Flyweight Pattern
"""The flyweight software design pattern refers to an object that minimizes memory usage by sharing some of its data with other similar objects.Flyweight is a structural design pattern that lets…
Visitor Pattern
When you have File class with all print(), email() with inherited classes to WordFile, PictireFile, PreadSheet, .... Your new requirement are adding compress method on each classes. This is simple…
Facade Pattern
Facade pattern hides the complexities of the system and provides an interface to the client using which the client can access the system. This type of design pattern comes under…