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Java Masterclass 2025: 130+ Hours of Expert Lessons (Udemy.com)

Gain real-world experience with OOP, coding exercises, and problem-solving for job-ready Java development skills

4.6
214,534 reviews

Created by: Tim Buchalka

Last updated August 2026

Our take

Based on the ratings of 214,534 students, a sample of their written reviews and the syllabus, as the course stood in August 2026. No course pays to be reviewed.

Tim Buchalka's Java course is one of the most enrolled Java courses on Udemy, with about 966,000 students and roughly 215,000 reviews averaging 4.6. It is also enormous: 136 hours across 739 lectures and 21 sections, running from JShell and IntelliJ setup through OOP, generics, lambdas, collections, streams, file I/O and a short concurrency section. It was last updated in August 2026. The syllabus suits people who want one long, structured path through the language rather than a quick tour, and who are willing to commit months, not weeks.

Reviewers praise the depth. Experienced developers say they still learned things, and beginners like that every video ships with its source code and that there are 50 coding exercises and 50 quizzes to work through. Students describe Buchalka as thorough and demanding, in a good way. The complaints are consistent, though. Several low-star reviews say the examples are overcomplicated, piling up four or five classes when a simple snippet would do, and that the code appears on screen rather than being typed live. Some feel the newer videos sound rushed, the course files come as a pile of separate zips, and two reviewers hit errors in Udemy's challenge checker that stopped them seeing whether an answer was right.

Value is hard to argue with: 136 hours for one paid course, refreshed last month, with lifetime updates promised. The pace is slow and deliberate, and one reviewer admits only the consistent will finish. Next to the Java Tutorial for Complete Beginners on our list, this is the long road, not the quick start. Anyone who wants a single course to carry them from zero to job-ready core Java, and can tolerate busy examples, should pick this one. Learners who need short, simple demos may prefer to start smaller and return for the later sections.

Best forPeople who want one long, structured Java course with 50 coding exercises and are prepared to spend months on it.
Skip it ifYou learn from short, simple examples; low-star reviews say the demos here pile on classes and get confusing.

Pros

  • Covers core Java end to end: OOP, generics, lambdas, collections, streams, file I/O and concurrency in 21 sections.
  • 50 coding exercises and 50 quizzes, plus source code attached to every video, which beginners call guard rails.
  • Updated in August 2026 and refreshed steadily since 2015, so the Java 17 material is current.
  • Experienced developers in the reviews say they still picked up new things from it.

Cons

  • Low-star reviews say examples are overcomplicated, with several classes introduced at once instead of simple demos.
  • Code is pasted onto the screen rather than typed live, and some find the newer videos rushed and monotone.
  • At 136 hours it is a months-long commitment, and course files arrive as many separate zips.
This course has guard rails (every video has a resources section with the source code), which makes it perfect for newbies.
Darryl Farmer, a student

Listed as all levels, and it does start from installation, but the busy examples mean total beginners should expect to rewatch sections.

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What you will learn

  • Learn the core Java skills needed to apply for Java developer positions in just 14 hours.
  • Be able to sit for and pass the Oracle Java Certificate exam if you choose.
  • Be able to demonstrate your understanding of Java to future employers.
  • Learn industry "best practices" in Java software development from a professional Java developer who has worked in the language for close to 25 years.
  • Acquire essential java basics for transitioning to the Spring Framework, Java EE, Android development and more.
  • Obtain proficiency in Java 17, as well as older versions incluing Java 11 and Java 8.
  • Java 21 features coming soon!

Course content

21 sections · 739 lectures · 136 hours of video 50 quizzes, 50 coding exercises, 4 articles

