Decorator is one of the Structural Design Patterns. You’re about to start with gift wrapping for a birthday party. A delicate, fragile gift has to be bubble-wrapped. It is followed by placing it safely in a cardboard box....
Builder is one of the Creational Design Patterns, which help you deal with how objects are created. You should pay close attention to your object creation techniques that may morph into serious design problems if you neglect them....
Design patterns are blueprint solutions that you use to solve common programming problems swiftly and elegantly. Everything began in 1994, when four computer scientists Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides, published an iconic book “Design Patterns: Elements of Reusable Object-Oriented Software”....