Custom Class Creation.
Custom Class Exercise Complete.
Public, Private.
Public, Private con't.
Update.
Properties.
Setup PracticeOne.
PracticeOne complete.
Static Methods.
Static Methods done.
Inheritance.
Inheritance Complete.
Overriding Base Methods.
PracticeTwo.
PracticeTwo finished.
Factory Method.
Factory Method complete.
Factory to static method.
singletonTest will not work with ARC.
privatemethod will not work with ARC.