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There is no doubt that object-oriented programming is a pillar of software development and also one of the reasons for the huge success of Java. Strong knowledge of object-oriented programming helps you to create better software.
It also helps you to better communicate your ideas to your team and fellow programmers. Despite being such an important technology, it's difficult to find good programmers who understand OOP well.
Many programmers just think that OOP is nothing more than Abstraction, Inheritance, Encapsulation, and Polymorphism, without truly understanding these concepts and mastering them.
There is no doubt that they are the four pillars of Object-oriented programming, but OOP is much more than that. OOP is about thinking in terms of class and object, organizing your code by following the best practices, like using SOLID design principles and design patterns.
It eventually helps you to write better software, which is easier to change and support. That's why it's very important for programmers and software developers to understand OOP.
In the past, I have shared a couple of books and free courses to learn object-oriented programming. However, in regards to the general feedback, I received several suggestions about sharing more thorough and complete courses to learn both basic and advanced OOP concepts.
In this post, I will attempt to respond to that feedback and provide a more extensive, thorough list of courses at both the beginner and advanced levels.
In this article, I am going to share some of the best courses that can help you learn more about object-oriented programming and design from scratch. I have also included both beginner and advanced courses to cater to Java programmers of different experience levels.
10 Best Object-Oriented Programming Courses for Java Developers
Without any further ado, here is my list of some of the best object-oriented and design courses for Java programmers. The list includes courses for both beginners as well as Java programmers with a couple of years of experience.
No matter whether you know Java and OOP or not, you will learn a thing or two by joining these courses.
1. Master Object-Oriented Design in Java
It's easy to learn Java, but it's equally difficult to write production-quality object-oriented code --- that's where this course will help you.
Most of the object-oriented courses you find on the Internet will just explain the OOP basics, I mean the four pillars --- abstraction, encapsulation, etc. But, few of them seem to go into detail about how to apply them to the real world.
What problem does abstraction solve? Why is it important? What happens if you don't use the right level of abstraction? Or, how do you develop the skill to see things at a different levels of abstraction, etc?
This course attempts to bridge that gap by explaining all the important tools and concepts of object-oriented programming that a professional Java developer should know.
You will start with OOP basics like any other Java course, but slowly, you will learn to design and develop software using the best practices in object-oriented programming.
You will learn about SOLID principles and see examples using them to write better code. You will also learn about several object-oriented design patterns, like Template, Factory, Strategy, Observer, Builder, etc.
The course also covers advanced concepts, like dependency injection and UML, and shows you how to use them as real projects.
Overall, this is a good course for learning more about object-oriented programming and design, and I highly recommend this to both junior and intermediate Java developers with a couple of years of experience.
2. Grokking Modern System Design For Software Engineers And Managers
This is one of the newest System design course on Educative and this reflect all the hard work and experience they gained by created a couple of best System design courses you will find online.
As System design best practices have evolved the expertise required to design nd build these systems have evolved and that's where this course will help you. It share most modern and up-to-date System design best practices you will find online.
This course starts with teaching you first the fundamental building blocks. From there, you will learn u how to combine those building blocks to design and deploy scalable services through real-world examples. After completing this course, you will have the skills to build novel solutions to the most complex problems in modern software engineering.
Here are key things you will learn in this best System design course
- Learn 16 fundamental building blocks of modern system design (like Blob Store, Key Value Store, etc.)
- Learn and apply the RESHADED approach to system design
- Unpack (and be able to design) some of the world's most innovative scalable systems (including YouTube, WhatsApp, Uber, and Twitter)
- Apply that design mastery to create novel solutions for emerging problems by creating your own distributed systems
- Learn how to take on the system design interview and level up your career
The course will act as a great brief introduction to the amazing world of modern system design. It is perfect for beginners as you will learn about system design from absolute scratch. You will learn exactly what system design is and why is it used.
3. Object Oriented Analysis, Design & Programming with UML
This is another awesome course to learn object oriented programming, design and analysis as well UML, one of the popular tool for OOP design though it's better if you take this before joining the previous course --- if you don't have any previous background on OOP.
This course is slow-paced, simple, and perfect for beginners who want to understand classes and objects and how they help you write a more organized code.
You will learn about when an object is created and how it behaves with properties and methods when you run a Java program.
By the end of this course, you will understand the difference between a class and an object and important OOP techniques, such as inheritance and polymorphism.
Overall, this is a great course for beginners who want to understand object-oriented programming, analysis and design in depth.
4. Java --- Object Oriented Programming [For Absolute Beginners]
This is another course that focuses more on Java, but it covers object-oriented programming well. You can divide the course into two parts --- the first part is chapter 1, which is solely focused on OOP, and the second part, which focuses on different Java features, like Threads, IO, Streams, Java Garbage collection, and Exception handling.
In the first part, you will learn about OOP basics, like classes and objects, constructors, overloadings, and overriding methods, like data abstraction, encapsulation, and inheritance.
The good part is that it explains each concept with a demo that makes it easy to digest and remember. The course also focuses on static variables, which OOP doesn't recommend, and uses the abstract class and interface.
5. Mastering the System Design Interview by Frank Kane
This is my personal favorite and one of the best Udemy course to prepare for System design interviews. This course is prepared by none other than Frank Kane, one of my favorite Udemy instructor, and a Big Data and System Design expert.
He is also one of the ex hiring manager of Amazon so he knows what is expected from a candidate during System design interviews, which he has shared in this course.
