Скачать или смотреть Java Lesson 9 – Object-Oriented Programming (Classes & Objects Explained)

In Lesson 9 of the Java Beginner series, we introduce Object-Oriented Programming (OOP), the core paradigm behind Java. This lesson explains how to model real-world concepts using classes and objects, how data and behavior are grouped together, and why OOP is essential for building clean and scalable applications.

What you will learn:
• What Object-Oriented Programming is
• The difference between a class and an object
• How to create classes with fields
• How to create objects using new
• Accessing object data with the dot operator
• Adding behavior to objects using methods
• Creating and using multiple objects
• Common beginner mistakes when working with objects

This lesson lays the foundation for constructors, encapsulation, and professional Java class design in Lesson 10.