Enhancing Your Java Skills: Top 7 Courses for Object-Oriented Design Patterns
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Learning design patterns is crucial for every programmer aiming to write clean, efficient code and improve their software development skills.
Recently, I shared a list of the best books for mastering design patterns in Java. Today, I will focus on online courses that offer a solid foundation in design patterns, particularly for those starting from scratch. If you're curious about what design patterns are and why they are essential for Java developers, here's a quick summary.
Design patterns are established solutions to common programming challenges. For example, creational patterns address issues related to object creation. Though these concepts have been around for years, they gained significant attention through the influential book "Design Patterns: Elements of Reusable Object-Oriented Software" by Erich Gamma, John Vlissides, Ralph Johnson, and Richard Helm, published in 1994. This seminal work introduced 24 design patterns that are applicable across various programming languages, including Java, C#, and even languages not strictly based on object orientation, like JavaScript.
The value of design patterns is timeless, as they are embedded in numerous frameworks, libraries, and even the programming languages themselves. You may be utilizing them daily without even realizing it. For instance, several GOF patterns are present in the Java Development Kit (JDK), such as the Decorator pattern in IO classes and the Strategy pattern in the Comparable and Comparator interfaces.
Understanding OOP design principles and GOF patterns is vital for Java developers, as it enhances code quality and is often a focus in technical interviews where candidates are assessed on their knowledge of design patterns.
Top 7 Courses to Learn OOP Design Patterns in Java
I have previously shared various programming resources, including free books and courses on languages like Java and Python, and tools such as Git and Jenkins. If you're new to this space, you can easily find these resources through a quick search on Google.
Today, I'm excited to present some of the top online courses for learning design patterns from the ground up. While these courses are not free, they are often available at promotional prices, sometimes as low as $10.99 during Udemy flash sales.
Having purchased over 50 courses on topics like Node.js, Spring, and Android from Udemy, I can attest that these courses not only explain how different design patterns operate but also how to apply them effectively in real-world scenarios.
For instance, one course uses the Strategy pattern to illustrate a payment processing system, which I found particularly insightful. Additionally, many of these courses cover foundational OOP principles, which are essential for understanding design patterns, including SOLID principles such as Single Responsibility, Open-Closed, and Liskov Substitution.
1. Design Patterns in Java
This course is among the best for learning Java design patterns. It covers both GOF patterns like Command, Decorator, Adapter, and Strategy, as well as SOLID principles that underpin these patterns. It features hands-on demonstrations where the instructor implements patterns live using IntelliJ IDEA. Most examples are provided in single-file format, allowing you to download and run them in your preferred IDE.
Join this course here: Design Patterns in Java
2. Design Patterns by Kenny Wong on Coursera
This outstanding course on Coursera, offered by the University of Alberta and led by expert trainer Kenny Wong, explores how to enhance object-oriented analysis and design using design patterns. The course is part of the Software Design and Architecture Specialization and covers established design patterns, their applications, and how to identify design flaws through a catalog of code smells.
A highlight is the Capstone Project, where you'll redesign a Java-based Android application to incorporate various design patterns.
Join this course here: Design Patterns by Kenny Wong
You can also opt for Coursera Plus, which offers unlimited access to a vast collection of popular courses, specializations, and professional certificates.
3. Software Design Patterns: Best Practices for Software Developers
This interactive coding course on Educative teaches software design patterns, covering all three types: creational, structural, and behavioral. You can experiment with code directly in your browser, making this course ideal for mastering GOF patterns.
Join this course here: Software Design Patterns: Best Practices for Software Developers
Consider an Educative Subscription for access to over 210 courses at an affordable monthly rate.
4. Experience Design Patterns in Java
This course provides insights into more than 20 design patterns from the classic Gang of Four book. Each pattern is accompanied by clear examples that illustrate the problems they solve, along with their pros and cons. You'll gain practical knowledge to identify issues in your code and apply the appropriate design patterns for maintainable and readable solutions.
Join this course here: Experience Design Patterns in Java
5. Basics of Software Architecture & Design Patterns in Java
This course serves as a guide to creating efficient, reusable software by applying SOLID principles and design patterns. It is structured in two parts: the first focusing on SOLID principles, and the second on identifying problems and selecting the right design patterns.
Join this course here: Basics of Software Architecture & Design Patterns in Java
6. Java Design Patterns — The Complete Masterclass
In this recent course by Paulo Dichone, you'll learn about GOF design patterns, complete with real-world examples to help you understand their applications, such as using the Strategy pattern for payment processing. This course is ideal for both novice and experienced Java developers.
Join this course here: Java Design Patterns — The Complete Masterclass
7. From 0 to 1: Design Patterns — 24 That Matter — In Java
This comprehensive course covers 24 object-oriented design patterns and includes instruction on OOP principles. The knowledgeable instructors have significant industry experience, making complex concepts more accessible.
Join this course here: From 0 to 1: Design Patterns — 24 That Matter — In Java
8. Grokking the Object-Oriented Design Interview
Although this course doesn't focus solely on design patterns, understanding object-oriented design is crucial for mastering them. Designed by hiring managers from top tech companies, this course prepares you for interviews by providing case studies and practical experience in object-oriented design.
Join this course here: Grokking the Object-Oriented Design Interview
These courses offer a fantastic opportunity to enhance your understanding of object-oriented design and the essential GOF patterns. After completing them, you'll be well-equipped to use these patterns effectively, improving your coding skills and facilitating better communication with your peers.
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Thank you for reading! If you found these Java Design Patterns courses helpful, please share them with your friends and colleagues. For any questions or feedback, feel free to reach out.
P.S. If you're eager to enhance your design pattern skills but prefer a free option, consider the Java Design Patterns and Architecture course on Udemy, which is completely free with a Udemy account.
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P.P.S. Quick Update: Pluralsight's Free Weekend 2023 offers access to over 7,000 courses. Don't miss this chance to learn a new skill or enhance your existing knowledge.
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