Jenny,
I am a consultant and lecturer. I read a lot and know many features (that's my job) but I am not a DBA nor a developer.
Forms & reports - I used them 10 years ago.
HTMLDB and APEX are great - played a bit with them lately
Java .... no idea about that (well, I have an idea but just idea)
I am not a good developer nor a good DBA, but I belive I could be if I start work as a developer/DBA

Regards
Boris