10 Best Places to Learn Java Online for Free in 2023
My favorite websites to learn Java online for free, suitable for beginners and people who want to learn to code in Java online.
Hello guys, if you want to learn Java Programming in 2023 and looking for the best websites to learn Java coding for free then you have come to the right place. In the past, I have shared the best Java courses and Java books, and today, I am going to share free websites to learn Java Programming for free.
Being the author of a Java blog and programmer I often receive questions like how to improve my coding skills?, how do I learn to code in Java?, or I am having difficulty solving programming problems, please help, etc.
This is mostly from programmers who have just started programming or a graduate with a programming degree or even some programmers with a year or two in Job.
Like many other things in the world, to improve coding, you need to code, code, and code — and to develop programming, you need to write a program, and that’s where many of these programmers fail.
In 90% of cases, they simply don’t write enough programs to develop programming logic and code sense and, if without too much experience at data structures and algorithms, if they attempt problems given on sites like LeetCode, HackerEarth, TopCoder, or Project Euler, they fail miserably. To be frank, it’s not easy to solve problems from those sites, until you have really done programming for a year or two, or even more. An excellent way to improve coding is to solve basic data structures, algorithms, and object-oriented design problems by yourself. If you are absolutely new in the programming world, then investing some money in buying a book or joining a course on data structure and algorithms like Data Structures and Algorithms: Deep Dive Using Java on Udemy is a Good Idea. It may not teach you coding, it will give knowledge of data structure and algorithms, which is very important for any programmer.
10 Best Websites to Learn Java Coding for FREE in 2023
In this article, I am going to share with you the top 10 websites, which will help you to learn coding and programming, and that too for FREE. A few sites are mostly for Java programmers, but the problem set can be solved in any language, while the other site is language independent because it doesn’t ask you to code online, instead it only check your answers with random input data.
1. Udemy
This is another popular website to learn Java and coding online. Similar to Pluralsight, it also provides both free and paid courses, but the good part is that you have a lot of choices available, and it’s relatively cheaper than Pluralsight. It also contains a lot of free courses in both Java and programming, like Java Tutorial for Complete Beginners, a whopping 767,854 students are enrolled for this course, and it’s one of the best free Java courses available online. And, if you can spend a few bucks like $10 then you can also find a lot of courses to learn Java from scratch The Complete Java Masterclass is one of the best courses for programmers getting started with Java.
2. Coursera
Coursera is another popular online learning platform where you can find a lot of free online resources to learn anything. Coursera brings the best learning material from top companies like Google and IBM as well as from the world’s top universities like Stamford University or Harvard.
When it comes to learning Java, Coursera has many free courses, here are a few of them which you can join to learn Java online.
- Java Programming: Solving Problems with Software by Duke University
- Object Oriented Java Programming: Data Structures and Beyond Specialization by UC SanDiago
- Spring Framework Specialization by LearnQuest
You can join these two free Java and Spring courses on Coursera to not only learn Java but also Spring Framework, one of the most popular and in-demand Java frameworks for developing web applications.
And, if you find Coursera courses useful, which they are because they are created by reputed companies like Google, IBM, Amazon, and the best universities around the world, I suggest you join the Coursera Plus, a subscription plan from Coursera which gives you unlimited access to their most popular courses, specialization, professional certificate, and guided projects.
3. Educative
This is another awesome website for beginners and people who prefer interactive learning. Educative allows you to code online on a browser, which means you don’t need to install any software or do any kind of setup.
This is really important because most of the beginners stuck during the setup process and give up. With Educative’s text-based, interactive courses, quizzes, and assessments you can master any tech skills, including Java.
The Learn Java from scratch is a free, interactive course to learn Java. You’ll start with a simple hello world program and proceed to cover common concepts such as Conditional Statements, Loop Statements, Math, and Logic in Java, before moving on to more advanced concepts like Inheritance, Generics, and ArrayList, along with much more
Here is the link to join this course — Learn Java from scratch
They have the best courses for coding interviews like Grokking the System Design interview and Grokking the Coding interview pattern which is not free but you can access them using an Educative subscription which costs around $14.9 and provide access to all of their 250+ interactive courses. they do have some free programming courses well including one to learn Java.
