package com.core.test;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;public class ObjectListTest {    public static void main(String[] args) {        Object obj = createMap();        if(obj instanceof Map){            Map<String,Object> map =(Map)obj;            System.out.println(map.get("name"));        }        Object obj1 =createList();        if(obj1 instanceof List){            List<String> list = (List)obj1;            for(int i = 0 ; i < list.size() ; i++ ){                System.out.println(list.get(i));            }        }    }        public static Map<String,Object> createMap(){        Map<String, Object> map =new HashMap<String, Object>();        map.put("name", "张飞");        map.put("age","10");                return map;    }        public static List<String> createList(){        List<String> list =new ArrayList<String>();        for(int i = 0 ; i < 10 ; i++){            list.add("吕布"+i);        }        return list;    } }

张飞吕布0吕布1吕布2吕布3吕布4吕布5吕布6吕布7吕布8吕布9