简易扑克牌游戏，JAVA入门第三季，请多多指教

创建手牌时参考了"中天123"同学的代码，此处附上链接：
http://www.imooc.com/article/5299

写得比较乱，请见谅。

Poker类：

package com.kkkk;

import java.util.Comparator;

public class Poker {
    private int  huadx;
    private int shudx;

    private String hua;
    private String shu;

    public Poker(int huadx,int shudx, String hua, String shu) {
        this.huadx=huadx;
        this.shudx=shudx;
        this.hua = hua;
        this.shu = shu;
    }

    public Integer getHuadx() {
        return huadx;
    }

    public void setHuadx(int huadx) {
        this.huadx = huadx;
    }

    public Integer getShudx() {
        return shudx;
    }

    public void setShudx(int shudx) {
        this.shudx = shudx;
    }

    public String getHua() {
        return hua;
    }

    public void setHua(String hua) {
        this.hua = hua;
    }

    public String getShu() {
        return shu;
    }

    public void setShu(String shu) {
        this.shu = shu;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + huadx;
        result = prime * result + shudx;
        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 (this.shudx != other.shudx)
            {return false;}
        else{
            return true;
        }

    }

}

PokerComparator类：

package com.kkkk;

import java.util.Comparator;

public class PokerComparator implements Comparator<Poker> {

    @Override
    public int compare(Poker o1, Poker o2) {

        if(o1.getShudx()!=o2.getShudx())
            return (o1.getShudx()).compareTo(o2.getShudx());
            else
                return(o1.getHuadx().compareTo(o2.getHuadx()));
    }

}

Main：

package com.kkkk;

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

public class Main {
    public List pokerAll;

    public Main() {
        this.pokerAll = new ArrayList();

    }

    public void addCard() {
        String num = "";
        for (int i = 0; i < 13; i++) {
            num = "";
            if (i == 0)
                num = "A";
            else if (i == 10)
                num = "J";
            else if (i == 11)
                num = "Q";
            else if (i == 12)
                num = "K";
            else
                num = "" + (i + 1);
            pokerAll.add(new Poker(4, i, "黑桃", num));
            pokerAll.add(new Poker(3, i, "红桃", num));
            pokerAll.add(new Poker(2, i, "梅花", num));
            pokerAll.add(new Poker(1, i, "方块", num));

        }

        for (Object c : pokerAll) {
            Poker cd = (Poker) c;
            System.out.print(cd.getHua() + cd.getShu() + "  ");

        }

    }

    public void xi() {
        Collections.shuffle(pokerAll);

    }

    public void student() {
        List getAll = new ArrayList();

        Poker get0 = (Poker) pokerAll.get(0);
        getAll.add(get0);
        Poker get1 = (Poker) pokerAll.get(1);
        getAll.add(get1);
        Poker get2 = (Poker) pokerAll.get(2);
        getAll.add(get2);
        Poker get3 = (Poker) pokerAll.get(3);
        getAll.add(get3);

        System.out.println("请输入第一位学生的ID");

         while(true) {
             try {
                  Scanner sc1 = new Scanner(System.in);
                   int id1 = sc1.nextInt();
                   break;
              } catch (Exception e) {
                  System.out.println("请输入一个正整数ID值：");

              }}

        System.out.println("请输入第一位学生的姓名");
        Scanner sc=new Scanner(System.in);
        String name1 = sc.next();
        System.out.println("请输入第二位学生的ID");

         while(true) {
            try {
                 Scanner sc1 = new Scanner(System.in);
                  int id2 = sc1.nextInt();
                  break;
             } catch (Exception e) {
                 System.out.println("请输入一个正整数ID值：");

             }}

        System.out.println("请输入第二位学生的姓名");
        String name2 = sc.next();
        System.out.println("欢迎玩家:   " + name1 + "  和     " + name2);
        System.out.println("********开始发牌");
        System.out.println("********发牌结束");
        System.out.println("********开始游戏");
        System.out.println("玩家1:" + name1 + " 的手牌为:   " + get0.getHua()
                + get0.getShu() + "  和      " + get2.getHua() + get2.getShu());
        System.out.println("玩家2:" + name2 + " 的手牌为:   " + get1.getHua()
                + get1.getShu() + "  和      " + get3.getHua() + get3.getShu());
        Collections.sort(getAll, new PokerComparator());
        Poker temp = (Poker) getAll.get(3);
        if (temp.equals(get0)temp.equals(get2)) {
            System.out.println("恭喜" + name1 + "胜利！！");
        } else
            System.out.println("恭喜" + name2 + "胜利！！");

    }

    public static void main(String[] args) {

        Main pa = new Main();
        System.out.println("*********创建扑克牌");

        pa.addCard();
        System.out.println("\n**********开始洗牌");
        pa.xi();

        System.out.println("**********洗牌结束");
        System.out.println("***********创建玩家");
        pa.student();

    }

}