Hello guys, today, we'll talk about design patterns and some of the best online courses to learn design patterns in Java from scratch. If you are wondering what is a design pattern and why Java developers should learn them? then let me give you a brief overview. Design patterns are nothing but a tried and tested solutions of common programming problems, for example, the creational design patterns deal with the problems of object creation. They exist from a long time but made popular by famous Gang of four of Erich Gamma, John Vlissides, Ralph Johnson and Richard Helm in their classic 1994 book Design Patterns: Elements of Reusable Object-Oriented Software, also known as GOF design patterns. This book documented 24 design patterns which are reusable to solve common programming problems.
The original book was written using C++ and Smalltalk as examples, but since then, the design pattern has been adopted by almost every programming language like Java, C#, PHP and even programming language which is not strictly object-oriented like JavaScript.
The benefit of design patterns are immortal, you will find them in many frameworks, libraries, and in-built in the programming language.
You probably use them on a daily basis even if you don't realize they are there. For example, JDK uses several of GOF design patterns like Decorator is used in IO classes, Strategy is used along with Comparable and Comparator and so on.
The knowledge of OOP design principles and GOF design patterns are very important for Java developers because it enables them to write better code. It is also important from the interview perspective, where interviewer often judges experienced Java developers with their knowledge of design patterns.
Today, I'll share some of the best online courses to learn Design patterns from scratch. These courses are not free but not very expensive either. You can buy them in the Udemy's flash sale for just $10.99 and sometimes even lower with just $9.99. I have already bought over 50 courses on Node JS, Spring, Kotlin, DevOps, Big Data, Java 9, and Android on Udemy's last sale.
Most of these courses will not only explain to you how these design patterns work and what problem they solved but also how to use them in the real world. For example, I really like the example of using Strategy pattern for designing a Payment system on on Paulo Dichlone's Java Design Patterns Masterclass.
Some of the courses also explain basic OOP design principles which are the basic building block of design patterns like SOLID principles like Single Responsibility principle, Open-closed design principle, Liskov Substitution, Inversion of control and Dependency injection etc. Apart from these they also cover some of the less popular but still useful principles like Law of Demeter and Delegation principles.
The original book was written using C++ and Smalltalk as examples, but since then, the design pattern has been adopted by almost every programming language like Java, C#, PHP and even programming language which is not strictly object-oriented like JavaScript.
The benefit of design patterns are immortal, you will find them in many frameworks, libraries, and in-built in the programming language.
You probably use them on a daily basis even if you don't realize they are there. For example, JDK uses several of GOF design patterns like Decorator is used in IO classes, Strategy is used along with Comparable and Comparator and so on.
The knowledge of OOP design principles and GOF design patterns are very important for Java developers because it enables them to write better code. It is also important from the interview perspective, where interviewer often judges experienced Java developers with their knowledge of design patterns.
7 Best Courses to Learn OOP Design Patterns in Java in 2024
I have been sharing a lot of programming resources recently e.g. free books and courses on Java, Python, Git, Eclipse, and DevOps tools like Jenkins and Maven. If you are new here you can find them by doing a quick search using the Google's custom search box at the top-right corner of the page.
Today, I'll share some of the best online courses to learn Design patterns from scratch. These courses are not free but not very expensive either. You can buy them in the Udemy's flash sale for just $10.99 and sometimes even lower with just $9.99. I have already bought over 50 courses on Node JS, Spring, Kotlin, DevOps, Big Data, Java 9, and Android on Udemy's last sale.
Most of these courses will not only explain to you how these design patterns work and what problem they solved but also how to use them in the real world. For example, I really like the example of using Strategy pattern for designing a Payment system on on Paulo Dichlone's Java Design Patterns Masterclass.
Some of the courses also explain basic OOP design principles which are the basic building block of design patterns like SOLID principles like Single Responsibility principle, Open-closed design principle, Liskov Substitution, Inversion of control and Dependency injection etc. Apart from these they also cover some of the less popular but still useful principles like Law of Demeter and Delegation principles.
