java io

这篇文章不错

http://www.importnew.com/14111.html                           java io底层是如何实现的

http://blog.csdn.net/zxman660/article/details/7875762

http://ifeve.com/overview/

 https://www.ibm.com/developerworks/cn/education/java/j-nio/     nio入门

java io流面试题和选择题:  http://blog.csdn.net/bubble1210/article/details/50839845

阿里巴巴:http://blog.csdn.net/natian306/article/details/10858097