About processing you can find more from processing website.
Processing is a flexible software sketchbook and a language for learning
how to code within the context of the visual arts. Since 2001,
Processing has promoted software literacy within the visual arts and
visual literacy within technology. There are tens of thousands of
students, artists, designers, researchers, and hobbyists who use
Processing for learning and prototyping.
Is simple to use. You can used with java also with python and android mode.
Come with many examples and tutorials.
Today I tested with Fedora 25 alpha.
I download the 64bits tgz file. I extract the archive into my home user.
I used the binary file to run it and I install some modes from menu Tools and them Modes tab.
I run one simple code to see if is running without errors.
And working well, see the result: