With over 207,000 students enrolled, this is perhaps the best online Java courses on Udemy. It has over 40K 4.6 reviews, which speaks much about its quality. However, the most essential aspect of this course that they enjoy is that the instructor has regularly updated it to reflect changes in Java 8 and Java 9. It's a 72-hour course that covers everything a Java developer needs to know, including data structures, OOP, Core Java Fundamentals, Java Collections, MultiThreading, File IO, Networking, Database, Java 8, Unit Testing, and latest Java developments.

This course has a lot of social proof because the instructor, Tim Buchalka, is also a well-known Java instructor on Udemy. Every topic is thoroughly taught, and you will learn each concept one program at a time. You will not only learn principles, but also free tools such as Eclipse, Maven, and others that are necessary for Java programming. In a nutshell, one of the most comprehensive courses for learning Java, suited for both novices and Java developers who are returning to the language after a long absence, such as the last time they saw Java code before JDK 1.5.

Why should you take this course?

• You'll be joining around 600,000 students who have already registered in the course, which has been a best-seller since its release on Udemy. There are almost 140,000 student reviews on the site. It is regarded as the finest course for beginners to learn Java.

What makes this course a bestseller?

• Thousands of others, like you, were dissatisfied and fed up with fragmented YouTube lessons, incomplete or obsolete courses that presume you already know a lot, and bulky, college-like textbooks that might put even the most caffeine-fueled coder to sleep.
  
• They were tired of low-quality classes, poorly explained topics, and complicated information presented incorrectly, just as you were. That's why so many people succeed in this comprehensive Java developer training program. It was created with the goal of maintaining simplicity and a smooth transition from one section to the next.
• This course assumes no previous coding experience and takes you from absolute beginner core concepts, like showing you the free tools you need to download and install, to writing your very first Java program. You will learn the core java skills you need to become employable in around 14 hours, and if you choose to, can take advantage of all the additional content in the course. It's a one-stop shop to learn java. If you want to go beyond the core content you can do so at any time.

What you will learn:

• All the essential Java keywords, operators, statements, and expressions needed to fully understand exactly what you’re coding and why - making programming easy to grasp and less frustrating
• You will learn the answers to questions like What is a Java class, What is polymorphism and inheritance and to apply them to your java apps.
• How to safely download and install all necessary coding tools with less time and no frustrating installations or setups
• Complete chapters on object-oriented programming and many aspects of the Java API (the protocols and tools for building applications) so you can code for all platforms and derestrict your program’s user base (and potential sales)
• How to develop powerful Java applications using one of the most powerful Integrated Development Environments on the market, IntelliJ IDEA! - Meaning you can code functional programs easier. IntelliJ has both a FREE and PAID version, and you can use either in this course.

Rating: 4.6/5.0

Enroll here: udemy.com/course/java-the-complete-java-developer-course

This Coursera Specialization is for aspiring software engineers who have some programming experience in at least one other programming language (e.g., Python, C, JavaScript, etc.) and wish to use object-oriented design with Java to address increasingly complicated issues. In addition to studying Java, you'll get hands-on experience with two Java development environments (BlueJ and Eclipse), as well as learn how to program with graphical user interfaces and create programs that can handle enormous volumes of data.

In this Specialization, you will demonstrate your new proficiency in Java and object-oriented programming design through the development of four Java applications: an analysis of CSV data files, an encryption program, an interactive map for displaying geospatial data, and a program that will allow users to manage, manipulate, and reason about large sets of textual data.

Take the courses

• A Coursera Specialization is a series of courses focused on mastering a skill. To get started, enroll directly in the Specialization or review its courses and choose the one you want to start with. When you subscribe to a course that is part of a Specialization, you are automatically subscribed to the full Specialization. It is possible to complete only one course: you can suspend your training or terminate your subscription at any time. Visit your student dashboard to track your class enrollments and progress.

Practical project

• Each Specialization includes a hands-on project. You must successfully complete the project(s) to complete the Specialization and earn your Certificate. If the Specialization includes a course dedicated to the practical project, you will have to complete all the other courses before you can start it.

Obtain a Certificate

• When you complete all the courses and the practical project, you will earn a Certificate that you can share with potential employers and your professional network.

