Should... but I went through all that downloading and installing and tried a few examples by randomly copying some of the examples from this site (
http://www.processing.org/learning/topics/) and running them. About 6 of 10 don't run and there was always some suspicious git-error-message.
Now please don't tell me that git is some thingamagick of whatever - I don't care what that is and I don't want to know - the Eclipse-IDE already is too much and totally counterstrikes the Processing-philosophy of a small and all-in-one, easy to handle language and programming environment which is the main reason that I use Processing.
I'm just a beginner at novice level and before I try to setup a couple of different libs and jars and cores and download a dozen of additional programs, dlls or whatever I'll dump the whole stuff into the recycle bin and give up on learning Processing since that is too much and changes the feeling from somewhat that I can handle to some menacing skyscraper that I might get clubbered over my head with.
In Processing I only miss some code-overview that allows to access a certain line of code - to jump into some functions or some classes code real quick instead of always searching the position, which uses up too much time and makes me loose the overview. I do not need an IDE with dozens of windows, treeviews and other fancy stuff that wastes the space on my screen and is just of use to experienced java-programmers. If there's too many things which I don't know, I get kind'a scared off from it...
I just want to use my cute little processing in some cute little IDE with a little more overview of my code and I don't want a low-level Java-VM-analyzer with built-in airplane-controls nor remote a space ship...