以后还会不断更新 http://www.javacodegeeks.com http://www.javaworld.com/ https://groups.google.com/forum/#!forum/comp.lang.java http://coolshell.cn/articles/8088.html（国内的,不过很多事源于国外） http://www.skork

hashMap如何工作 http://howtodoinjava.com/2012/10/09/how-hashmap-works-in-java/ hashCode()和equals()方法相关分析 http://howtodoinjava.com/2012/10/09/working-with-hashcode-and-equals-methods-in-java/ 如何设计好的h

http://howtodoinjava.com/2013/03/06/object-initialization-best-practices-internal-caching-in-wrapper-classes/

http://www.moreofit.com/similar-to/www.infoworld.com/Top_10_Sites_Like_Infoworld/