Where from I get deep knowledge about java?

Question

So that I can get job or create my own job

Answer 1

books, camps, tutorials, classes at school, and interships.

Answer 2

oh ok um, uh... try maybe i know this may sound big but, google, Facebook. maybe even a company that sells clothes. there bound to have a website that uses java.

Answer 3

but how I get internship cz I completed my graduation n now m free