Integer.class vs int.class

Question

What is the difference between Integer.class, Integer.TYPE and int.class?

acc to me

1. Integer.class i

Answer 1

In plain terms :

int -- > Are primitives..for simple math operations. You cannot add them to a collection.

Integer --> Are objects in themselves.. are wrappers to ints. i.e, they can be used with collections (as they are objects). They are collected as normal objects by the GC.

EDIT :

public static void main(String[] args) {
    int i = 5;
    System.out.println(int.class);

    Integer i1 = new Integer(5);
    System.out.println(Integer.TYPE);

}

O/P : int
      int

So, basically, both return an int. Integer.TYPE just returns the primitive type of the Integer class. It is true for any wrapper class