java之斗地主

hashmap集合+ArrayList集合+Collections集合工具类shuffle()和sort（）
hashmap中get(key)、put(key/value)
Arraylist中的add()、get(下标值)，此时ArrayLIST集合相当于hashmap中的set集合，可以使用迭代器或者增强for遍历内容
                               或者不使用Arraylist,直接使用entryset得到Map.entry<E>,使用getkey和getvalue得到key值
 1 package com.oracle.demo01;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap; public class Doudizhu {
    public static void main(String[] args) {
   //定义扑克牌Map   默认按照key值从小到大排序
     HashMap<Integer,String>  pooker=new HashMap<Integer,String>();
     //定义装有扑克牌号的集合   单独的与map集合数字一致2
      ArrayList<Integer> pookerNum=new ArrayList<Integer>();
      //封装数据  4种花色（13个牌）+大小王
     String[] color={"♡","","♧","◇"};//点击选择utf-8保存
     String[]  number={"","A","K","Q","J","","","","","","","",""};
    //嵌套for循环，先数字，后花色
     int index=;
     for(String n:number){
      for(String c:color){
       pooker.put(index,c+n);
       pookerNum.add(index);
       index++;
      }
     }
     //封装大小王
     pooker.put(, "大王");
     pooker.put(, "小王");
     pookerNum.add();
     pookerNum.add();     //测试
    // System.out.println(pooker);
       //洗牌
     Collections.shuffle(pookerNum);
     //创建四个容器
     ArrayList<Integer>  player1=new  ArrayList<Integer>();
     ArrayList<Integer>  player2=new  ArrayList<Integer>();
     ArrayList<Integer>  player3=new  ArrayList<Integer>();
     ArrayList<Integer>  bottom=new  ArrayList<Integer>();
     for(int i=;i<pookerNum.size();i++){
      if(i<){
       bottom.add(pookerNum.get(i));
      }else if(i%==){
       player1.add(pookerNum.get(i));
      }else if(i%==){
       player2.add(pookerNum.get(i));
      }else if(i%==){
       player3.add(pookerNum.get(i));
      }
     }
     //排序
     Collections.sort(player1);
     Collections.sort(player2);
     Collections.sort(player3);
     Collections.sort(bottom);
     //遍历看牌
     System.out.println();
     look("",pooker,player1);
     look("",pooker,player2);
     look("",pooker,player3);
     look("底牌",pooker,bottom);
    }
    //通用的方法
    public static void look(String Name,HashMap<Integer,String>  pooker,
      ArrayList<Integer>  bottom){
     System.out.print(Name+":");
     for(Integer number:bottom){
      System.out.print(pooker.get(number)+"  ");
     }
     System.out.println();
    }
 }

 package com.oracle.demo01; import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.Iterator; public class DouDiZhu3 {
 public static void main(String[] args) {
     //定义map集合
     HashMap<Integer,String> big=
             new HashMap<Integer,String>();
     ArrayList<Integer> arr=new ArrayList<Integer>();
     //封装数据，通过内外循环，拼接字符串
     String[] arr1={"♣","◇","♠","♥"};
     String[] arr2={"","A","K","Q","J","","","","","","","",""};
     //拼接字符串，并存入map集合中
     int index=;
     for(String r2:arr2){
         for(String r1:arr1){
             //必须创建不同的对象，进行存储
             arr.add(index);
             //System.out.println(arr);
             big.put(index, r1+r2);
         /*    //对arr进行整体的清空
             arr.clear();*/
             index++;
         }
     }
     //封装大小王
     big.put(, "大王");
     big.put(, "小王");
     arr.add();
     arr.add();
     //此时为一个对象，会出现值覆盖问题
     /*big.put(new ArrayList<Integer>(0), "大王");
     big.put(new ArrayList<Integer>(1), "小王");*/
     //测试是否存储成功，map自己调用tostring()
     System.out.print(big);
      //洗牌
     Collections.shuffle(arr);
     //创建四个容器
     ArrayList<Integer>  player1=new  ArrayList<Integer>();
     ArrayList<Integer>  player2=new  ArrayList<Integer>();
     ArrayList<Integer>  player3=new  ArrayList<Integer>();
     ArrayList<Integer>  bottom=new  ArrayList<Integer>();
     for(int i=;i<arr.size();i++){
      if(i<){
       bottom.add(arr.get(i));
      }else if(i%==){
       player1.add(arr.get(i));
      }else if(i%==){
       player2.add(arr.get(i));
      }else if(i%==){
       player3.add(arr.get(i));
      }
     }
     //排序
     Collections.sort(player1);
     Collections.sort(player2);
     Collections.sort(player3);
     Collections.sort(bottom);
     //遍历看牌
     System.out.println();
     look("",big,player1);
     look("",big,player2);
     look("",big,player3);
     look("底牌",big,bottom);
    }
    //通用的方法
    public static void look(String Name,HashMap<Integer,String>  big,
      ArrayList<Integer>  bottom){
     System.out.print(Name+":");
    //创建迭代器对象  数据类型与要遍历的集合数据类型一致
     Iterator<Integer> i=bottom.iterator();
     while(i.hasNext()){
         int ii=i.next();//对象调用
         System.out.print(big.get(ii)+"   ");
     }
    System.out.println();
    }
 }