What is core java and advanced java [duplicate]

Question

I hear most of the the time people say core java and advanced java.I like to know what is the difference between core java and advanced java.

Answer 1

"Core Java" is AFAIK not an official, well-defined term. It is, however, the title of a book from Sun that introduces Java as a language and the most important parts of the Java SE Standard API - and that's probably what most people think of when they hear the term.

"Advanced Java" would then be everything that goes beyond that - most importantly the APIs defined in Java Enterprise Edition, i.e. Servlet programming, Web Services, the Java Persistence API, etc.

Answer 2

I don't who "people" are, but they might refer to Java SE as "core" and Java EE as "advanced".