What are the key concepts of Object-Oriented Programming (OOP) in Java?

Question

Accepted Answer

OOP in Java focuses on objects, classes, inheritance, encapsulation, and polymorphism to enhance code reusability and organization.

Classes and Objects: A class is a blueprint for creating objects. Example: class Dog { String breed; }
Inheritance: Allows a new class to inherit properties and methods from an existing class. Example: class Puppy extends Dog { }
Encapsulation: Bundles data and methods that operate on the data within one unit, restricting access to some components. Example: private variables.
Polymorphism: Enables methods to do different things based on the object it is acting upon. Example: method overriding.
Abstraction: Hides complex implementation details and shows only the essential features. Example: abstract classes and interfaces.

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