Tutorials under 'Class Hierarchy'

Practical, example-driven posts focused on Java, Spring Boot, backend design, and performance.

Inheritance in Java – Concepts, Syntax, Best Practices, and Real-World Use Cases

Learn inheritance in Java with syntax, real-world examples, best practices, and Java 17+ features like sealed classes. Ideal for Java beginners and pros.

Abstract Class Java 17 Features OOP Concepts Java Class Hierarchy Inheritance Vs Composition Method Overriding Extends Keyword Java Inheritance Super Keyword Java Sealed Class Java

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

Type Casting Java OOP Class Hierarchy Downcasting Inheritance Polymorphism Upcasting Casting Pitfalls Java Tutorials Instanceof