Learn the key differences between Association, Aggregation, and Composition in OOP. Understand real-world relationships with Java examples, diagrams, analogies, and interview tips to master object relationships in class design.
Understand Object-Oriented Analysis and Design (OOAD) with simple steps, real-world analogies, and examples. Learn how to model systems using UML and OO principles for better software design.
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 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 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.