Top 14 Best Java Courses (Online)

David Brown (Senior Developer) Updated March 7, 2024
Top 14 Best Java Courses (Online)

Java courses for beginners

1. The Ultimate Java Mastery Series

Mosh Hamedani Online course by Mosh Hamedani certification icon Certification available

This course is designed to help people of all skill levels to learn Java from the basics to advanced concepts. It covers the fundamentals of programming, variables and types, control flow, debugging, classes and interfaces, object-oriented programming, exception handling, generics, collections framework, lambda expressions, functional interfaces, streams, multi-threading, asynchronous programming, and deployment. The course is bite-sized, memorable, and easy-to-digest with no fluff. It is suitable for complete beginners, college students, and existing Java developers.

2. Java Programming Masterclass covering Java 11 & Java 17

4.6/5 (704307 students) Read the reviews
Tim Buchalka Online course by Tim Buchalka certification icon Certification available

This course is for anyone who wants to learn Java programming, with no prior experience necessary. It is comprehensive (80 hours long), and covers everything from the basics to advanced concepts. The course is regularly updated with new content, and comes with a 30-day money-back guarantee.

3. Project Development Using JAVA for Beginners

4.5/5 (214481 students) Read the reviews
Hemanth kumar Online course by Hemanth kumar certification icon Certification available

This course is designed to teach people real world programming skills using the Java programming language. It is comprehensive and constantly updated, and covers each topic in detail with simplified examples. It is for anyone who wants to learn Java programming, and no previous experience is required.

4. Java Programming for Complete Beginners

4.5/5 (163079 students) Read the reviews
in28Minutes Official Online course by in28Minutes Official certification icon Certification available

This is a course for absolute beginners to Java and programming. The course is hands-on, with the learner writing 100+ programs. It covers all features of Java, from basic to advanced.

5. Practice Java by Building Projects

4.4/5 (116816 students) Read the reviews
Tim Short Online course by Tim Short certification icon Certification available

This course is designed for someone who wants to get better at understanding and applying Java design and object-oriented programming. The course covers topics such as client scenarios and requirements, approaching each problem analytically, writing our solution outline, implementing code step-by-step, and applying core principals of object-oriented design.

6. The Complete Java Certification Course

4.5/5 (73797 students) Read the reviews
Imtiaz Ahmad Online course by Imtiaz Ahmad certification icon Certification available

This course is designed for those looking to become a Core Java developer, with no prior Java experience necessary. The course covers topics such as Object Orientation, classes, methods, loops, exception handling, file processing, debugging, and more. There are also practical projects included to help students practice the concepts they are learning. The content is continually updated based on new technologies and student feedback.

7. Core Java Made Easy (Covers the latest Java 17)

4.5/5 (57444 students) Read the reviews
Bharath Thippireddy Online course by Bharath Thippireddy certification icon Certification available

This course is designed to help students learn the fundamental of java, as well as the more advanced features introduced in java 15. The course will cover topics such as object-oriented programming, the java language, the Eclipse IDE, and more.

8. Oracle Certification: Mastering Java for Beginners & Experts

3.4/5 (55572 students) Read the reviews
Frahaan Hussain Online course by Frahaan Hussain certification icon Certification available

This course is designed to teach students everything they need to know about programming in Java. The course is divided into sections, each of which covers a different topic. These topics include an introduction to Java, Oracle Java Certification, how to program in Java, the features of the Java programming language, coding semantics, website programming, and applet programming. The course also covers object-oriented programming, network programming, email programming, and multithreading programming.

9. Complete JAVA Bootcamp: Go from zero to hero with Spring

4.2/5 (48894 students) Read the reviews
Chandan Kumar Online course by Chandan Kumar certification icon Certification available

This course covers the basics of Java, configuring the Eclipse IDE, creating and running Java programs, data types, loops, conditional statements, arrays, objects, inheritance, exception handling, design patterns, and creating websites and web services.

Advanced Java courses

1. Advanced Java programming with JavaFx: Write an email client

4.7/5 (68775 students) Read the reviews
Alex Horea Online course by Alex Horea certification icon Certification available

This course is meant for people who want to learn how to write a complex JavaFX program. The course is project based, so the goal is to build a single program that uses JavaFX at an advanced level. The course covers topics such as FXML, views and controllers, communication between classes, model-view-controller pattern, skinning with JavaFX CSS, dynamically updating themes, multi-threading, custom JavaFX nodes, tables, web views, and running the program outside of an IDE. The course also covers advanced Java topics such as abstract classes, interfaces, inheritance, annotations, enums, generics, casting, delegation, recursion, lambda expressions, comparable interface, string buffers, while loops, selection models, and serialization.

