There is no doubt that 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. object-oriented programming 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 well. OOP Many programmers just think that OOP is nothing more than , , , and , without truly understanding these concepts and mastering them. Abstraction Inheritance Encapsulation Polymorphism 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, e.g. using and . SOLID design principles 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 and . books 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 Object-Oriented Programming Courses for Programmers and Software 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 and or not, you will learn a thing or two by joining these courses. Java OOP 1. Master Object-Oriented Design in Java It’s easy to learn Java, but its 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, e.g. the four pillars — , , etc. But, few of them seem to go into detail about how to apply them to the real world. abstraction encapsulation What problem does abstraction solve? Why is it important? Or, how do you develop the skill to see things at a different level of abstraction, etc? What happens if you don’t use the right level of abstraction? This attempts to bridge that gap by explaining all the important tools and concepts of object-oriented programming that a professional Java developer should know. course You will start with OOP basics like any , but slowly, you will learn to design and develop software using the best practices in object-oriented programming. other Java course 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, , , , , etc. Factory Strategy Observer Builder The course also covers advanced concepts, e.g. and , and shows you how to use them as real projects. dependency injection UML 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. Absolute Introduction to Object-Oriented Programming in Java This is another from the author of the previous course. This course is actually more of a beginner level, and it’s better if you take this before joining the previous course — if you don’t have any previous background on . course 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 and . inheritance polymorphism Overall, this is a great course for beginners who want to understand object-oriented programming. 3. Java — Object-Oriented Programming [For Absolute Beginners] This is another 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. course In the first part, you will learn about OOP basics, like classes and objects, constructors, , and methods, like , , and . overloadings overriding data abstraction encapsulation 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. 4. 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 example. In this , 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, , , , and . course inheritance polymorphism composition 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, , , etc. overloading static members 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. 5. Learn Object-Oriented Programming With Java in 250 Steps This is an excellent and up-to-date for learning object-oriented programming in Java. course This course teaches you object-oriented programming using — it uses the latest and greatest tools, e.g. JShell, , and others. You will learn about the basics of programming, like loops, conditionals, functions, etc. Java 9 Eclipse IDE The course also explains the basics of object-oriented programming, including the abstract class, interface, constructors, overriding, overloading along . 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. 6. Grokking the Object-Oriented Design Interview Most of us learn object-oriented design for interviews and then apply that knowledge into the real world. The object-oriented design has always been a critical part of the software engineering interview process. Most of the engineers struggle with the (OODI), partly because of their lack of experience in laying down the design of a complex system, and partly because of the unstructured nature of OODI object-oriented design interviews This course is designed by the hiring managers of , Facebook, , and . It not only has a set of carefully handpicked case studies like Parking lot Problem which have been repeatedly asked at the top tech companies but also provides a thorough experience to handle different object-oriented design scenarios. Google Microsoft Amazon I highly recommend this course if you want to improve your object-oriented analysis and design skill 7. Grokking the System Design Interview This is another course from and which can help you a lot in your design skills. Most engineers struggle with the system design interview (SDI), partly because of their lack of experience in developing large-scale systems and partly because of the unstructured nature of SDIs. The Educative Team Fahim ul Haq This course will help you to solve not only those dreaded System Design Problems but also give you experience, tools, and techniques you would need to apply that knowledge in solving your own real-world problems. Apart from these 7, here are 3 more Object Oriented programing courses which are worth looking: 1. Object Oriented Programming in Java Specialization [Coursera] 2. Object Oriented Java Programming: Data Structures and Beyond Specialization [Coursera] . 3 JavaScript: The Advanced Concepts [ZTM Academy] Depending upon whether you love Java or JavaScript, you can choose these courses to learn Object-Oriented Programming in your favorite programing language. That’s all for now about some of the . These courses are great for anyone starting with both Java and object-oriented programming for the first time. best courses to learn object-oriented programming and design in Java 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 Java and OOP Resources 5 Free Spring Framework Courses for Java Developers Top 5 Courses to Learn Spring Boot My favorite free courses to learn Java 10 Courses to Learn Python 5 Free Data Structure and Algorithms Courses 5 Free Linux Courses for Programmers and Developers 5 Free Courses to Learn React JS Framework My favorite courses to learn Data Structure Top 5 Courses to learn Web Development Thanks for reading this article. If you find these OOP courses useful, then please share it 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 should take a look at my list of . FREE Object-Oriented Programming Courses

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10 Best Object-Oriented Online Programming and Design Courses 2020 [Updated]

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