A Java specialist designs, develops, and maintains software applications using the Java programming language. They analyze requirements, architect solutions, and write efficient, scalable code.

What can I do with Java and C++ that I can't do with JavaScript? This question was originally answered on Quora by Mattias Petter Johansson.

You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java.