2. Java SE 11 Developer 1Z0-819 OCP Course - Part 1

4.4/5 (19432 students) Read the reviews
Tim Buchalka Online course by Tim Buchalka certification icon Certification available

This course is designed to help you pass Oracle's 1Z0-819 exam for Java 11. You will learn about the topics covered on the exam and how to answer the questions. The course is split into two parts, with this course focusing on the "Core Java" concepts. Part 2 of the course will focus on the "Advanced" content.

3. Java Multithreading Become A Master

3.3/5 (9325 students) Read the reviews
Daniel McCarthy Online course by Daniel McCarthy certification icon Certification available

This course is all about multithreading in Java. You'll learn how to create threads, how to protect your programs from concurrency problems, and how to be efficient with thread pools.

Free Java tutorials

1. Free Java Tutorial for Complete Beginners

4.5/5 (1737367 students) Read the reviews
John Purcell Online course by John Purcell

This free tutorial will cover the basics of programming in Java, including data types, control flow, and object-oriented programming. By the end of the course, students will be able to write simple Java programs and understand the fundamentals of programming in Java.

2. Java for Noobs

4.5/5 (54083 students) Read the reviews
Pedro Mercado Online course by Pedro Mercado

This free online tutorial is designed to take you from knowing nothing about programming to being able to comfortably program in Java. The course is structured so that you will be walked through various topics in Jala, and given problems to test your knowledge at the end of various sections.

If you want to learn Java, there are a few different ways you can go about it.

You can sign up for a course at a local college or university, you can find a tutor to help you learn, or you can simply learn online.

Learning online has become a popular option for many people because it is often more convenient and less expensive than other methods.

Learning Java Online: A Student’s Guide

Why learn Java?

Java is a versatile and powerful programming language that is widely used in a variety of industries today. There are many reasons why you should learn Java, but here are just a few:

  1. Java is versatile and can be used for a wide range of applications.
  2. Java is powerful and can help you create sophisticated applications.
  3. Java is widely used, so learning it can give you a leg up in the job market.
  4. Java is easy to learn, so even if you’re new to programming, you can pick it up quickly.
  5. Java has a large and vibrant community, so you can get help and support when you need it.

Whether you’re looking to start your programming career or you’re an experienced programmer who wants to add another language to your toolbelt, Java is a great choice.

Java programming basics

Before you can write a Java program, you need to understand the basics of the language.

In this section, we’ll cover the basic elements of a Java program, including the syntax for declaring variables and writing methods.


In Java, variables are used to store data values. There are two types of variables: primitive variables and reference variables.

  • Primitive variables store values of the basic data types, such as int, float, and char.
  • Reference variables store references to objects.

To declare a variable, you use the following syntax:

[data type] [variable name] = [value]; 

For example, the following code declares a primitive int variable named myNum and initializes it with the value 10:

int myNum = 10; 

You can also declare multiple variables of the same type in a single statement:

int var1, var2, var3; 


In Java, a method is a block of code that performs a specific task. A method is declared using the following syntax:

[modifiers] [return type] [method name] ([parameters]) {  // method body } 

The modifiers specify the visibility of the method and whether it is static or final. The return type specifies the data type of the value that the method returns.

The method name is an identifier that represents the name of the method.

The parameters specify the data types and names of the values that are passed to the method.

The method body contains the statements that are executed when the method is called. To call a method, you use the following syntax:

[method name] ([arguments]); 

For example, the following code calls the myMethod() method with two int arguments:

myMethod(10, 20);

Java programming challenges

One of the most common Java programming challenges is memory management.

When you create an object in Java, it is stored in memory. If you don’t properly manage your objects, you can quickly run out of memory.

To avoid this, you need to be careful about how you create and destroy objects.

You also need to be aware of the different types of data that take up different amounts of memory.

Another common challenge is dealing with concurrency.

Java is a powerful language for creating multithreaded applications. However, dealing with concurrency can be tricky.

You need to be careful about how you access shared data and make sure that your threads don’t interfere with each other. Finally, another common challenge is performance.

Java is a fast language, but it is not always the fastest. Sometimes, you need to optimize your code to get the best performance.

This can be tricky, but there are many tools and techniques that can help. Overall, Java is a great language for creating powerful applications.

