30 Free Online Java Courses with Certificate of Completion

The need to learn to program has never been more than needed, in these 30 free online java courses with certificate of completion, you’ll get your hand in lots of training from beginners to intermediate to advanced.

In fact, COVID-19 made lots of companies, I’m talking about more than 80% of companies in the world, have plans to automate their work processes. You don’t do things like this without a programmer, a full stack developer course is one of the best places to start.

And as these companies are automating their businesses, there is also a rise in cyber threats and crime, free ethical hacking courses can help you protect these companies from online criminals. Taking a Java course or improving on it can boost your career pursuit.

If you learn it well, you’ll name your bills and they will be paid with a “thank you” message. Online computer courses are also another skill to grab to become so competent in the world of programming.

What is JAVA?

Java is a programming language that is object-oriented, class-based, cross-platform, and general-purpose. As some might think, “is Java an acronym?” No, Java is not an acronym.

In 1995, James Gosling created Java with the aim of interactive television. But it was a lot advanced for that purpose at that time, later, it progressed to be used for web programming language.

In these free online java courses with certificate of completion, you’ll be learning a lot about Java if you want. So let’s see the major difference between Java and JavaScript.

What is the difference between JAVA and JavaScript?

Both Java and JavaScript are STAPLES (Strategic Technology Assisted Professional Learning) in the programming world. Sometimes these two programming languages can be confusing, some people might even think Java is a short way to write JavaScript (I used to do that).

Actually, JS is the short form of JavaScript. Here are some differences between them.

  • According to Java.com, JavaScript does not create applets or stand-alone applications like Java. 
  • Java is an OOP programming language while JavaScript is an OOP scripting language.
  • Java’s program can run on both virtual machines and browsers while JavaScript’s program runs on, only browsers.
  • Java’s code has to be compiled but JavaScript’s code must be in readable text.

In these free online java courses with certificate of completion, you’ll be seeing the application of these two STAPLES.

Benefits of learning JAVA

Career Change

What is more important than that? You need to make money by learning this tough language. Yes, Java or any form of programming is not easy, that’s why an average Java programmer in the U.S. is netting more than $95,000.

You can join this category, all you’ve to do is diligently take these free online java courses with certificate of completion. If you’re yet to start, the beginner’s course will be best, if you’ve gathered some skills and want to improve, go straight ahead to the Intermediate.

You can go for the advanced course if you want to specialize in some areas. You can even go and get yourself a paid course, or hire a personal instructor, it all depends on how you learn. But we provided all the best free courses you can find on the internet.

All-round Popular

Java is the most Programming language used in the entire world. In fact, Oracle said that 3 billion devices run on Java.

Other Programming Languages

By learning one of these free online java courses with certificate of completion you’ll be exposed to other Programming Languages like C, and C++.

Easy Solution

Java has been there for 27 years, so any problem you’ll encounter, has been encountered by so many other people and the solution is just right there on the web.

Requirements to take free java courses online

There is no special degree to participate in these free online java courses with certificate of completion, all you need is.

  • You should know how to use a computer
  • You should have a computer for the lesson
  • If you’re new, start with the beginner’s course.
  • Good internet access
  • A nice study environment

Free Online Java Courses with Certificate of Completion

Here is the list of the free online java courses with certificate of completion

  • Java Programming and Software Engineering Fundamentals Specialization
  • Object-Oriented Programming in Java Specialization
  • Java Programming – Great Learning
  • Free Java Online Course – EDUCBA
  • Free Online Java Programming for Beginners Course | Alison
  • Java Tutorial for Complete Beginners (Udemy)
  • Java Multithreading
  • Java Programming Fundamentals
  • Introduction to Java Programming: Starting to code in Java
  • Java Programming Basics | Udacity
  • Object-Oriented Java Programming: Data Structures and Beyond Specialization
  • Core Java Specialization
  • Algorithms, Part I
  • Object-Oriented Programming in Java
  • JavaScript Testing
  • Website Performance Optimization
  • Programming for the Web with JavaScript
  • Full Stack Application Development Project
  • CS50’s Web Programming with Python and JavaScript
  • Object-Oriented Programming in Java
  • Computer Architecture
  • IBM AI Enterprise Workflow Specialization
  • Command Line Interface (CLI) With Golang From Infosys
  • Cybersecurity Capstone
  • Quantum Machine Learning
  • Computer Forensics
  • Gradle for Android and Java
  • JavaScript Promises
  • Browser Rendering Optimization
  • ES6 – JavaScript Improved

Free Online Java Courses with Certificate of Completion For Beginners

1. Java Programming and Software Engineering Fundamentals Specialization

This is one of the free online java courses with certificate of completion offered by Duke University through Coursera. It is a beginner-level course that runs for 5 months, and more than 251,000 students have already enrolled.

