Reactive Programming Fundamentals with RxJava 3

Build responsive and resilient Java applications by mastering asynchronous data streams and the Reactive Streams specification.

4.2 (197) ⏱ 1h 45m 📚 4 lessons

About this course

In an era of high-concurrency and real-time data, traditional synchronous programming often falls short when scaling for modern demands. Reactive programming offers a powerful paradigm for building systems that remain responsive and efficient under heavy load. This course provides a clear path to understanding how to handle asynchronous data streams and event-based logic using the industry-standard RxJava library. You will transition from standard imperative coding to a functional, declarative style that simplifies complex asynchronous tasks. By the end of this course, you will be able to design systems that are more resilient to errors and capable of processing large volumes of data without blocking resources. What you'll learn: - Understand the Reactive Manifesto and the core principles of responsive, resilient systems - Master RxJava 3 fundamentals including Observables, Observers, and the push-based data model - Apply powerful operators to transform, filter, and combine asynchronous data streams - Manage concurrency and threading using Schedulers to ensure optimal performance - Implement backpressure strategies with Flowables to prevent system overloads - Explore how reactive patterns interact with modern Java features like Virtual Threads The course begins with foundational concepts such as the Observer design pattern and the difference between push and pull data models. You will then progress through written explanations of stream manipulation, error handling, and the implementation of the Reactive Streams API. This course is designed for Java developers who want to modernize their approach to concurrency and asynchronous programming. No prior experience with reactive libraries is required, though a basic understanding of Java syntax is recommended. Start your journey into the reactive paradigm and build more robust Java applications today.

What you'll get

  • 📜 Certificate of completion
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  • 💬 Personal AI tutor
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 30-day refund
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  • Short & focused
    1h 45m of practical content

Reviews (3)

Jacob Mitchell AU
★ 3 · 2026-03-18T22:19:56+00:00

Really enjoyed the flow of this. The practical applications discussed were spot on. Great course!

Shahrul Nizam bin Abdullah MY Verified learner
★ 5 · 2025-05-06T20:13:56+00:00

Couldn't have asked for a better learning experience. The structure flowed perfectly, and the examples were incredibly relevant. Highly recommend!

Hassan bin Kassim MY Verified learner
★ 4 · 2025-01-17T10:23:56+00:00

A good introduction. The structure was mostly clear, but I wish there were a few more real-world examples. Still, learned a lot.

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Yes — full refund within 30 days, no questions asked.

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Forever. Once you purchase, the course is yours to revisit anytime.

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Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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