  1. 1Getting Started with Java Programming 1 free preview8 lectures · 10 min
  2. 2Java Development Environment Setup5 lectures · 20 min
  3. 3First Steps in Java Programming13 lectures · 2.6 hours
  4. 4Transitioning from JShell to IntelliJ IDEA: A Comprehensive IDE Guide16 lectures · 1.7 hours
  5. 5Mastering Java Expressions, Statements, Code Blocks, And Method Overloading15 lectures · 12 quizzes · 2.4 hours
  6. 6Mastering Conditional Logic, Loops, And Interactive Java Applications20 lectures · 17 quizzes · 3.2 hours
  7. 7Mastering Java OOP: Classes & Inheritance25 lectures · 8 quizzes · 3.9 hours
  8. 8Advanced OOP Techniques: Composition, Encapsulation, and Polymorphism in Action17 lectures · 3 quizzes · 2.6 hours
  9. 9Advanced Arrays in Java: Single & Multi-Dimensional Techniques13 lectures · 3 quizzes · 1.7 hours
  10. 10Mastering Lists, Iterators, and Autoboxing: ArrayList, LinkedList & Enums18 lectures · 3 quizzes · 2.6 hours

Who it is for

The instructor says it suits

  • New coders seeking to start a career in tech with foundational Java skills.
  • Software devs aiming to update their Java knowledge to the latest version.
  • Professionals targeting the Oracle Java Certification for career growth.
  • Self-taught programmers looking to formalize and deepen their Java expertise.
  • Tech enthusiasts interested in building Java applications for personal or professional use.

What you need before you start

  • A computer with either Windows, Mac or Linux to install all the free software and tools needed to build your new apps (I provide specific videos on installations for each platform).
  • A strong work ethic, willingness to learn, and plenty of excitement about the awesome new programs you’re about to build.
  • Nothing else! It’s just you, your computer and your hunger to get started today.

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Course Description

Step into the world of programming with our Java Programming Masterclass, meticulously updated for 2024. Since its inception in 2016, this course has evolved continuously, ensuring you receive the latest and most relevant Java education. Purchase once and gain access to a lifetime of updates without any additional cost.

Join an expansive community of over 832,000 students who have chosen my in-depth Java programming course for its thorough and detailed curriculum. Like Benhur G., who appreciates that "all lessons helpful in your Java Programming journey are included," you'll find our course suitable for all levels of expertise.

Whether you're aiming to:

  • Secure your first Java programming job

  • Advance to a senior software developer role

  • Prepare for the Oracle Java certification exam

  • Develop your own Java applications

Our Java Masterclass is your comprehensive resource for achieving these goals and more.

Why Java?

Its enduring presence in the tech world is unmatched, making it a wise choice for both budding and experienced programmers. Its popularity, as evidenced by Java's top 3 ranking in language use worldwide, promises abundant career opportunities.

Our course is designed to provide a real-world perspective on programming. As Pallala gowtham R. notes, "Tim's emphasis on coding over theory is exceptional," enabling you to build practical coding skills that are rare to find alongside theoretical knowledge.

Bemnet Bekele B. finds the course "very good" and appreciates that "every topic is explained in detail," making it accessible for beginners. Similarly, Suyash praises the "detailed explanation of JAVA language," highlighting the instructor’s dedication to ensuring students grasp each concept through repetition and clarity.

This Masterclass isn’t just about quantity but quality. With over 100 hours of content, the course is structured to facilitate learning at your own pace. Devansh R. finds the course "very helpful," noting that even with intermediate Java knowledge, there were many new things to learn.

The course is curated to give you a solid grounding in Java essentials in just the first 14 hours. Bhuvanendra's experience is a testament to this: "After completing the first 8 sections, I can see myself improved a lot in the way I write code."

With Java 17 as the focal point, you're learning a version with long-term support and current industry relevance. Moreover, as new versions like Java 21 emerge, this course will adapt, providing you with the most contemporary and robust Java education available.

Choose this course for its bestseller status and join a thriving learning community backed by exceptional reviews. My commitment to quality and continuous improvement means you receive an education that’s both current and comprehensive.

You're not just enrolling in a course; you're gaining a partner in your learning journey. With support to address your questions from myself, teaching assistants, and the community, and regular updates to the content, you'll never feel stuck.

Take the leap today with our 30-day, full money-back guarantee. Whether you seek to develop remarkable programs or embark on a transformative career, you have everything to gain.

Enroll now and become part of a legacy of success. Your Java journey begins here.
Read More All Levels All Levels product length iconTime: 135.7h

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Instructor Details

Tim Buchalka

Tim's been a professional software developer for over 40 years.  During his career, he has worked for major companies such as Fujitsu, Mitsubishi, and Saab.