It will be introducing you to java and will be helping you with important programming understanding and you will start writing programs that can be used to solve problems. You’ll also have the basic skills a software engineer uses to solve complex world problems, whether it is to design algorithms or debugging programs.

The course has 5 modules that start by teaching you Programming Foundations with JavaScript, HTML, and CSS. Then progress to Java Programming: Solving Problems with Software.

In the final module, you’ll learn “Java Programming: Build a Recommendation System.” Finally, you’ll take an assessment that gives you access to the certificate which will require some funds to get.

After the course, you’ll have skills in Html, JavaScript, Cascading Style Sheets (CCS), Java Programming, Html5, Cryptography, Algorithms, and many more.

Apply Now!

2. Object-Oriented Programming in Java Specialization

This is another free online java courses with certificate of completion offered by Duke University through Coursera, in which over 78,500 students have enrolled. It’s also a beginner course and runs for 5 months.

This course is not like the first course that doesn’t require any coding experience, this course requires you to have little programming experience. At least one programming language such as Python, C, or JavaScript.

This course goes deeper to help you learn how to solve more tough problems through objected-oriented design with Java. Further, you’ll also acquire firm knowledge of 2 Java Development environments; Bluej and Eclipse.

This is one of the free online java courses with certificate of completion that has 4 great modules. Your instructors are professors and lecturers in Computer Science and Computer Engineering.

So you’ll be learning from those that don’t only teach programming, they also practice and use it.

Apply Now!

3. Java Programming – Great Learning

This is a beginner programming course created by Great Learning and it runs for 2 hours and has an assessment to test your knowledge from the course. More than 262,000 students have already enrolled in it and more are to come.

The course will start by teaching you some Java language basics and installing the software you’ll use during the course. This is one of the free online java courses with certificate of completion that we explain a deeper meaning of Java.

In addition, you’ll learn your first Java Program, some variables and data types in Java, operators in Java, etc. You’ll be awarded a certificate after completion of the course.

Apply Now!

4. Free Java Online Course – EDUCBA

This is one of the free online java courses with certificate of completion that take more than 4 hours to complete. It was created by EDUCBA and you’ll have lifetime access upon registration.

You’ll be learning Java Programming from scratch, that is, you don’t need any basic knowledge of any programming language to participate in this course. You’ll be learning from the recent JDK (Java Development Kit) 8, you’ll learn how to install it, use it, and how use JRE (Java Runtime Environment).

There are 5 modules in this course that focuses on object-oriented and functional programming basics. This course also gives you access to a verifiable certificate that you can publish online maybe on LinkedIn.

Apply Now!

5. Free Online Java Programming for Beginners Course | Alison

This is one of the free online java courses with certificate of completion that will teach you the most basic of Java Programming. It was published by ClayDesk E-Learning through Alison, and it runs for 3 to 4 hours.

Approximately 36,000 students have already applied to the course. The course goes deeper to elaborate on major Java concepts and simple programming skills.

Java behaves like C++ Programming Language but is simpler to use, therefore you shouldn’t be overwhelmed with the course. It will take you a step at a time, till you learn how to format strings in Java.

The course first starts by introducing you to Java and its concepts, then it will teach you to write basic Java Programs. You’ll also learn Arrays in Java and some important Java functions.

In the final module, you’ll undertake some projects, then take your final assessment which gives you access to your certificate. You need an 80% pass mark to qualify for the certificate. However, the certificate is not free.

Apply Now!

6. Java Tutorial for Complete Beginners (Udemy)

This is one of the free online java courses with certificate of completion that approximately 1.7 million students have enrolled in. It runs for 16 hours 7 mins, that is, 1 month of class (4 hours per week).

It was published by John Purcell, a software development trainer. The course has 9 sections with 74 lectures that can teach you all you need to know about Java.

