本文是微信公众号【Java技术江湖】的《Java并发指南》其中一篇，本文大部分内容来源于网络，为了把本文主题讲得清晰透彻 ...

Furthermore, the Java API provides a special class called the ConcurrentHashMap which offers synchronization facilities over and above both that of the HashMap and Hashtable. The special class ...