About this course:

• Shareable certificate: Get a Certificate when you complete
• 100% online courses: Start now and learn when it's convenient for you.
• Flexible schedule: Set and stick to flexible deadlines.
• Beginner level: No prerequisite knowledge.
• Approximately 5 months to complete: Recommended pace of 6 hours/week
• Subtitles: English, Arabic, French, Portuguese (European), Italian, Vietnamese, Korean, German, Russian, Spanish, Chinese (Simplified)

Rating: 4.6/5.0

Enroll here: coursera.org/specializations/object-oriented-programming

This Specialization is designed for novices and will teach you essential programming ideas as well as how to construct programs to tackle difficult issues. You'll also learn the fundamental skills required of a software engineer to tackle real-world challenges, such as devising algorithms and testing and debugging systems. The specialization includes four courses: Object-Oriented Programming in Java, Data Structures, Advanced Data Structures, and Mastering the Software Engineering Interview. All of the courses in this specialization are free to audit, but if you want a certificate, you'll have to pay money, which isn't a bad offer.

About this Specialization:

• With this introduction to Java, one of the most popular programming languages and the backbone of the Android operating system, you may take the first step toward a career in software development. This Specialization is designed for novices and will teach you essential programming ideas as well as how to construct programs to tackle difficult issues. You'll also learn the fundamental skills required of a software engineer to tackle real-world challenges, such as devising algorithms and testing and debugging systems.

Applied Learning Project:

• This Specialization, which is based on projects, will assist you in developing a portfolio of work to exhibit your new programming skills. You will construct a recommender engine similar to those used by Netflix or Amazon for the capstone. An interactive webpage that applies filters to photographs, an analysis of CSV data files, an encryption program, and a predictive text generator will all be included in your portfolio.

About this course:

• Shareable certificate: Get a Certificate when you complete
• 100% online courses: Start now and learn when it's convenient for you.
• Flexible schedule: Set and stick to flexible deadlines.
• Beginner level: No prerequisite knowledge.
• Approximately 5 months to complete: Recommended pace of 4 hours/week
• Subtitles: English, Arabic, French, Portuguese (European), Italian, Vietnamese, German, Russian, Spanish, Korean

Rating: 4.6/5.0

Enroll here: coursera.org/specializations/java-programming

Though Java has evolved significantly since Java SE 8, it hasn't changed nearly as much in Java 9 and Java 10. As a result, a course that teaches Java 8 syntax is beneficial, and this is one of them. This course, like the previous two, covers all important Java concepts such as variables, methods, control statements, loops, arrays, and Strings, object-oriented programming, file handling, database, multithreading, and collections.

It also covers functional programming and Java 8's new capabilities, as well as Java FX, which is similar to Swing in that it allows you to construct GUI-based Java applications. This course will even teach you how to make a complete Tic-Tac-Toe game. In a nutshell, a good course for learning Java programming from the ground up.

Who is this course for?

• Beginner coders, and anyone new to Java!
• Experienced Java programmers who want to stay sharp!
• Developers looking to upskill for a project or career change
• College students and anyone studying Java!

What you will learn:

• Master the fundamentals of Java programming!
• Learn all the tips, tricks and theory behind the code!
• Build exciting portfolio projects - put your new skills to work straight away!

Rating: 4.6/5.0

Enroll here: udemy.com/course/the-complete-java-developer-course-from-beginner-to-master/

This Coursera course will teach you how to code in Java and improve your programming and problem-solving skills. You'll learn how to construct and debug programs as well as design algorithms. You'll develop programs that access and alter photos, webpages, and other forms of data using bespoke open-source classes.

By the end of the course, you will have created a program that analyzes comma-separated value (CSV) files to determine the popularity of different baby names in the United States over time. This course is also eligible for financial help, and if you complete it, you will receive a certificate.

What you'll learn:

• Edit, compile, and run a Java program;
• Use conditionals and loops in a Java program;
  
• Use Java API documentation in writing programs.Debug a Java program using the scientific method;
  
• Write a Java method to solve a specific problem;
• Develop a set of test cases as part of developing a program;
• Create a class with multiple methods that work together to solve a problem; and
• Use divide-and-conquer design techniques for a program that uses multiple methods.

