Java类详解

1. System类

http://java.chinaitlab.com/base/819540.html

2. Formatter类

http://blog.sina.com.cn/s/blog_43fd9b8401012x7j.html

3.Pattern 和 Matcher类

http://www.jb51.net/article/17943.htm

4.Scanner类

http://lavasoft.blog.51cto.com/62575/182467/

5.Arrays类

http://blog.sina.com.cn/s/blog_93daad41010115yq.html