However, it does pose some unique challenges. By being aware of these challenges and how to overcome them, you can be a more successful Java programmer.

How to choose a Java course?

Choosing a Java course can be a daunting task, but it doesn’t have to be. There are a few key things to consider when selecting a Java course that will help ensure you get the most out of your learning experience.

Consider your level of experience. If you’re a complete beginner, you’ll want to look for a course that covers the basics of the language. If you’re already familiar with Java, you can choose a course that covers more advanced topics.

Think about your learning style. Some people learn best by watching video tutorials, while others prefer to read texts or follow along with exercises.

Find a course that uses a teaching method that you know you’ll be able to follow and understand.

Set some goals for what you want to learn. Do you want to be able to create simple Java programs? Build Android apps? Develop web applications? Once you know what you want to learn, you can find a course that covers those topics in depth.

Finally, don’t forget to consider the cost of the course. While you don’t want to choose the cheapest option available, you also don’t want to spend more than you need to.

Balance your budget with the other factors on this list to find a course that’s right for you.

Frequently Asked Questions

Can I learn Java in 3 months?

Yes, you can learn Java in 3 months. However, you will need to dedicate a significant amount of time each day to learning the language. If you are not already familiar with object-oriented programming, you may find Java to be a challenging language to learn.

Where can I learn Java online free?

There are a few places you can learn Java online for free. A quick Google search will reveal a few options like Codecademy, Udemy, and Coursera.

How can I teach myself Java?

There are a few different ways that you can go about teaching yourself Java. A lot of people find that the best way to learn is by using online resources, such as tutorials, books, and websites dedicated to teaching Java. Additionally, there are a number of software programs available that can help you learn Java through interactive lessons and exercises. Finally, if you have access to a Java development environment, you can try your hand at coding and see how it goes. Whichever method you choose, it is important to be patient and consistent in your learning, as with any new skill.

Is Java easy to learn?

No, Java is not easy to learn. It is a very powerful programming language that takes some time and effort to master. Java is not for beginners.

How many days it would take to learn Java?

There is no one definitive answer to this question. It depends on your level of prior programming experience, your willingness to devote time to learning Java, and other factors. However, most people report that it takes several weeks to learn the basics of Java programming.

What is Java used for?

Typically, Java is used for developing web applications, software applications, and mobile applications. Java can also be used for developing server-side applications, gaming applications, and big data processing applications.

What exactly is Java?

Java is a computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible. It is intended to let application developers "write once, run anywhere" (WORA), meaning that compiled Java code can run on all platforms that support Java without the need for recompilation. Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of the underlying computer architecture.

Is Java compiled or interpreted?

Java is both compiled and interpreted. Java source code is compiled into bytecode, which can be run on any Java Virtual Machine. However, the bytecode can also be interpreted by a just-in-time compiler.

Is Java still in demand?

Java is still in demand because it is a versatile and powerful programming language that can be used for developing a variety of applications. Additionally, Java is platform independent, which means that it can be run on any operating system.

Is there a certification for Java?

There is no certification for Java, but there are certifications for Java programmers. For example, the Oracle Certified Professional Java SE 8 Programmer certification is one option.


Learning Java online can provide you with a more affordable and convenient way to gain the skills you need to succeed in today’s competitive marketplace.

With so many online resources available, there is no reason why you shouldn’t take advantage of them. Start your search for the perfect online Java course today.



  1. Abu-Naser, Samy S., et al. “An intelligent tutoring system for learning java objects.” (2011).
  2. Čisar, Sanja Maravić, Robert Pinter, and Dragica Radosav. “Effectiveness of program visualization in learning java: a case study with jeliot 3.” International Journal of Computers Communications & Control 6.4 (2011): 668-680.
  3. Jordine, Tobias, Ying Liang, and Edmund Ihler. “A mobile-device based serious gaming approach for teaching and learning Java programming.” 2014 IEEE Frontiers in Education Conference (FIE) Proceedings. IEEE, 2014.
  4. Yau, Jane, and Mike Joy. “Architecture of a context-aware and adaptive learning schedule for learning Java.” Seventh IEEE International Conference on Advanced Learning Technologies (ICALT 2007). IEEE, 2007.
David Brown
About the author

David is a self-taught senior developer who lives in San Diego. He has over 10 years of experience in the software development industry and has worked on a variety of projects. He has a passion for coding, and a keen interest in the latest online education technology.

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