Master Java Design Patterns

Master the Design Patterns Every Java Developer Should Know ... with Hands-On Projects, Live Coding, and Real-World Examples

This course covers the most essential Java Design Patterns, based on the classic Gang of Four (GoF) book. These patterns are brought to life with modern Java and explained in a clear, practical, and easy-to-follow way.

You'll learn how to use Factory, Singleton, Builder, Adapter, Facade, Iterator, Strategy, Command and more, all while applying development techniques to improve your code quality.

We go beyond theory.

You’ll build real Java applications using each pattern so you understand how and when to use them in real-world development.

Just like my bestselling Spring Boot courses (over 900,000+ students, 82,000+ reviews, #1 on Udemy), I guide you step-by-step, explaining every line of code we write ... from scratch.

What You’ll Learn

• The 3 main types of design patterns: Creational, Structural, Behavioral

• Creational Patterns like Factory, Singleton, Builder, Prototype and Abstract Factory

• Structural Patterns like Adapter, Bridge Composite, Facade and Decorator

• Behavioral Patterns like Chain, Iterator, Observer and Strategy

• Real-world Java applications built using best practices

  
  

What You Get

• Over 9+ hours of HD video

• All source code and project files available for download

• PDFs of all lecture slides

• Closed captions in English

  
  

Hands-On Learning Experience

• You’ll type in every line of code with me ... no copy/paste programming

• Live coding in IntelliJ using modern Java. We use the IntelliJ free version.

• Full source code and project files included

• All lectures come with downloadable PDF notes for quick review

Course Outline

Section: Creational Design Patterns

Patterns that focus on object creation mechanisms.

1. Factory Method Pattern

2. Abstract Factory Pattern

3. Singleton Pattern

4. Builder Pattern

5. Prototype Pattern

Section: Structural Design Patterns

Patterns that focus on class and object composition.

1. Adapter Pattern

2. Bridge Pattern

3. Decorator Pattern

4. Composite Pattern

5. Facade Pattern

Section: Behavioral Design Patterns

Patterns that focus on communication and responsibilities between objects.

1. Chain of Responsibility Pattern

2. Iterator Pattern

3. Observer Pattern

4. Strategy Pattern

5. Template Method Pattern

6. Memento Pattern

7. State Pattern

8. Visitor Pattern

9. Command Pattern

10. Mediator Pattern

11. Interpreter Pattern

Student Praise from My Other Courses

• “Best structure and teaching method I've ever seen. You make every concept easy to understand.” – Dave Z.

• “The best Java instructor on Udemy. Bar none.” – Muzi P.

• “Real-world, industry-ready examples. Worth every penny.” – Premang

• “You are the gold standard for teaching software development.” – Julie H.

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Let’s master Java Design Patterns together and take your coding skills to the next level.

Tools & Technologies

• Java 25+ (works with Java 17+)

• IntelliJ IDEA (free version)

• Maven (for dependency management)

We are Responsive Instructors

• Got a question? We respond to all questions within 24 hours.

• You're never learning alone. We're here to help you every step of the way.
  

Who Is This Course For?

• Java developers of all levels who want to improve their design and architecture skills

• Anyone preparing for technical interviews (design questions are common!)

• Developers who want to build scalable, reusable, and clean Java applications

• Software engineers looking to apply industry-standard patterns in real projects