In essence, while the factory method design pattern creates instances of several derived classes, the abstract factory design pattern is used to create instances of several families of classes.

The Factory design pattern is a simplified form of the Builder pattern. In essence, you would want to use the Builder design pattern when you need to create a complex object in a step by step manner.

Abstract Factory Design Pattern for Dependency Injection. The classical GoF Abstract Factory design pattern is modified inthe following two ways: A factory interface replaces the abstract factory ...

The Factory Design pattern is used when we have a superclass with multiple subclasses and, ... For example, we could create some concrete classes that implement the Shape interface.