JDK1.6 集合类 UML 图， 更好的使用Collection类。
Sets:

http://fhqllt.iteye.com/upload/attachment/129914/6106dddf-0429-3e3e-8535-cea9d21851a6.jpg

Lists (no need Vector)
http://fhqllt.iteye.com/upload/attachment/129913/a40d52f7-8ce4-35cb-ab81-355815cab830.jpg


Map:
http://fhqllt.iteye.com/upload/attachment/129911/b6572aca-618a-3e08-a3a0-943cf9e383e4.jpg 


Queues:
http://fhqllt.iteye.com/upload/attachment/129916/72eedb3b-f47b-37c9-a1db-8e57da1be93e.jpg