You’ll learn what Java is and how it works, how to program core Java, like the “Hello World,” program. You’ll also learn the Java collection framework and a lot of classes.

However, there won’t be any certification of completion in this free class, nor will there be an instructor Q&A section, nor can you send a message to the instructor. They are all available in other paid courses from John Purcell.

But it is a 16-hour long class you can’t just ignore.

Apply Now!

7. Java Multithreading

This is another free course that was created by John Purcell. And it runs for approximately 3hrs, and more than 259,000 students have applied to.

It will be teaching you how to effectively write multi-threading code in Java, and how to identify problems in multi-threading and solve them. This course requires you to have basic knowledge of Java programming.

In addition, this is one of the free online java courses with certificate of completion that has 2 sections and 16 lectures.

Apply Now!

8. Java Programming Fundamentals

This is one of the free online java courses with certificate of completion that is offered by Universidad Galileo through edx. It teaches you how to start your career as a programmer and solve programming problems with the help of functions, and recursive algorithms.

The course runs for 8-10 hours which is estimated around 5 weeks.

Apply Now!

9. Introduction to Java Programming: Starting to code in Java

This is another beginner’s course created through edx by Universidad Carlos III de Madrid. Over 352,000 students have already enrolled in it and it takes up to 5 weeks to complete.

You can offer it at your own speed, you can choose to take it slowly as you take care of other things in your life. Or you can complete it within a few days, it all depends on you.

This course will introduce you to some of the important concepts in programming. Such as Functional Abstraction, the Object-Oriented Programming, Paradigm, and APIs (Application Programming Interfaces).

Your instructors are professors, assistant professors, lecturers, and researchers in the university. So you have a lot of instructors waiting to invest their Java Knowledge in you.

Apply Now!

10. Java Programming Basics | Udacity

Understanding Java Syntax is the major first move any good programming instructor will teach you, and that is what this course will start with. It is one of the free online java courses with certificate of completion that will teach you how our computers make their decisions.

Not only that, you’ll see how Java documents information through variables and data types. Further, you’ll learn to use Interllij, a Java IDE (Integrated Development Environment) used by professional programmers to build, compile and debug code.

You need to learn these basic concepts before you must progress to become a professional programmer. The course takes approximately 6 weeks to complete and can be taken at your own speed.

Apply Now!

We have taken our time to list fully free online java courses with certificate of completion for Beginners. Which, when learned properly you’ll never be confused about the basics of Java Programming. 

In fact, you’ll even have some ideas for programming in its entirety.

Now, we want to list some intermediate free online java courses with certificate of completion that you can apply to advance your skill and knowledge.

Free Online Java Courses with Certificate of Completion For Intermediate

11. Object Oriented Java Programming: Data Structures and Beyond Specialization

This course moves beyond basics to cover topics in software development. You will learn more advanced object-oriented programming principles, which will enable you to fully take advantage of Java.

This is one of the free online java courses with certificate of completion offered by the University of California San Diego and more than 63,000 students have enrolled in it.

It’s a course that you can take at your own pace and from anywhere in the world. It runs for 7 full months, which is best taken 5 hours per week.

Apply Now!

12. Core Java Specialization 

You’ll be going deeper to learn how to use object-oriented programming to build classes and create objects. This is one of the free online java courses with certificate of completion that explains how solutions are packaged in Java.

Further, you’ll learn how to implement inheritance and polymorphism in Java. And after the course, you’ll gain Computer Programming, Java Programming, Web Development, Crt0, Javac, and Iterator skills. And many more skills.

The course is offered by Learn Quest through Coursera, and more than 11,000 students have applied to it. You can complete it within 5 months, 4 hours per week would be best.

Apply Now!

13. Algorithms, Part I

This is one of the free online java courses with certificate of completion that’s offered by one of the best universities in the world, Princeton University through Coursera. Over 934,000 students have already applied for it, and it runs for an amazing 54 hours.

Due to the effectiveness of the course, 22% of the students that completed the course were able to start a new career, and 25% got a tangible career benefit. You can also improve yours by diligently completing the course.

The course has 59 videos with lots of readable resources. After the course, your Data Structure, Algorithms, and Java Programming skills will improve tremendously.

Apply Now!

14. Object-Oriented Programming in Java

This course is created by Udacity, which will be teaching you some of the strongest programming concepts in Java, such as; Object, Inheritance, and Collections. You’ll learn how these concepts are used in applications that require user input, and you’ll start to appreciate the importance of mastering these concepts in Java.

