Object-Oriented Programming in Java and Design Patterns

Object-oriented programming is the cornerstone of modern software development, but moving from basic syntax to well-structured object designs can feel challenging. This comprehensive written course helps you understand how objects, classes, and design patterns work together in practical Java development. You will gain a solid foundation in software design, progressing from fundamental concepts to writing modular, scalable Java code. Through clear text explanations, structured code snippets, and practical exercises, you will learn to structure programs effectively and solve recurring architectural challenges. What you'll learn: • Understand foundational OOP concepts including classes, objects, fields, and methods • Apply core principles of encapsulation, inheritance, polymorphism, and abstraction • Utilize modern Java features such as records and sealed classes for clean data modeling • Implement essential design patterns including Factory, Singleton, Strategy, and Observer • Refactor unstructured code into modular, maintainable class structures • Write flexible Java programs that adapt to changing requirements. The course starts with key terminology, basic object structures, and fundamental syntax before introducing architectural principles and real-world design patterns. Designed specifically for beginners and Java learners, this text-based guide requires no prior OOP experience. Start reading today to write cleaner, more professional Java code.