What Are Classes, Objects, and Methods in Java? (Explained Simply)

Short summary

Classes are blueprints; objects are concrete instances with real data; methods are actions they perform. Java fundamentals explained through a User class example showing how these concepts form the foundation of backend applications and proper code organization.

• •A class is a template that defines structure and behavior; an object is an actual instance with its own data
• •Multiple objects from the same class are independent—changes to one don't affect the others
• •Methods encapsulate business logic and actions, keeping code organized and reusable across layers like Spring Boot controllers and repositories

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