encapsulation

Master encapsulation in object-oriented programming. Learn how to protect object state, use access modifiers effectively, implement getters and setters with validation, create immutable objects, and avoid common encapsulation mistakes with practical examples in TypeScript, Python, and Java.

Master the four pillars of object-oriented programming: Encapsulation, Inheritance, Polymorphism, and Abstraction. Learn how these principles work together to create maintainable, scalable software with real-world examples in TypeScript, Python, and Java.