Just finished free Java course, don't know what to do next


any advice on where to go from here?


Try a Google search..

["Java course online"]
- https://www.coursera.org/courses?query=java
- https://www.udemy.com/java-tutorial/
- http://www.learnjavaonline.org/




Hi As per my opinion, you have to become an expert in one of the given language but you need to know the basic concept of the technology which are associated with your reliable community.
if you have done java then you can get you solution from here: https://hackr.io/tutorials/learn-java