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What is Object-Oriented Programming (OOP) in Java? – A Complete Guide with Examples

Learn Object-Oriented Programming (OOP) in Java with real-world examples, best practices, FAQs, and expert tips. Ideal for both beginners and pros.

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Final Class, Final Method, Final Variable – OOP Implications in Java

Understand the role of `final` keyword in Java OOP—learn how final classes, methods, and variables impact design, inheritance, and flexibility

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Polymorphism in Java – Unlocking Loose Coupling and Scalable Software Design

Learn how polymorphism drives loose coupling and scalable software architecture in Java. Includes real-world use cases, examples, UML, and best practices.

Scalable Design Java Interfaces Design Patterns Java 21 Features Java OOP Abstraction SOLID Principles Loose Coupling Inheritance Polymorphism Extensibility

Method Overloading vs Overriding in Java – Differences, Examples, and Common Pitfalls

Master the differences between method overloading and overriding in Java. Learn syntax, use cases, pitfalls, and design tips with code and real-world examples.

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Upcasting and Downcasting in Java – Understanding Type Casting in Inheritance with Diagrams

Master upcasting and downcasting in Java OOP with clear examples, class diagrams, use cases, and pitfalls. Learn how and when to use type casting in inheritance

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Liskov Substitution Principle in Java – Common Misuses and Clean Fixes

Learn the Liskov Substitution Principle in Java with real-world examples, common pitfalls, and practical refactorings to write clean, robust OOP code.

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Open-Closed Principle in Java OOP – Write Flexible & Extensible Code

Understand the Open-Closed Principle in Java OOP. Learn how to build flexible, extensible software by writing code that is open for extension, closed for modification

Refactoring Java OOP SOLID Principles Open Closed Principle Abstraction Inheritance Clean Code Design Principles Extensibility Modular Design

OOP Pitfalls in Java – Anti-patterns You Should Avoid

Avoid common OOP pitfalls in Java by learning key anti-patterns, their impact, and how to refactor them for clean, modular design

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Using Abstract Classes in Java – When and Why You Should Choose Them

Understand Java abstract classes with real-world examples. Learn when to use them, how they differ from interfaces, and their role in OOP design.

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Tutorials under 'Inheritance'