Object Oriented Programming is not just about knowing what a class is. It is about designing systems that are maintainable, scalable, and follow best practices. Most developers learn OOP syntax but never master OOP architecture. This course takes you from basics to advanced concepts with Java examples, covering OOP fundamentals, SOLID principles, GoF Design Patterns, Clean Code Design, and a final exam task where you implement the backend for an online store.

This Course Offers

• Complete OOP fundamentals to advanced concepts: Learn object oriented programming from basics to advanced with Java examples. Master classes, objects, inheritance, polymorphism, encapsulation, and abstraction in depth.
• SOLID Principles mastery: Learn the five SOLID principles (Single Responsibility, Open Closed, Liskov Substitution, Interface Segregation, Dependency Inversion) with practical Java examples. These principles separate junior code from professional architecture.
• GoF Design Patterns and Clean Code Design: Learn Gang of Four Design Patterns and Clean Code Design principles for object oriented programming. Understand how to apply patterns to real world problems.
• Real world project: backend for online store: Implement a backend system for an online store as the final exam task. Work with domain specific terminology including accounts, transactions, users, carts, menus, and services. This is not abstract theory. It is practical application.

Why We Love This Course

1. It is incredibly comprehensive at 24.5 hours with 93 lectures and 206,000 students enrolled. This course has been tested across a massive audience of developers.
2. It includes coding exercises and open source code. You have practical tasks that use domain specific terminology, not abstract concepts. You can copy and paste code to run on your local computer.
3. The instructor is a top rated IT consultant. Andrii Piatakha is a consultant in a top rated IT outsourcing company. More than 19 thousand people across the world have endorsed his skills.
4. It includes a free AI bot for students. You get exclusive, free, no sign up access to an AI bot to help you deeply learn the material and gain a real advantage in interviews and real world work.
5. One student review noted it was fantastic and very good for beginners who want to learn backend in Java with OOP principles. Another noted the instructor is a really dedicated teacher.

OOP is not just a programming paradigm. It is a way of thinking about software design. Most developers know syntax but fail at architecture. The question is whether you want to master OOP from basics through SOLID principles and Design Patterns with real world projects, or keep writing procedural code in object oriented languages.

• Beginner Software Engineers who want to learn OOP the right way.
• Middle Software Engineers who want to learn more about OOP architecture and SOLID principles.
• Developers with shallow knowledge in OOP programming who need to deepen their understanding.
• Anyone who knows syntax but struggles with designing maintainable, scalable object oriented systems.

• Knowing any programming language basics is required.
• Understanding Java syntax is required.

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