Java Classes and Objects: Foundations of Object-Oriented Programming

Object-oriented programming is the backbone of Java, and everything you build relies on understanding how classes and objects work. Without a solid grasp of these foundational blueprints, writing clean, maintainable, and efficient code is nearly impossible. This written course guides you from the absolute basics of Java classes to advanced structural design. You will read clear explanations, analyze practical code snippets, and discover how to translate real-world concepts into structured Java code. By the end of this course, you will confidently structure applications using proper encapsulation, inheritance, and modern Java features. What you'll learn: - Understand the fundamental relationship between classes, objects, and constructors in Java - Apply encapsulation principles to protect data and control access using modifiers - Design robust class hierarchies using inheritance and polymorphism - Implement nested and inner classes to organize your code logically - Leverage modern Java Records to create clean, immutable data-carrying classes with minimal boilerplate - Explore sealed classes to control class hierarchies and improve application design The course begins with core definitions and the anatomy of a basic class before moving into inheritance, nested structures, and modern object-oriented enhancements. You will progress through logical written modules designed to reinforce your conceptual understanding and code-reading skills. This course is designed for beginners who are new to Java or looking to solidify their understanding of object-oriented programming. No prior object-oriented design experience is required. Start reading today to master the core building blocks of Java development.