Java Primitive Types: int vs. Integer

Question

I am confused about when to use primitive vs. non-primitive(?) types (i.e. int vs. Integer) in Java. I realize that in some places you can\'t use primitive types (for exampl

Answer 1

There is a slight penalty for converting between the types (autoboxing). Also int will have a bit less overhead so I would always go with int if you can.

Also see this question: When to use primitive and when reference types in Java