1. Design Patterns in Java [Udemy]
This is one of the best course to learn Design Pattern on Udemy and also my personal favorite. While similar to other courses it also covers object oriented design patterns but what separate this course from other courses is that it provides modern Java implementation of classic design pattern.Java has changed a lot since Java 8 because of Lambda, Stream, and changes made at the interface level like default and static methods in Java and that makes it easier to implement many design patterns in Java.
This is also one of the best course to learn design patterns in Java Programming language. It not only covers the GOF patterns like Command, Decorator, Adapter, Strategy, Proxy, Chain of Responsibility, Interpreter end but also covers the famous SOLID design principles which form the basis of design patterns.
As I said, it is also a very hands-on course where the author will show you how to implement a particular design pattern live on IntelliJ IDEA.
As I said, it is also a very hands-on course where the author will show you how to implement a particular design pattern live on IntelliJ IDEA.
Most demos are also a single-file, so you can also download the file attached to the lesson and run it in IntelliJ IDEA, Eclipse, NetBeans or another IDE of your choice.
Overall a complete course to learn all 24 GOF patterns and SOLID design principles for writing better code.
Here is the link to join this course - Design Patterns in Java
With 79,728 students already enrolled, this intermediate-level course requires no previous experience and offers a flexible schedule, allowing participants to learn at their own pace over approximately 15 hours. Included in Coursera Plus, the course provides valuable insights into the field.
Kenny Wong, author of this course, rated 4.6 by 196 learners, guides students through a comprehensive exploration of design patterns, extending object-oriented analysis and design to create interactive applications.
The curriculum covers established design patterns, providing a foundation for tackling complex software applications. Participants will learn to identify problematic software designs using a catalog of code smells.
The capstone project challenges students to redesign a Java-based Android application by implementing various design patterns and critiquing a given Java codebase for code smells.
The "Design Patterns" course is also a key component of the Software Design and Architecture Specialization from the University of Alberta and it is one of the best design pattern courses on Coursera.
By the end of the course, students will demonstrate proficiency in addressing user interface design issues, selecting appropriate design patterns for application design problems, applying design principles, critiquing and refactoring anti-patterns, and implementing the model-view-controller architectural pattern.
This course is highly recommended for those interested in software development and it also offers a shareable career certificate upon completion. If you want to learn design patterns and looking for a Coursera course then you should join this one.
By the way, If you are planning to join multiple Coursera courses or specializations, then consider taking a Coursera Plus subscription which provides you unlimited access to their most popular courses, specialization, professional certificate, and guided projects. It costs around $59/ per month but is worth it because you get access to more than 7000+ courses and projects, and you can also get unlimited certificates.
3. Basics of Software Architecture & Design Patterns in Java
This course is your guide to create smart, reusable software with SOLID principles and design patterns in Java.The course is divided into two parts, in the first part, the author talks about SOLID design principles e.g. Single Responsibility, Open-Closed, Liskov Substitution etc and how they help you to write better code.
In the second part, he talks about design patterns and how they solve the common problem. In order to use design patterns, you should be able to identify the problem and understand which pattern can help you and that's where this course excels.
In short, a good course to cover the basics of software design, architecture and design patterns in Java for writing better code.
4 .The Java Design Patterns Course by Tim Buchalaka on Udemy
This one is a rather new course from Tim Buchalaka, who has written a couple of best selling Java and Android courses like The Complete Java Masterclass which I have recently gone through to understand the Java 17 features.In this course, he tackles the topic of GOF design patterns and he has done a really good job of explaining how each pattern works and how you can use them in your code.
His examples are from the real world and very relevant which helps to grasp the concepts. For example, using the Strategy pattern to implement a Payment processing engine is a great idea because you need to process payment in different form like Cash, Credit Card, Coupons, Bitcoins or maybe something else.
In short, a great course for experienced Java developers and anyone who wants to learn about GOF design patterns like Visitor, Adapter, Decorator etc.
Here is the link to join this course - The Java Design Patterns
5. Java Design Patterns by Bharath Thippireddy on Udemy
This is another comprehensive course to learn Object-oriented design patterns from famous GOF book but the best thing about this course is that it not only coverers core Java pattern but also essential Java EE patterns.The instructor, Bharath Reddy is one of my favorite Udemy instructor when it comes to learning Java and related topics. Bharath is very knowledgeable and have working experience in Java development.
