Introduction to OOP
Object-Oriented Programming (OOP) is a paradigm that structures programs around objects, rather than actions and data. It helps manage complexity by modeling real-world entities.
Core OOP Concepts
- Class: A blueprint or template for creating objects. It defines the properties (attributes) and behaviors (methods) that all objects of that type will have.
- Object (Instance): A specific entity created from a class. If 'Dog' is the class, 'Fido' is an object.
- Encapsulation: Bundling data (attributes) and the methods that operate on that data into a single unit (the object), hiding internal details.
- Inheritance: A mechanism for one class to inherit attributes and methods from another (parent) class, promoting code reuse.
- Polymorphism: The ability of different objects to respond to the same method call in their own way.
Why Use OOP?
- Modularity: Objects are self-contained units, making development easier.
- Reusability: Inheritance allows code defined once to be used by many subclasses.
- Maintainability: Changes in one area are less likely to affect others.