This chapter covers the simple factory pattern.
Create an object without exposing the instantiation logic to the client.
In object-oriented programming, a factory is a special kind of object that can create other objects. A factory can be invoked in many ways, but most often, it uses a method that can return objects with varying prototypes. Any subroutine that can help create these new objects is considered a factory. The ultimate purpose of using a factory method is to abstract the object creational mechanism (or process) from the consumers of the application. ...