This solution, we're going to inspect the store class and see if we can throw some exceptions, the
constructor doesn't receive any parameters, so nothing to check here.
There is nothing a quality control in the center, because if the user happens to pass a null, it would
already throw a null pointer exception.
And that's really it.
I can't really think of a scenario where we would need to throw an illegal argument, exception or even
an illegal state exception so we can just leave the class the way it is.
And I'll see you in part eight.