What should i learn after learning core java??

Question

genuine answer appreciated

Answer 1

there are some concept you must learn
like
Reflection
autoboxing
generic class
collection framework
properities class
jdbc framework..

try to learn these also

Answer 2

How about learning how to use the libraries of Java deeply. (For example, Javafx).

Or trying other language.

Answer 3

okay i will take a quick look at this