About this course:

• Flexible deadlines: Reset deadlines based on your availability
• Shareable certificate: Get a Certificate when you complete
• 100% online: Start now and learn when it's convenient for you.
• Beginner level: Approx. 5 p.m. to finish
• Subtitles: Arabic, French, Portuguese (European), Italian, Vietnamese, Korean, German, Russian, English, Spanish

Rating: 4.6/5.0

Enroll here: coursera.org/learn/java-programming

This bestselling, in-depth course is ideal for absolute beginners and aims to prepare students for Java developer careers by preparing them for the Oracle Java certificate exam and assisting them in gaining proficiency in Java 8 and Java 11.

With nearly 600,000 students enrolled and over 140 thousand reviews (tens of thousands of which are 5-star), these comprehensive java tutorials cover everything you'll ever need. This course is designed to give you the Java skills you need to get a job as a Java developer. By the end of the course, you will understand Java extremely well and be able to build your own Java apps and be productive as a software developer.

Whether you want to:

• Build the skills you need to get your first Java programming job
  
• Move to a more senior software developer position
• Pass the oracle java certification exam
• Or just learn java to be able to create your own java apps quickly.
• ... This complete Java Masterclass is the course you need to do all of this, and more.

Why would you choose to learn Java?

• The reality is that there is a lot of computer languages out there. It's in the hundreds. Why would you choose the Java language?
• The number one reason is its popularity. According to many official websites that track the popularity of languages, Java is either #1 or in the top 3. Popularity means more companies and their staff are using it, so there are more career opportunities available for you if you are skilled in the language.
• The last thing you want to do is pick a language that is not in mainstream use. Java came out in the 1990s and is still very popular today.

What you will learn:

• All the essential Java keywords, operators, statements, and expressions needed to fully understand exactly what you’re coding and why - making programming easy to grasp and less frustrating
• You will learn the answers to questions like What is a Java class, What is polymorphism and inheritance and to apply them to your java apps.
• How to safely download and install all necessary coding tools with less time and no frustrating installations or setups
• Complete chapters on object-oriented programming and many aspects of the Java API (the protocols and tools for building applications) so you can code for all platforms and derestrict your program’s user base (and potential sales)
• How to develop powerful Java applications using one of the most powerful Integrated Development Environments on the market, IntelliJ IDEA! - Meaning you can code functional programs easier. IntelliJ has both a FREE and PAID version, and you can use either in this course.

Rating: 4.6/5.0

Enroll here: udemy.com/course/java-the-complete-java-developer-course

This is a very new course on Udemy for learning Java, thus it's also the most up-to-date. It teaches you how to program in Java using tools like JShell, which was introduced in Java 9. Without a doubt, it's a fantastic tool that makes experimenting with Java a breeze. The course structure is also excellent, with a step-by-step approach to teaching. Having taken some of the instructor's Spring courses in the past. The course is also extremely thorough, covering everything from Java foundations to Object-Oriented Programming, Java Collections, Generics, Multithreading and Concurrency, Functional Programming Networking, File Handling, and Exception Handling.

If you are learning online Java courses to gain a job, you should feel quite comfortable reading and developing Java programs once you have completed a course. You should also feel secure taking any Java interview once you have completed a course. In short, it's currently the best and most up-to-date Java training available, and the best part is that it's free. In Udemy, the instructor keeps their course for free for a set period of time in order to meet their promotional goals, after which it is transformed into a paid course. So sign up now before it turns into a paid course. Once you've enrolled in the course, you'll have unlimited access to all of the chapters and accompanying materials for the rest of your life.

What you will learn:

• HANDS-ON with EXERCISES and PUZZLES: Learn Object Oriented Programming with Java
• CLEAR YOUR JAVA INTERVIEWS: GET ALL the SKILLS to demonstrate an EXPERTISE with Java Programming

Rating: 4.5/5.0

Enroll here: udemy.com/course/java-programming-tutorial-for-beginners

This is yet another fantastic Udemy Java course that you can use to learn Java from the ground up. It's an amazing course, and they had a lot of fun with the tile "In-Depth." The instructor is really knowledgeable in Java, and his explanations are fantastic, making learning more enjoyable.

This is a very deep and complete course, similar to the last online Java courses, and it covers the bulk of Java subjects a beginner would like to learn, such as variables, methods, classes, collections, data structures, threads, networking, and so on. On the negative side, the course is primarily a slide-based course with a few code examples thrown in for good measure. A few more code samples, preferably using modern tools such as JShell, would be quite beneficial.

