Master inheritance and composition in object-oriented programming. Learn when to use 'is-a' vs 'has-a' relationships, method overriding, the super keyword, mixins, and why you should favor composition over inheritance 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.