His video courses are used to train developers in major companies such as Mercedes-Benz, Paypal, VW, Pitney Bowes, IBM, and T-Mobile just to name a few (via the Udemy for Business program).

What makes Tim unique is his professional programming career - many instructors have never programmed professionally, let alone had a distinguished professional development career like Tim.

Tim has trained over 1.73 million students how to program, way more than a typical IT Professor at a college does in a lifetime.

In fact, Tim's courses are often purchased by students struggling to get through college programming courses.

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Reviews

4.6

214,534 ratings on Udemy

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By Shlomi Kiko on 8/20/2026

As an experienced developer and data engineer, i can really say it's one of the best courses i've seen. I've personally learned a lot.

By Tranouez Yannick on 8/2/2026

Théorie + pratique => parfait Beaucoup de cours font soit l'un, soit l'autre, celui-ci est vraiment complet. Bémol ? => Le cours et long et nous sommes en pleine période ou l'IA boulverse nos habitudes et notre façon d'apprendre. Aujourd'hui plus que jamais, il est nécessaire de comprendre ce qui se passe sous le capot et ce cours est, je le répète, parfait.

By Trishit Hazra on 7/24/2026

The course content is deep. There are a lot of things that are covered in terms of the language itself. But the pedagogy is not good at all. Tone is monotonous. My biggest complain about this course is the overly complicated examples. At some point you just get lost trying to understand what Tim is even talking about. It makes the course so frustrating to finish. It takes 2 hrs to finish more than half a section. Please for the love of good. Update this course with simpler examples.

By Ebrahim Yasser on 7/11/2026

The explanation is systematic, deep, and amazing. Maybe this is the best course on earth to explain Java from my POV

By Darryl Farmer on 5/1/2026

This course is a great way to start your programming learning journey. People have told me Java is one of the hardest programming languages, but it's all a matter of perspective. This course has guard rails (every video has a resources section with the source code), which makes it perfect for newbies. The perfect launching platform.

By Laura Pearson on 4/18/2026

Great course for anyone who has knowledge of other programming languages and wants to learn java but is overload by all the available resourses. This actually a great well rounded course to start and is well structured and the instructor is really good!

By Fatma Zemann on 3/16/2026

Ich hatte anfangs Sorge ob ich einem englischsprachigen Kurs folgen kann, aber die Entscheidung hat sich für mich ausgezahlt, Herr Buchalka weiß wirklich sehr viel und fordert einen richtig. Nach den Algorithmusaufgaben dampft einem erstmal der Kopf. OOP habe ich mit seiner Hilfe etwas besser verstanden, er hat sehr viel Arbeit in diesen Kurs gesteckt, der wurde mir zurecht als Goldstandard empfohlen. Wer Herausforderungen mag, viele Übungen und vor allem selber denken möchte der wird hier fündig.

By Andrew Thornton on 3/6/2026

This is a hugely comprehensive course. Very well written, with really good coding exercises. For someone wanting to learn Java, or for someone wanting to extend their Java knowledge this is very highly recommended.

By Vaibhavi on 2/16/2026

I'm writing this review after finishing Section 10. The course covers the fundamentals and advanced topics well, but the teaching structure is a bit frustrating. The instructor explains everything through long slide presentations before actually showing any code. This makes the lessons feel boring and distracting. It would be a much better course if he showed the code and features first, then used the slides to summarize the concepts afterward.

By Swaminathan S on 12/17/2025

IT was an excellent and comprehensive course, with a lot of hands-on assignments which helped to strengthen the understanding of the key concepts.

Showing all 10 reviews on CourseDuck

Read all 214,534 reviews on Udemy

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Quality Score

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Overall Score : 92 / 100

Visit course on Udemy Write a review
  • Video Duration: icon 135.7h
  • Price: $149.99
  • Provider: icon Udemy
  • Updated: icon August 2026
  • Level: All Levels All Levels
  • Language: icon English
  • Certificate: icon Yes
  • Lectures:739 in 21 sections
  • Practice:50 quizzes, 50 coding exercises
  • Students:965,700
  • Subtitles:31 languages
  • Udemy badge:Bestseller
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