This course will make sure you create your own game before it ends, and you’ll also need your basic Java knowledge in this course. You need to understand Java Syntax, Variables, Data Types, Functions, and Loops, for you to completely take advantage of this course. 

If you have not yet gone through them, our free online java courses with certificate of completion for beginners we listed prior to these Intermediate courses will be a good place to start.

The course runs for 4 weeks.

Apply Now!

15. JavaScript Testing

This course will confidently teach you how to write a JavaScript application using the red-green-refractor workflow. This is one of the free online java courses with certificate of completion that will first start by showing you how other companies use different tests and the value these tests provide.

When you’re done observing other companies’ tests you’ll be taught how to write your own professional test using the Jasmine testing framework. The course is a simple 2-week course, that was created by Udacity.

Apply Now!

16. Website Performance Optimization

This course is provided by one of the big techs in the world, Google, through Udacity. It is a course that will teach you how to make any website responsibly fast, whether for a mobile user or a desktop user.

You’ll also learn how to convert JavaScript, HTML, and CSS to a usable website. You’ll also be introduced to Chrome Developer Tools, and how you can measure how mobile and desktop websites are performing.

The short course runs for just 1 week, but it will be impactful for you if you want to improve website performance.

Apply Now!

17. Programming for the Web with JavaScript

This is one of the free online java courses with certificate of completion that will teach you how to develop special web apps with the help of JavaScript. It will also teach you the basics of how data is exchanged on the World Wide Web (WWW), and the tools you can use to create an admirable web application.

Over 121,000 students have already enrolled in the course and it takes 4 weeks to complete. It is offered by the University of Pennsylvania through edx.

Apply Now!

18. Full Stack Application Development Project

This is one of the free online java courses with certificate of completion that was created by another Tech Giant, IBM. You’ll need knowledge of frontend and back end web development to fully understand this course.

Most importantly, when you complete this course, IBM will give you a skill badge that showcases the knowledge and skill you’ve acquired in this course. The course runs for 2 weeks, and you can finish it at your own speed.

Apply Now!

19. CS50’s Web Programming with Python and JavaScript

This course went deeper into how to design and implement web apps using Python, JavaScript, and SQL using some frameworks such as; Django and React. This is one of the free online Java courses with certificate of completion that will help you improve and grab JavaScript, HTML, CSS, Python, Django, and other skills.

It was created by another best University in the World, Harvard University, through edx. Further, it has been taken by more than 1 million students and runs for 12 weeks

Apply Now!

20. Object-Oriented Programming in Java

This is another course created by Duke University through Coursera. Over 251,000 students have participated in it, and it runs for 39 hours.

This course will enable you to create a more advanced Java program than you’ve ever created before. You’ll learn how to take advantage of existing libraries, and how to build GUI (Graphic User Interface).

You’ll also be carrying out some projects in this course, in fact, this course has lots of projects to be carried out, and the first week also starts with one.

Apply Now!

I believe with the free Java courses for beginners that were listed first and these free java courses for intermediate, you’re ready to enter the professional world. So we’ll now list the final free online java courses with certificate of completion for advanced students.

One of the major things you’ll be noticing in these advanced free online java courses with certificate of completion is that they are specializing in a particular field, just like a master’s program.

Free Online Java Courses For Advanced Students

21. Computer Architecture

This is another course provided by Princeton University, through Coursera. Over 183,000 students have enrolled in it, and it takes a long 50 hours to complete.

The course starts by introducing you to Instruction Set Architecture and Microcode, then it progresses to teach you cache review and a lot on superscalar.

Apply Now!

22. IBM AI Enterprise Workflow Specialization (Advanced)

Of course, you should know that this course is offered by IBM, from the name.  It’s a specialization course that has other 5 courses with it. 

It’s totally an online course and can be completed within 4 months. It’s a self-paced course, that is, you can choose to complete it in less or more than this 4 months. This is also an opportunity for you to check our post on the IBM data science professional certificate if you are interested in kickstarting a career in data science.

Apply Now!

23. Command Line Interface (CLI) With Golang From Infosys (Advanced)

This course is specially offered by the Coursera project network. This is one of the free online java courses with certificate of completion that is a project course.