4. Pluralsight
There are a lot of useful courses on Pluralsight to learn Java and coding online. You can choose the classes you like to learn at your own pace. The site also provides a 10-day free trial, which is more than enough to get a start with both Java and Coding if you are totally focused. I recommend Java Fundamentals: The Java Language to start learning the basics of Java programming language. Author Jim Wilson has done a great job in explaining the syntax and features of Java in this power-packed course. Apart from that Pluralsight, also has courses to teach programming, for example, you can check out Learning To Program — Part 1: Getting Started By Scott Allen, if you absolutely don’t have any idea about programming.
5. Karpado
This is another awesome website to learn Java programming in 2023. Run by Karthikeya T, a popular Java instructor, this course has many useful Java courses for both beginners and experienced Java developers.
One of their premium course is The Complete Java Programming Masterclass for 2023! which not only teaches you Java programming from scratch but also helps you in preparing for Oracle’s Java certification.
If you are a beginner and want to learn Java programming in 2023 then this is the only Java course you will need to start your career for Javarevisited readers, I have secured a 95% discount and you can get this $99 course for just $3 for a limited time.
It also comes with 30-days money-back guarantee which means you have nothing to lose and this premium course is almost free.
Here is the link to join this course — The Complete Java Programming Masterclass for 2023!
6. CodeAbbey
The first coding site which I am going to share with you guys was CodeAbbey when I came across CodeAbbey, I really like their question set, because it was perfectly designed for beginners. I later found that this is one of the best website to practice coding in Java and learn programming and coding skill. It’s neither easy nor trivial and provides some decent practice to the first-timer. Here is the kind of question you can expect from this site :
- Maximum of array
- Vowel Count
- The weighted sum of digits
- Body Mass Index
- Sum of digits
- Median of Three
- Neumann’s Random Generator
- Array Checksum
- Modulo and time difference
- Average of an array
- Array Counters
- Binary Search
- Dice Rolling
Once you start solving these Coding problems, your programming logic will improve, and you will learn how to apply the knowledge of operators, data structure, and algorithms to solve a problem.
Slowly you will learn how to approach any problem. Once you solve the beginner’s problem, you can start with intermediate and some difficult ones to test your knowledge and gain some confidence. Remember, it’s the problem-solving skill that makes you a good programmer, not just knowing all the syntax of any programming language, like C or C++. Once you learn how to code or how to program, you can solve the same problem in any programming language. If you like books, you can also purchase a book to learn how to program, like Head First Programming, which teaches you how to code and write a program using Python language.
7. Java Tutorial for Beginners [YouTube]
This is a great YouTube video lesson on Java by Mose Hamdeni from CodeWithMosh. In this 2.30 hour long free course you will learn enough Java to be called a Java beginner. This is actually one of the best online platform for Java developers.
Here are things you will learn in this course:
- How to install Java
- Anatomy of Java Program
- How to write your first Java program
- Java code execution
- data types, variables, operators
- class, method, and object-oriented programming
- Array, Loops, and FizzBuzz
It’s a nice intro course for anyone who is new to both programming and Java. You can watch this course and follow along to learn Java online by yourself, and if you like Most’s teaching style and want to master Java then you can further see his complete Java mastery bundle.
8. CodingBat
The other site I am going to share with you guys is CodingBat. This site is also an excellent resource to practice and learn to code for Java and Python programmers. This is actually the best website to practice Java coding and solve programs to learn coding as well. You can solve problems in either Java or Python. Just like CodeAbbey, you need to register, but that’s good because you can track your progress. It also contains beginner-level programming problems from useful topics like String, Array, Logic, and Recursion. I really like their questions from recursion, as it’s one of the confusing concepts to master. They also have problems at different difficulty levels.
Once you log in, you can select any question, and you will be asked to write code for that method in Java or python, Every program has a precise specification, often you need to implement a particular method.
Once you were done, you can run your program and test with different inputs, including boundary conditions, which are designed by CodingBat itself.
Their input set is perfect, and you will learn quickly by following why your program doesn’t run on a particular input. Here are some of the questions you can expect at CodingBat :
monkeyTrouble
You have two monkeys, a and b, and the parameters aSmile and bSmile indicate if each is smiling. We are in trouble if they are both smiling or if neither of them is smiling. Return true if we are in trouble.
monkeyTrouble(true, true) ? true
monkeyTrouble(false, false) ? true
monkeyTrouble(true, false) ? false
bunnyEars
We have many bunnies, and each bunny has two big floppy ears. We want to compute the total number of ears across all the bunnies recursively (without loops or multiplication).
bunnyEars(0) ? 0
bunnyEars(1) ? 2
bunnyEars(2) ? 4
CodingBat also contains help and videos on both Java and Python lessons.
