How come we have Swift but nothing more advanced in Java?

Question

I'm thinking Spring, build tools, groovy and JEE. Ideally a course each but should double the Java material.

Answer 1

I do hope they more advanced tutorials for all the languages here but the main focus of the app is again to teach beginners not to school those like us who already know the languages. :)

Answer 2

I would have accepted that until I saw the course on Swift. Google showed it was Apple derived. If that didn't make it elite the participation rate would.