今天学完了Java入门第三季的最后一课，完成了课后作业，实现了简易扑克游戏。游戏很简单，代码实现也不难，但做了这个很能理解Java面向对象的作用。 就这个游戏而言，我主要是分为三个class：Poker，Player，Game。

• 扑克牌类，包含元素是扑克牌的点数和花色，并且定义扑克牌之间比较大小的规则。
• 玩家类复杂点，除了玩家的ID和名字，还有所拥有的手牌，在后面发现游戏用到的最大手牌，也设在玩家类里，这样能更好处理对应关系。
• 主程序main在Game里面，把游戏的整个过程实现出来，分步用成员函数实现：新建整副扑克牌，产生游戏玩家，洗牌，发牌，开始游戏。

剩下的代码来展示，注释比较少，但输出的提示应该够看了。

package com.imooc.homework;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

/**
 * Created by LinHongwei on 2017/9/14.
 */
public class Game {
    private final String[] cardPointArr={"A","K","Q","J","10","9","8","7","6","5","4","3","2"};
    private final String[] cardTypeArr={"黑桃","红桃","梅花","方块"};
    private List allPoker;
    private List players;

    public void createPokerCards(){
        allPoker = new ArrayList();
        System.out.println("~~~~~~~~~创建并展示所有扑克牌~~~~~~~~~~");
        for(int i=0;i();
        System.out.println("请输入第一个玩家的ID：");
        id=console.next();
        System.out.println("请输入第一个玩家的姓名");
        name=console.next();
        Player player1=new Player(id,name);
        players.add(player1);
        System.out.println("~~~~~欢迎玩家："+player1.getName());

        System.out.println("请输入第二个玩家的ID：");
        id=console.next();
        System.out.println("请输入第二个玩家的姓名");
        name=console.next();
        Player player2=new Player(id,name);
        players.add(player2);
        System.out.println("~~~~~欢迎玩家："+player2.getName());
    }

    public void shuffleCard() {
        System.out.println("——————————开始洗牌——————————");
        Collections.shuffle(allPoker);
        System.out.println("——————————洗牌结束——————————");
    }

    public void dealCard(){
        System.out.println("——————————开始发牌——————————");
        for(int i=0;imaxCards=new ArrayList();
        for(int i=0;i

package com.imooc.homework;

import java.util.*;

/**
 * Created by LinHongwei on 2017/9/14.
 */
public class Poker implements Comparable{
    private String type;
    private String Num;
    public Poker(String a,String b){
        Num=a;
        type=b;
    }
    public Poker(){

    }

    public String getInfo(){
        return Num+"-"+type;
    }

    @Override
    public int compareTo(Poker o) {
        final String[] cardPointArr={"A","K","Q","J","10","9","8","7","6","5","4","3","2"};
        final String[] cardTypeArr={"黑桃","红桃","梅花","方块"};
        List cardPointList= Arrays.asList(cardPointArr);
        List cardTypeList= Arrays.asList(cardTypeArr);
        int a,b;
        a=cardPointList.indexOf(this.Num);
        b=cardPointList.indexOf(o.Num);
        if(ab) return -1;
        else{
            a=cardTypeList.indexOf(this.type);
            b=cardTypeList.indexOf(o.type);
            if(ab) return -1;
            else return 0;
        }
    }

    public static void main(String[] args){
        Poker A=new Poker("A","黑桃");
        Poker B=new Poker("4","黑桃");
        Poker C=new Poker("A","方块");
        List list= new ArrayList();
        list.add(A);
        list.add(B);
        list.add(C);
        Collections.sort(list);
        for(int i=0;i

package com.imooc.homework;

import javax.sql.PooledConnection;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

/**
 * Created by LinHongwei on 2017/9/14.
 */
public class Player {
    private String id;
    private String name;
    private List hasCards;
    private Poker maxCard;

    public Player(String id, String name) {
        this.id = id;
        this.name = name;
        hasCards = new ArrayList();
        maxCard = new Poker();
    }

    public List getHasCards() {
        return hasCards;
    }

    public String getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public Poker getMaxCard() {
        Collections.sort(this.hasCards);
        this.maxCard =this.hasCards.get(1);
        return maxCard;
    }

}