Web Reference: Oct 10, 2025 · Inheritance is a mechanism by which a class (called subclass) can inherit data and methods from another class (called superclass). An interface defines a contract (a set of methods/signatures) without (necessarily) giving full implementation. You will learn that all classes are derived from the Object class, and how to modify the methods that a subclass inherits from superclasses. This section also covers interface-like abstract classes. In this video, we dive deep into the four core OOP principles: 🔹 Inheritance – Learn how classes can reuse code and extend functionality. 🔹 Polymorphism – Understand how Java allows ...
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