www.java2blog.com/2016/04/hashmap-in-java-with-examples.html HashMap全剖析
http://card.weibo.com/article/h5/s?from=timeline&isappinstalled=1#cid=1001603859815192504915&from=1053093010&wm=3333_2001&ip=112.229.110.218 传统java转互联网学习
原文：http://www.cnblogs.com/semidy/p/5485055.html