Design Patterns Another useful site: http://www.dofactory.com/Pa... · Creational - the way classes instantiate o Singleton 18 § Ensure a class has one instance · Hide “New” Constuctor · Add Shared solitary instance of self o Abstract Factory 21 § Create families of related or dependent objects without specifying classes · Daddy, Mommy, Baby Bear (interfaces) o Builder n/a § Separate the construction of a complex object from its representation so that the same construction process...