Can a primitive value be considered an object in java?

Question

When I started out using Java, it was implied to me that we have two different types:

Objects (strings, from classes, println, etc)
primitive values (int, do         


        

Answer 1

There is an implicit mapping between primitives and objects, so an int can be used where an Integer is expected. It is a feature called autoboxing.

For example:

Integer foo = 4; // 4 is really an int

Also, primitives have things in common with objects. They have a Class, such as int.class.

It should also be noted that all arrays are objects.

However, the notion of Object vs primitive is one of the worst thing there is in Java. A lot of modern languages simply don't make too much difference between them, or even don't have any primitives. (In java as well, you can do everything without ever using explicitly a primitive).