Who is this course for?

• Complete beginners. They got you covered. They'll start from compilation & interpretation.
• Programmers switching from other languagesJava programmers who are not feeling confident about their existing Java skills
• Java programmers who want to learn about design principles & best practices. Any serious programmer should know this stuff!
  

What you will learn:

• Gain in-depth understanding of core & advanced features of Java including JVM internals
• Master design principles, best practices and coding conventions for writing well-designed, professional Java code
• Get real-world experience by developing an instructor-led Java EE-based Web application using technologies like JSP, Servlets and MySQL
• Set firm foundation in Java for the rest of your career. That's a promise!
• Master Object-Oriented Programming concepts by using a real-world application as a case study
• Master Exceptions, IO, Collections Framework, Generics, Multi-threading, Databases, etc. with best practices
• Solid understanding of Functional-style Programming using Java 8 constructs like Lambdas & Streams
• Set yourself up to become an Oracle Certified Associate, Java SE 8 Programmer (1Z0-808)

Rating: 4.5/5.0

Enroll here: udemy.com/course/java-in-depth-become-a-complete-java-engineer

Pluralsight has a terrific online Java courses for beginners. The fundamentals of Java, including Class, Object, Data Types, Threads, Files, Error Handling, and other core Java concepts, will be covered. Jim Wilson, the instructor, is a seasoned software engineer with more than 30 years of expertise.

In a nutshell, a good course for learning Java from the ground up. It covers the Java programming language and servers in depth, as found in all Java-based development tasks, such as server-side and client-side development, as well as Android apps. This course provides complete coverage of the Java programming language and serves as a strong foundation for all Java-based development environments including client-based, server-side, and Android.

What you'll learn

• This Java fundamentals course provides complete coverage of the Java programming language giving you the strong language foundation required for any Java-based development environment.
• Whether targeting a client-based, server-side, or Android environment, this course provides you with everything you need to quickly ramp up and become an effective Java programmer.

Table of contents

• Course Overview: 1min
• Introduction and Setting up Your Environment: 14mins
• Creating a Simple App: 37mins
• Variables, Data Types, and Math Operators: 30mins
• Conditional Logic, Looping, and Arrays: 50mins
• Representing Complex Types with Classes: 43mins
• Class Initializers and Constructors: 29mins
• A Closer Look at Parameters: 32mins
• Class Inheritance: 46mins
• More About Data Types: 51mins
• Exceptions and Error Handling: 36mins
• Working with Packages: 32mins
• Creating Abstract Relationships with Interfaces: 36mins
• Static Members, Nested Types, and Anonymous Classes: 27mins

Rating: 4.5/5.0

Enroll here: pluralsight.com/courses/java-fundamentals-language

This ExpertTrack is intended to help you improve your software development skills by covering popular programming languages such as Python and Java. You'll learn about the world of software development and the skills necessary to become a high-performing developer. You'll have access to Github, an industry-leading integration software company, which will provide you with in-demand employability skills.

You'll get a taste of software development and learn what it takes to be a successful developer by working with some of the most popular programming languages and integration software on the market. Your theoretical knowledge will be put to the test in a series of practical exercises that will allow you to put your new Python and Java skills to the test and gain the confidence to use them in a professional setting.

You'll dive deep into the Python programming language, examining its dynamic semantics and key aspects of code syntax. In addition, you'll learn how to use variables, data types and operators, arrays, and control statements in Java. You will be able to describe applications for the Python and Java programming languages, create simple objects in Python and Java, and be familiar with the key characteristics, traits, and career paths of a professional software developer after completing this course.

By the end of the ExpertTrack, you’ll be able to...

• Describe applications for Python and Java programming languages
• Create simple objects using Python and Java, independently
• Describe key characteristics, traits and careers pathways of a professional developer

It’s best suited to:

• Career-starters or career-changers looking for an entry level role as a software developer.
• Established technology professionals looking to better understand software development.
• Entrepreneurs who need to understand how to translate an idea for a new product or service into a finished digital one.
• Project, product or general managers looking to gain experience of developer activities.

Rating: N/A

Enroll here: futurelearn.com/experttracks/software-development-with-python-and-java