When is a static nested class (and static members therein) loaded into memory?

Question

Here, I was trying to implement a singleton class for my Database connectivity using the inner static helper class :

package com.myapp.modellayer;

public class         


        

Answer 1

The oracle doc page says:

Note: A static nested class interacts with the instance members of its outer class (and other classes) just like any other top-level class. In effect, a static nested class is behaviorally a top-level class that has been nested in another top-level class for packaging convenience.

You it is loaded the same way other classes are loaded.