Question: I am doing an pure AS3 programming, and I have urge to work with something like ArrayList because I need an array of objects (which in this case, array class is no use).
However it seems there is no ArrayList class for me to import (Flex has but ...)
I also found an open-source project called as3-collection on internet, but what the hell??? cant find any link to download...

Answer: 
Arrays work just fine with objects, but if you want strict enforcement of datatypes, try the `Vector` class.
You seem to be looking for [ArrayCollection](http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/mx/collections/ArrayCollection.html?filter_flex=4.1&filter_flashplayer=10.1&filter_air=2).

If you'd tell me what you want to do with your array of objects then I could give you a more concise direction to how and what to do. It shouldn't be a problem.