2016 年 2月 9 日随笔档案 - gyt929458988

2016年2月9日

摘要： LinkedHashSet is an extended version of HashSet. HashSet doesn’t follow any order where as LinkedHashSet maintains insertion order. HashSet uses HashM 阅读全文

posted @ 2016-02-09 19:41 gyt929458988 阅读(1737) 评论(0) 推荐(1)

HashSet,TreeSet,LinkedHashSet的比较

摘要： A Set contains no duplicate elements. That is one of the major reasons to use a set. There are 3 commonly used implementations of Set: HashSet, TreeSe 阅读全文

posted @ 2016-02-09 17:11 gyt929458988 阅读(714) 评论(0) 推荐(0)

LinkedHashSet的学习

摘要： As you already know, LinkedHashSet is an ordered version of HashSet. That means, HashSet doesn’t maintain any order where as LinkedHashSet maintains i 阅读全文

posted @ 2016-02-09 16:50 gyt929458988 阅读(324) 评论(0) 推荐(0)

TreeSet的学习

摘要： TreeSet is another popular implementation of Set interface along with HashSet and LinkedHashSet. All these implementations of Set interface are requir 阅读全文

posted @ 2016-02-09 15:41 gyt929458988 阅读(225) 评论(0) 推荐(0)

fail-fast实现机制

摘要： Arraylist,HashMap,HashSet等容器持有的的fail-fast迭代器，具体实现原理和modcount域有关. Lets looks at following code 01 public class FailFastIteratorTest { 02 03 public stat 阅读全文

posted @ 2016-02-09 10:49 gyt929458988 阅读(418) 评论(0) 推荐(0)

fail-fast与fail-safe

摘要：今天看hashmap源码的时候遇见了fail-fast这个名词，找了一篇博客，学习一下： What is fail safe and fail fast Iterator in Java? Java Collections supports two types of Iterator, fail s 阅读全文

posted @ 2016-02-09 09:21 gyt929458988 阅读(742) 评论(0) 推荐(0)