Design Patterns

Structural - Facade Pattern Example Provide a unified interface to a set of interfaces in a subsystem. Façade defines a higher-level interface that makes the subsystem easier to use. Creation - Factory Method Define an interface for creating an object, but let subclasses decide which class to instantiate. Creation Singleton Pattern - lazy and early initiation Ensure a class has only one instance and provide a global point of access to it. Contravarience What Is Mutable ane Immutable in C#