Basics of Object-Oriented Programming (OOP)
Object-Oriented Programming (OOP) is a programming paradigm that uses objects to design
software. Objects represent real-world entities, and OOP focuses on reusing code through
encapsulation, inheritance, and polymorphism.
1. Class and Object
A Class is a blueprint for creating objects. An Object is an instance of a class. For example, a 'Car'
class can be used to create objects like 'Honda' or 'Toyota'.
2. Encapsulation
Encapsulation means bundling data and methods that operate on the data within one unit. It is
achieved using access modifiers like private, protected, and public.
3. Inheritance
Inheritance allows a class to acquire properties and methods of another class. This promotes code
reuse. Example: A 'Dog' class can inherit from an 'Animal' class.
4. Polymorphism
Polymorphism allows one interface to be used for different data types. It can be achieved using
method overloading and overriding.
5. Abstraction
Abstraction is the concept of hiding implementation details and showing only the essential features.
It is often implemented using abstract classes and interfaces.
Conclusion
OOP makes it easier to manage complex software by providing modularity, code reusability, and
scalability. Learning these concepts will help you build robust and maintainable applications.
