package com.inmind.map01; import java.util.HashMap; import java.util.LinkedHashMap; import java.util.Map; /* 6.LinkedHashMap的特点 hash:哈希表,它的作用去重,通过hashCode和equals link:链表,保证有序 LinkedHashMap:存取有序,没有索引,不能重复的,一个双列集合 */ public class LinkedHashMapDemo05 { public static void main(String[] args) { Map maps = new HashMap<>(); maps.put("刘备","孙尚香"); maps.put("吕布","貂蝉"); maps.put("张飞","夏侯驰"); System.out.println(maps); System.out.println("-------------"); LinkedHashMap linkedMaps = new LinkedHashMap<>(); linkedMaps.put("吕布","貂蝉"); linkedMaps.put("张飞","夏侯驰"); linkedMaps.put("刘备","孙尚香"); System.out.println(linkedMaps); } }