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The Factory Pattern

The Factory Method Pattern defines an interface for creating an object, but lets subclasses decide which class to…

The Decorator Pattern

Decorator pattern attaches additional responsibilities to an object dynamically. Decorator pattern provides a flexible…

The Observer Pattern

The Observer Pattern — defines a one-to-many relationship between objects so that one object changes state, all of its…

The Strategy Pattern

Strategy — defines a family of algorithms, encapsulate each one, and makes them interchangeable. Strategy lets the…

Your Design Toolbox

Do you know that knowing the Object Oriented basics does not make you a good Object Oriented designer.