What is the difference between java and core java?

Question

When looking at job openings on-line, I noticed that some openings required knowledge of \"core Java\". What is core java and how is different from java?

Answer 1

I think when you see the phrase "core Java," they are talking about the basics of the language and maybe some knowledge of Java SE. I don't know why they would bother to put the "core" on there.

Answer 2

"Core Java" is Sun Microsystem's term, used to refer to Java SE. And there are Java ME and Java EE (J2EE). So this is told in order to differentiate with the Java ME and J2EE. So I feel Core Java is only used to mention J2SE.

Happy learning!

Answer 3

Core Java is Sun Microsystem's, used to refer to Java SE. And there are Java ME and Java EE (J2EE). So this is told in order to differentiate with the Java ME and J2EE. So I feel Core Java is only used to mention J2SE.

Java having 3 category:

J2SE(Java to Standard Edition) - Core Java

J2EE(Java to Enterprises Edition)- Advance Java + Framework

J2ME(Java to Micro Edition)

Thank You..

Answer 4

According to some developers, "Core Java" refers to package API java.util.*, which is mostly used in coding.

The term "Core Java" is not defined by Sun, it's just a slang definition.

J2ME / J2EE still depend on J2SDK API's for compilation and execution.

Nobody would say java.util.* is separated from J2SDK for usage.

Answer 5

Some companies will put "core java" to differentiate from Java EE, but it's still just your basic Java.

Answer 6

In simple language core java stands for the concepts of Inheritance, Polymorphism,Abstraction,Encapsulation,class,objects which comes under core java. Core java stands for J2SE. I hope this can clear you doubts.