Cast from Object to Integer

Problem:

I need to cast from Object to Int.

Solution:

If you're sure that this object is an Integer :

int i = (Integer) object;

Or, starting from Java 7, you can equivalently write:

int i = (int) object;

Beware, it can throw a ClassCastException if your object isn't an Integer and aNullPointerException if your object is null.