            System.out.println(poker.color+poker.number);
        }
        Collections.sort(user1,new Compare());
        System.out.println("  the biger card is :"+user1.get(1).color+" "+user1.get(1).number);
        System.out.println(users.get(id2).name+"你得到了：");
        for (Poker poker : user2) {
            System.out.println(poker.color+poker.number);
        }
        Collections.sort(user2,new Compare());
        System.out.println("  the biger card is :"+user2.get(1).color+" "+user2.get(1).number);
        //compare
        List<Poker> lastcards=new ArrayList<Poker>();
        lastcards.add(user1.get(1));
        lastcards.add(user2.get(1));
        Collections.sort(lastcards,new Compare());
        if(lastcards.get(1).color.equals(user1.get(1).color)lastcards.get(1).number.equals(user1.get(1).number)){
            System.out.println("\n"+users.get(id1).name+" is the winner!");
        }else{
            System.out.println("\n"+users.get(id2).name+" is the winner!");
        }

    }
    public static void main(String[] args) {
        Pokergamesystem pks=new Pokergamesystem();
        pks.pokergenerator();
        pks.usergenerator();
        pks.neworder();
        pks.giveandcompare();
    }

}