That is, it is more practical than theoretical, you’ll be learning how to verify Golang Installation on a windows machine. Also, you’ll learn to write a Golang script to connect to a machine in the cloud and many other things.

This short professional course runs for 1 hour.

Apply Now!

24. Cybersecurity Capstone (Advanced)

This advanced Java course is offered by Rochester Institute of Technology, through edx and it runs for 8 weeks (10-12 hours per week). This is not a self-paced course where you can decide when to start and finish, your instructor will decide that for you.

So get ready for a more organized class where the instructor decides on a lot of things. On the contrary, this is not bad at all, because your instructors which are professors and senior lecturers in computing security will help you to be more serious and appropriately finish the course.

Apply Now!

25. Quantum Machine Learning

This is one of the free online java courses with certificate of completion that is organized by the University of Toronto through edx. You’ll be introduced to lots of quantum machine learning algorithms.

Further, you’ll be able to access expectations for quantum devices on various time scales, and more. The course is estimated to finish within 8 weeks and it’s a self-paced course which you can start and finish whenever you want.

Apply Now!

26. Computer Forensics

With your basic and Intermediate knowledge of Java Programming, you can dive into this special professional course to learn digital forensics. This course will teach you ways to perform professional digital forensics investigations to acquire data that relates to cybercrime.

It’s another course that was created by Rochester Institute of Technology through edx. It runs for 8 weeks and its pace is determined by your instructor, Yin Pan, a computing security professor at RIT.

Apply Now!

27. Gradle for Android and Java

This is one of the free online java courses with certificate of completion offered by Google through Udacity. Actually, it is the second course that is offered by Google that we’re adding to this list.

The course is all about teaching you how to build a more reliable app with the use of automation. You’ll first start by learning a lot about Gradle and it progresses to teach you advanced android topics.

You’ll be learning a lot about Android programming in this course. And, it runs for 6 weeks and it’s self-paced.

Apply Now!

28. JavaScript Promises 

This is the third course we have added to this list that is produced by Google through Udacity. Asynchronous work will be taught to you in an easy way that you can understand.

You’ll be using Native JavaScript Promises to write Asynchronous code which can be easily read. The advanced course is estimated to end within 3 weeks, and there are some interactive quizzes to take too in the course.

Apply Now!

29. Browser Rendering Optimization

This is one of the free online java courses with a certificate of completion that will teach you to build 60 FPS (Frames Per Second) Web Apps. This course is also created by Google (Google again?) through Udacity.

In this course, you’ll learn how to make an app that performs a lot better. Paul Lewis will help you to create an app that is as fast as 60 Frames Per Second.

You’ll also be given some tools to identify the major causes of Jank. The course runs for 1 month and can be concluded at your own speed.

Apply Now!

30. ES6 – JavaScript Improved

This course will be teaching you a lot of recent updates to the JavaScript language, some new keywords, arrow functions, class syntax, and a lot more. You’ll also learn new ways to define variables, neater and more detailed functions with the help of arrow functions.

The course runs for 4 weeks and is at your own pace.

Apply Now!

Free Online Java Courses with Certificate of Completion – FAQs

Where can I learn Java for free?

We have listed 30 free online java courses with certificate of completion that you can start learning ASAP.

What can I build with the knowledge of JAVA?

  • Firstly, Some of these courses will help you create mobile apps, which is a good way to start.
  • Secondly, you can also build cloud applications
  • Thirdly, web applications, and many more

Is Java certification hard?

It depends, at the introductory stage, it is easy to learn. But, as time goes on it becomes tougher (that doesn’t mean it’s not possible to move from a beginner to an intermediate and then a professional).

As a popular saying goes, “if he/she can do it, I can do it.”

How long does it take to get Java certified?

It depends on your pace and the course you’re offering. Some courses take as short as a few hours while others take as long as 6 months. 

How much does a Java certification cost?

There are certificates as low as $20 and some as high as $100.

How do I become Java certified?

When you’ve completed the course and passed the required test, you’ll be given access to the certificate.

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Content Creator at Study Abroad Nations | See My Other Articles

Daniel is a content creator with over 2 years of experience researching and creating content to help students who want to study abroad and those looking to take an online course for personal improvement, skill acquisition or a degree. Dan joined SAN in 2021 as a research-based content creator.

He loves meeting new people and developing new relationships.

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