http://www.cnblogs.com/xdp-gacl/category/563690.htmlphp
http://www.cnblogs.com/vincent-blog/p/4402327.htmlhtml
day1:java IO流:http://www.cnblogs.com/xdp-gacl/p/3634409.htmljava
Java API:http://dlc-cdn.sun.com/jdk/jdk-api-localizations/jdk-api-zh-cn/publish/1.6.0/html/zh_CN/api/java/io/package-tree.html,http://www.programcreek.com/java-api-examples/index.php?action=indexapi
leetcode的分類總結,很是好:http://www.programcreek.com/2012/11/top-10-algorithms-for-coding-interview/code