He explains the concept in clear way, giving real world example of when to use design pattern and when not to use. He explains both intent and structure of patterns and make sure you understand that design patterns are not inherently trivial at first glance, and make the effort to break things down in a way that is easily accessible.
Like first two courses, this one is also from Udemy and covers both object oriented design pattern and Java EE patterns like MVC, Data Access object (DAO), and others.
Like first two courses, this one is also from Udemy and covers both object oriented design pattern and Java EE patterns like MVC, Data Access object (DAO), and others.
Talking about social proof, more than 10,000 students have joined this course and it has on average 4.6 rating which is amazing. In short, a great course to start with Java design patterns to write better code.
Here is the link to join this course - Java Design Patterns
This course will teach you more than 20+ design patterns from the classic design pattern book by Gang of four, which is considered the holy bible on the subject. It's like a reference library for design pattern and you can always go back and revise the pattern you are not comfortable with.
For each pattern, a clear example is given to understand the problem the pattern will solve, as well as its advantages and disadvantages. You will be able to practically understand how the pattern works with the detailed included Java lessons.
After completing the course you should be able to identify common problems in your code, apply the correct design pattern, and implement a better object-oriented solution that is a lot more maintainable and readable.
6. Design Pattern Library [Pluralsight]
This is one of the best course to learn design pattern in Java on Pluralsight. It will teach you how to write better software by understanding common problems and applying design patterns for a better solution.This course will teach you more than 20+ design patterns from the classic design pattern book by Gang of four, which is considered the holy bible on the subject. It's like a reference library for design pattern and you can always go back and revise the pattern you are not comfortable with.
For each pattern, a clear example is given to understand the problem the pattern will solve, as well as its advantages and disadvantages. You will be able to practically understand how the pattern works with the detailed included Java lessons.
After completing the course you should be able to identify common problems in your code, apply the correct design pattern, and implement a better object-oriented solution that is a lot more maintainable and readable.
By the way, you would need a Pluralsight account to join this course which costs around $29 per month or $299 per year (14% discount). I highly recommend this subscription to all programmers as it provides instant access to more than 7000+ online courses to learn any tech skill. Alternatively, you can also use their 10-day-free-trial to watch this course for FREE.
7. Software Design Patterns: Best Practices for Software Developers [Educative]
If you are looking for a text-based interactive course to learn and practice design pattern then this Educative design pattern course is for you. Educative is a new online learning platform which focus on browse based learning and in the process makes learning easier and fun.
This course also cover same design patterns covered by other courses like behavioral, creational, and structural pattern but what separate this course from other is that its a text-based and interactive. This means you can implement the design pattern in the code given in browser and learn easy.
It also focuses on software code quality and how design pattern can improve it. If you have passion for clean code then you will love this course.
When it comes to joining this course, you can either join this course individually or you can take an Educative Unlimited subscription (recommended) to get access to their 300+ high quality, text-based, interactive courses to learn key skills for coding interviews, software development, and technology.
That's all about some of the best online training courses to learn Java Design patterns. These courses are a great way to boost your understanding of the object-oriented design and tried and tested GOF patterns. After completing these courses you know what those patterns mean and when can you use them to create better code. It will also help you to communicate your ideas to your team and fellow coders.
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Thanks for reading this article so far. If you like these best Java Design Patterns courses then please share with your friends and colleagues. If you have any questions or feedback then please drop a note.
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Thanks for reading this article so far. If you like these best Java Design Patterns courses then please share with your friends and colleagues. If you have any questions or feedback then please drop a note.
P. S. - If you are keen to learn Design patterns in Java to become a better developer but looking for a free online course to start with then you should join Java Design Patterns and Architecture course on Udemy. This course is completely free, more than 285,000 students have joined this 4.5-hour course to learn design pattern in Java.
4 comments :
would be great if you could explain all 24 patterns at one place.
Design Patterns in Java - by Dmitri is very good. Thanks for the recommendation.
Any interactive course to learn Design pattern in Java? Something where I can learn pros and cons of each pattern and learn how to use them and when to use them?
Can you share a project based design pattern course? I mean any course which shows the real world usage of design pattern in projects and explains how it improve code quality?
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