Java Abstraction Explained: Abstract Classes & Methods

What is Abstraction in Java?
In this detailed tutorial, we break down the third pillar of OOP! We use the ATM and Car analogies to explain why we hide complexity and how to use the abstract keyword in your code. Perfect for engineering students preparing for exams and beginners building their Java foundation.

What you will learn:
✅ Definition of Abstraction (What vs. How)
✅ Real-life Analogies (ATM & Car)
✅ Abstract Class vs. Regular Class
✅ Rules of Abstract Methods
✅ Why we cannot create objects of Abstract Classes
✅ Shape Hierarchy Code Example
✅ Exam & Viva Tips

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