In this course, you will learn everything about designing a system that scale, often known as Google's scale to handle millions and billions of users and transactions as well as Algorithms and Data Structures like Bloom Filter which plays a critical role in large scale system. The course will also teach you System design strategies which can be crucial even if you don't know the answer.
Apart from System design essential, This 5 hour long course will also give you insider tips for your system design interview from a former Amazon hiring manager as well as 6 mock interviews for practice!
6. Object-Oriented Programming in Java: From the Beginning
Most of the courses you will find with object-oriented programming in Java focuses more on Java and less on OOP, but this course is different.
It's true that an object-oriented programming course tends to focus on OOP and use Java for examples.
In this course, you will learn about the basics of object-oriented programming, like what is the difference between OOP and procedural language, like Java vs. C and things like abstraction, encapsulation, inheritance, polymorphism, composition, and aggregation.
You will also learn about the abstract class interface and how objects are created using OOP.
This course now focuses on how Java supports OOP, e.g. getters and setters, access modifiers, use of interface, composition, overloading, static members, etc.
At last, the course also introduces some of the design patterns in Java and explains how they help you write better OOP code in Java.
In short, this is a good, short course on learning object-oriented programming and design in Java. With that said, it is a good option for both software engineers and working Java professionals.
7. Software Architecture & Design of Modern Large Scale Systems
If you are an experienced developer who not only wants to crack System design interview but also learn about Software architecture to become a Software architect or solution architect
then this Udemy course is perfect for you. Created by Michael Pogrebinsky this Software architecture course will teach you how to design large and distributed systems in depth.
here are things you will learn in this course:
1. How to design large-scale systems
which can handle millions of requests/day
2. How to design for scalability and high availability.
3. Software
architectural patterns, building blocks and best practices
4. How to define the system's technical requirements, high-level components, and API
5. Software Architecture & Technology
of Large-Scale Systems
After going through this course, you will also gain confidence for your upcoming System Design Interview. I highly recommend this Software architecture course to experienced Java developers.
8. Learn Object-Oriented Programming With Java in 250 Steps
This is an excellent and up-to-date course for learning object-oriented programming in Java.
This course teaches you object-oriented programming using Java 9 --- it uses the latest and greatest tools, e.g. JShell, Eclipse IDE, and others. You will learn about the basics of programming, like loops, conditionals, functions, etc.
The course also explains the basics of object-oriented programming, including the abstract class, interface, constructors, overriding, and overloading along with four pillars of OOP.
The best part about this course is that it's very hands-on and you learn by doing, which is the best way to learn new technology.
Another great thing about this course is that it's FREE, but I am not sure how long it will remain free.
9. Learn Object-Oriented Programming in Java
Object-oriented programming is a fundamental programming style that you should have in your arsenal. It’ll challenge you to think about problems in different ways that will ultimately help you progress as a developer and grow in your career.
Becoming familiar with OOP principles will make your life easier for a few reasons:
It's easier to debug your code when you use objects and classes.
You’re able to use techniques like polymorphism, encapsulation, and inheritance.
You’ll be able to model complex real-world problems that are easier to write and understand.
What better place to start than the still very widely-used, original OOP language, Java? There’s plenty of life still left in Java, and it’s a very exciting time for Java developers with continuous advancements in the language.
That’s why I’m very excited to share with you this course, Learn Object-Oriented Programming in Java. This course takes a project-based approach to help you develop a firm understanding of OOP concepts.
Near the end of the course, you'll get to design a console-based application of a vending machine, this way you’ll have the opportunity to apply OOP principles to a real-world scenario.
Get started with OOP in Java , develop new ways to solve problems, and start using what you learn to grow in your professional career.
Here is the link to join this course - Learn Object-Oriented Programming in Java
For those who don't know Java, this course is also available in JavaScript, Python, C++, and C#, so you can choose the course with the choice of your programming language to learn Object Oriented Programming.
10. Software Architecture & Technology of Large-Scale Systems
This one is another Software architecture course on Udemy which is worth checking out. It's one of the most comprehensive System design courses with more than 25.5 hours of content while other course only provides content of 5 to 8 hours.
It also covers key system design topics like how to create Software Systems with High Performance, Scalability, Availability, Security using Modern Technologies
The course starts with a basic three-tier application architecture and then moves along with advanced and modern software architecture like Microservices and distributed systems. You will also learn how to cater Non-Functional Requirements like How to design architecture considering Performance, Scalability, Reliability, and Security.
You will also get exposure of highly scalable technology and tech stack like Nodejs, Redis, Cassandra, Kafka, Hadoop, Elastic Search etc. More importantly, you will learn how to use Docker and Kubernetes for large-scale production deployment, a key skill in this era of cloud computing.
That's all for now about some of the best courses to learn object-oriented programming and design in Java. These courses are great for anyone starting with both Java and object-oriented programming for the first time.
It will not only teach you OOP basics, but it will also show you how to design a program using OOP and the essential object-oriented design principles, such as coding for an interface and the SOLID principles for creating better Java applications.
Other Programming Resources You may like to explore
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Thanks for reading this article. If you find these OOP courses useful, then please share them with your friends and colleagues. If you have any questions or feedback, then please drop a note below!
P.S. - If you are looking for some FREE courses to start with Object-Oriented Programming, You can also take a look at my list of FREE Object-Oriented Programming Courses.
