乱码？？？

http://blog.csdn.net/youyue/article/details/4580402


java Java多线程与并发库高级应用
http://java.itcast.cn/news/d5d98236/4714/4125/8e87/affa6c0e1a16.shtml

http://java.itcast.cn/java/video.shtml

http://www.itheima.com/java/video.shtml

set HashCode
http://www.iteye.com/topic/257191
http://blog.csdn.net/fenglibing/article/details/8905007
http://blog.sina.com.cn/s/blog_a01ab79d0101bal3.html