扑克牌游戏代码，没写注解，还望指点！

//Poker.java
package com.imooc;

public class Poker implements Comparable<Poker>{
	private String num;
	private String color;
	
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((color == null) ? 0 : color.hashCode());
		result = prime * result + ((num == null) ? 0 : num.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (!(obj instanceof Poker))
			return false;
		Poker other = (Poker) obj;
		if (color == null) {
			if (other.color != null)
				return false;
		} else if (!color.equals(other.color))
			return false;
		if (num == null) {
			if (other.num != null)
				return false;
		} else if (!num.equals(other.num))
			return false;
		return true;
	}

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

	public String getNum() {
		return num;
	}

	public void setNum(String num) {
		this.num = num;
	}

	public String getColor() {
		return color;
	}

	public void setColor(String color) {
		this.color = color;
	}

	@Override
	public int compareTo(Poker o) {
		// TODO 自动生成的方法存根
		String pokerNum = "2,3,4,5,6,7,8,9,10,J,Q,K,A";
		String pokerColor = "方块,梅花,红桃,黑桃";
		int flag;
		
		flag = pokerNum.indexOf(this.getNum())-pokerNum.indexOf(o.getNum());
		if(flag == 0){
			flag = pokerColor.indexOf(this.getColor())-pokerColor.indexOf(o.getColor());
		}
		return flag;
	}

}

//Player.java
package com.imooc;

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

public class Player {
	private int id;
	private String name;
	private List<Poker> handPoker;
	
	public Player(int id, String name){
		this.id = id;
		this.name = name;
		handPoker = new ArrayList<Poker>();
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public List<Poker> getHandPoker() {
		return handPoker;
	}

	public void setHandPoker(List<Poker> handPoker) {
		this.handPoker = handPoker;
	}

}

//MakePoker.java
package com.imooc;

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

public class MakePoker {
	private List<Poker> pokerList;

	public List<Poker> getPokerList() {
		return pokerList;
	}

	public void setPokerList(List<Poker> pokerList) {
		this.pokerList = pokerList;
	}

	public MakePoker(){
		pokerList = new ArrayList<Poker>();
		String[] nums = {"2","3","4","5","6","7","8","9","10","J","Q","K","A"};
		String[] colors = {"黑桃","红桃","梅花","方块"};
		 
		for(int i=0; i<colors.length; i++){
			for(int j=0; j<nums.length; j++){
				pokerList.add(new Poker(nums[j],colors[i]));
			}
		}
		
		System.out.println("扑克牌有：");
		for (Poker poker : pokerList) {
			System.out.print(poker.getColor()+poker.getNum()+" ");
		}
		System.out.println();
	}
	
	public static void main(String[] args) {
		System.out.println("--------------扑克牌游戏开始--------------");
		System.out.println("--------------创建扑克牌---------------");
		MakePoker mp = new MakePoker();

		System.out.println("扑克牌创建成功!");
		Scanner input = new Scanner(System.in);
		List<Player> playerList = new ArrayList<Player>();
		
		System.out.println("---------------创建玩家----------------");
		for(int i=0; i<2; i++){
			try{
				System.out.println("请输入玩家的id:");
				int id = input.nextInt();
				System.out.println("请输入玩家的名字:");
				String name = input.next();
				playerList.add(new Player(id,name));
				System.out.println("创建玩家"+name+"成功!");
			}catch(Exception e){
				System.out.println("输入的id必须为整型!");
			}
		}
		
		System.out.println("--------------开始洗牌---------------");
		
		Collections.shuffle(mp.getPokerList());
		
		System.out.println("--------------开始发牌---------------");
		for(int j=0; j<2; j++){
			for (Player player : playerList) {
				player.getHandPoker().add(mp.getPokerList().get(0));
				mp.getPokerList().remove(0);
			}
		}
		
		System.out.println("-----------发牌结束开始比较大小----------");
		Collections.sort(playerList.get(0).getHandPoker());
		Collections.sort(playerList.get(1).getHandPoker());
		List<Poker> compareList = new ArrayList<Poker>();
		compareList.add(playerList.get(0).getHandPoker().get(1));
		System.out.println("玩家"+playerList.get(0).getName()+"最大的牌是"+playerList.get(0).getHandPoker().get(1).getColor()+playerList.get(0).getHandPoker().get(1).getNum());
		compareList.add(playerList.get(1).getHandPoker().get(1));
		System.out.println("玩家"+playerList.get(1).getName()+"最大的牌是"+playerList.get(1).getHandPoker().get(1).getColor()+playerList.get(1).getHandPoker().get(1).getNum());
		Collections.sort(compareList);
		
		for (Player player : playerList) {
			if(player.getHandPoker().contains(compareList.get(1))){
				System.out.println("-----------"+player.getName()+"获胜------------");
			}
		}
		 
		for (Player player : playerList) {
			System.out.print("玩家"+player.getName()+"的手牌是:");
			for (Poker poker : player.getHandPoker()) {
				System.out.print(poker.getColor()+poker.getNum()+" ");
			}
			System.out.println("");
		}

	}
}