I am sure once you start solving programming problems on these two websites, you will learn coding faster. If you already know how to code, then these will simply improve your thinking and programming skills. The great thing about these two websites is that their problems are not very difficult, which is one reason I am recommending these to beginners and intermediate Java programmers. Sometimes a site with difficult programming problems discourages a young programmer. Once you start solving easy questions, your confidence will grow up, and you gradually advance towards more challenging topics and questions.
9. Test Automation U
This is another great website to learn Java Coding online for FREE. As the name suggests this website is for automation testers but it also has a useful track to learn Java which is not only engaging but also rewarding. I come across this website on Twitter because I follow Angie Jones, creator of this website and the first and probably the youngest woman to become a Java champion recently. If you are learning Java for test automation or not this website will surely help you to get up to speed with Java. If you find the Java Programming track advanced then you can first start with an online course like The Complete Java Masterclass or take the learn Java track on CodeCademy to build the basic concepts.
10. JetBrains Academy
This is another great place to learn Java for FREE. I recently found this website on Facebook and fell in love with it immediately. The name of JetBrains is one of the most popular and trustworthy names in the Java world as they are the one who creates IntelliJIDEA and Android Studio. JetBrains Academy, in partnership with Hyperskill, offers interactive project-based learning combined with powerful development tools like IntelliJIDEA. This means you can execute code not just in the browser but also in your IDE, which is the tool you will use in most of your career for real-world Java development. Their Java developer track is massive and has 29 projects covering 358 topics and over 137 hours of content. You build projects like Coffee Machine, Tic-Tac-Toe, SimpleChattBot, and much more. They are not completely free but you can still learn a lot of things using their trial. Btw, JetBrains Academy also has a Python track that you can use if you want to learn Python online. It has more than 34 hours of content and a couple of projects which can you build along to learn Python better.
11. CodeCademy [Learn Java Course] [FREE]
This is another popular website to learn Java programming in 2023. I first come to know while learning JavaScript, now also has a free course on Java. It’s one of the best interactive sites to learn Java and very good for beginners who often struggled to set up their own development environment. It provides an online IDE or Java Editor where you can not only code but also check your program by running and debugging it. The course is not exhaustive as those available on Pluralsight and Udemy, but given it’s free, it a still one of the better resources to learn Java. Join 2,360,524people who have already taken this course
Here is the link to join this free Java course — Learn Java
11. CodeGym (learn Java by building Games)
This is another great place to learn for FREE particularly If you like to learn Java by building games and doing interactive programming exercises. I recently found this website when one of my reader pointed it and I was amazed with the learning material.
The best thing about learning Java at CodeGym is that they give you a lot of practice and they also follow 80/20 rule where you will be reading or learning 20% of your time and 80% of time practicing what you learned.
This method works because in real life you will be using top 20% of your skill 80% of time, this true with Java as well, while Java API is very vast with hundreds of classes and third-party libraries, you will be using only 20% of Java most of the time like core Java, Collections and Multithreading.
In other words, CodeGym is like an online course but with 1200 tasks and many games which clearly makes it as one of the best places to learn Java coding.
You can learn more about it here — CodeGym
They have both free and paid options while their free option is good enough to learn Java online, if you can afford, you should definitely try Codegym premium, their paid version, they are also offering 50% discount now.
They also have a free Java practice program where you can practice Java tasks for free to learn Java better and level up your Java skills. It contains curated set of tasks and articles to test and improve your Java knowledge and its absolutely free.
By the way, these sites are not for experienced programmers, as you can quickly solve all those questions, but if you like to do a quick recap and practice, then you will find them interesting as well. If you are looking to buy a book to learn to code, then I suggest you take a look at Head First Java 2nd Edition, a little bit old but still one of the best books to learn Java.
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Thanks for reading this article so far. If you know any excellent online resources to learn Java, especially for beginners, which you think complements these two websites, then feel free to share. Everybody loves free resources and happy learning programming. P. S. — If you don’t mind spending a few bucks for learning a valuable and in-demand skill like Java then I highly recommend you to check out The Complete Java Masterclass course by Tim Buchalaka and his team on Udemy. It’s one of the most comprehensive and up-to-date courses to learn Java online.
