Object-oriented Basics, Principles and Patterns

In writing...

A place to bookmark Object-oriented basics, principles and patterns. Kind of like an index.

Object-oriented Basics

• Abstraction
• Encapsulation
• Polymorphism
• Inheritance

Object-oriented Principles

• Encapsulate what varies
• Favour composition over inheritance
• Program to interfaces, not to implementations

Object-oriented Patterns

• Strategy - defines a family of algorithms (duck quacks, different Zelda items), encapsulates each one (into individual classes), and makes them interchangeable (compose them with another class - add the interface as an instance variable that can be swapped out).