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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.
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Learn what ER models are in DBMS, why they matter, and how they help design databases. Understand entities, attributes, relationships, and ER diagrams with examples.- Published on
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.- Published on
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.- Published on
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.