安道生練功房 - 分享經驗，累積智慧

Hi, i am learning java servlet + freemarker, and i have a problem like this subject,
This is my source, i want to show all categories in browser like file categories.txt in file testmenu.zip, how can i do next step?? my english is bad , i need your help ...

this is my testmenu.zip

http://www.mediafire.com/?qvq9r3wjg27dhch

thank you very much