摘要: List,Set,Map是否继承自Collection接口? 答:List,Set是,Map不是。 如图: Collection ├List │├LinkedList │├ArrayList │└Vector │ └Stack └Set Map ├Hashtable ├HashMap └WeakHa 阅读全文
posted @ 2016-06-13 16:17 KingWang588 阅读(200) 评论(0) 推荐(0) 编辑