Creational Patterns

We use the "new" keyword whenever we want to create a new object and creational patterns solve problems related to the creation of objects.

They are:

Singleton - Ensures that only a single instance of a given object can exist at a context
Factory - Factory Method Pattern defines an interface for creating an object, but let the subclasses decide which class to instantiate.
Abstract Factory - It provides an Interface for creating families of related or dependent objects without specifying their concrete classes
Builder - Separate the construction of a complex object from its representation so that the same construction process can create different representations.
Prototype - Allow to create new instance from existing one.