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.
Learn what UML (Unified Modeling Language) is, its benefits, and types of diagrams like Use Case, Class, Sequence & Activity. Understand how UML helps design object-oriented systems clearly.
Learn what a Use Case Diagram is in UML. Understand its purpose, components like actors, use cases, system boundaries, include/extend relationships, and see real-world examples like online shopping.
Understand cohesion, coupling, and delegation in OOP with real-world examples, Java code, design principles, and interview prep. Learn how to build high-quality, maintainable, and loosely coupled object-oriented systems.
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.