Oop-pillars

Learn Abstraction in OOP and Java with real-world examples, abstract classes vs interfaces, detailed code, analogy, and interview insights. Understand how abstraction hides implementation and focuses on essential behavior.

Learn everything about Encapsulation in OOP — from definition and types to real-world analogies, examples, and interview questions. Deep dive with code, comparison tables, and advanced insights.

Explore Inheritance in OOP with real-world examples, types, Java code, key differences, and interview-ready insights. Learn how inheritance promotes reusability, extensibility, and clean architecture in software design.

Understand polymorphism in Java and OOP with real-world examples, method overloading vs overriding, types (compile-time & runtime), interview questions, and complete code. Learn how one method behaves differently in various contexts.

Learn all types of inheritance in Java and OOP with code, real-world examples, comparisons, and interview tips. Explore Single, Multilevel, Hierarchical, Multiple (via interfaces), and Hybrid inheritance in depth.