http://sourcemaking.com/ design pattern,anti-pattern,uml,refactoring

http://www.filecrop.com/ 電子書搜尋

http://www.filestube.com/ filetube

http://www.java2s.com/Code/Java/Design-Pattern/CatalogDesign-Pattern.htm example code

http://jibbering.com/faq/notes/closures/ closures faq