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Functional & Reactive programming in Java : Modern Style (Udemy.com)

Java Programming MasterClass, Design Patterns,Data Structures,Lambda,Streams,Collectors,Collections,Optionals & RxJava

Created by: HeadEasy Labs

Last updated October 2023

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What you will learn

  • Functional Programming in Java
  • Reactive Programming In Java
  • Streams and Parallel Streams how they work under the Hood
  • Collectors and How Collectors Works under the Hood
  • RxJava 3.0
  • Functional Data Structures
  • Collections in Functional Way
  • Java 8 and 8+
  • Advanced Concepts of Java Like Optional and Much More

How it compares

Against the other 231 rated Udemy courses in Java on CourseDuck:

  • Rating4.6 out of 5higher than 71% of them
  • Reviews2,239#89 of 232 by number of reviews
  • Length20.8 hourslonger than 80% of them
  • Last updatedOctober 2023earlier than 52% of them

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Course Description

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Some of our feedback received to help you make the decision.


★★★★★

No Words!! Explaination is very simple with nice examples . I recomment his course for every one who wants to learn Functional programming. I used to feel that functional programming is difficult. Functional programming is made very simple. I am very happy with this instructor. Especially, voice of instructor is very sweet

★★★★★

Is the most simple and clear explanation of lambda.

★★★★★

Excelente curso, todo muy bien explicado y con ejercicios. Gracias

★★★★★

Strict and concise with short brief examples

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Course Details what we cover :

Best in Class Master Course to learn Advanced Java Concepts -

  1. Functional Programming

  2. Reactive Programming

  3. Optional wrapper to null

  4. Functional Data Structures

  5. Functional Design Patterns

  6. Streams and Parallel Streams

  7. Stream and Parallel Streams Deep Dive

  8. Collectors

  9. Collectors how they work internally

  10. Functional Data Structures

  11. Collections in Functional Way

  12. Reactive Java

  13. RxJava 3.x

This is a Very detailed Course on the subject of Functional Programming & Reactive with a lot of programming practice. We have covered all the prospective like Data Structures, Design Patterns, Collections in Functional Programming.

This is a must-have course for Developers or professionals who wants to understand the Concepts in Deep.


Hope you will find the content useful, we have designed the course in a way so that you can immediately use the learning in your next project.


All The Best and Happy Learning!

Basics>Strong;




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Instructor Details

HeadEasy Labs

Previously We were Basics>Strong;


HeadEasy – Creating Impactful Learning for the Digital Age

At HeadEasy, we believe learning should be simple, engaging, and transformative. In today’s fast-paced digital world, learners expect experiences that are interactive, flexible, and inspiring—and that’s exactly what we deliver.

We specialize in designing and developing engaging digital learning experiences that go beyond traditional classrooms. Our approach blends instructional design, storytelling, interactivity, and technology to create learning journeys that capture attention, build curiosity, and drive real outcomes.

Whether you’re an educator, trainer, instructional designer, or content creator, our courses equip you with practical strategies, frameworks, and tools to design learning that truly makes an impact.

With a focus on clarity, creativity, and learner success, HeadEasy is committed to helping you create digital learning that stands out, engages deeply, and lasts.

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Reviews

4.6

2,239 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Cristian Leonardo Toro Sarmiento on 10/31/2025

A very comprehensive course. The only missing thing would be more practical examples for reactive code, in particular method composition that uses reactive code (e.g., observables that call methods that return observables/non-observables and so on).

By Anonymized User on 5/1/2024

I just got over section 13 and I have to say this course helps me understand stream API at a deeper level. I have read through OCP books but couldn't wrap my head around all the details. On my way to finishing this course, thank you very much basicstrong team. I leave the rating at 4.5 because sometimes there are some loud background noises that are hard to not notice, I hope basicstrong team will sort it in the future.

By Manickaraj Murugesan on 2/11/2024

Overall, I found this course is effective. The idea of starting with Functional programming for the reactive programming is really good. However this course depth towards the reactive content is less & and the explanations too. The author's narrative delivery is good particularly the author was keep mentioning the tech terms wherever required. + Course content + Length + Speed + Apendix on design pattern and generic was good to refer and refresh - Depth of the reactive topics - Some realtime examples/assignments could have been better

By Chinmay Sawant on 1/17/2024

"Immersed in an exhaustive exploration of Functional Programming with RXJava. The course delves deep into intricacies, ensuring a comprehensive understanding. While it may feel detailed, I highly recommend persevering and envisioning the practical application. Looking forward to translating this knowledge into a robust project. #FunctionalProgramming #RXJava #ProfessionalDevelopment"

By Julian Garcia Ortiz on 10/7/2022

I give four (4) stars because the course covers important topics regarding Java functional programming, In my opinion, It is well structured; however, the course would be better if fix certain important details: > Modifying the examples with use cases of code that happen in real life or the work environment, will generate more motivation in students to learn. So, the concepts and techniques that were taught should be well clarified to it will be applied better. > Please, edit the audio of videos avoiding keys press sound, because it generates distraction and annoyance. Thank you so much for sharing your knowledge, by spending your time and effort to create this interesting course.

By Anonymized User on 8/6/2022

Course is good. But it mostly contains different types of methods and their use case and the typing sound is very irritating. Looking for a more conceptual course because anyways we can't remember these many number of methods.

By Rodrigo Santiago on 1/31/2022

I am a senior software engineer. I used to write a lot of imperative programming with OOP. I found this to be THE very best programming paradigm to be added to OOP. I am on half my way through the course. Just ending the functional programming part. It is JUST what I needed - a very concise, thorough demonstration of the main concepts of functional programming. Very easy to understand explanations and coding. You will use these concepts in just any functional programming language (given that you could learn its syntax). For Junior programmers, either you learn functional programming, or you will be kicked out of the market faster than you think. This is a great course to fulfill that market need. Thank you so much for creating this course. I am amazed and refreshed :-)

By Ilianna spiliopoulou on 11/23/2021

The general concepts are explained very well. There are many examples in code. I wish some of the more advanced and complicated concepts were explained a bit better, but i guess thats also up to learners to watch again and again until they understand. I found very annoying to my ears the way the teacher hits the keys on the keyboard. She really punishes that keyboard... and my ears

By Andrej Jagar on 4/10/2021

I took this course to get more acquainted with reactive java. In my opinion it is a good course to get the general information and knowledge about the topic, however some of the topics could be explained better. From my opinion at the normal speed this course sounds like it is prerecorded and read from the script, i did this course using 1.5-2 speed at which it sounded way better.

By Lalit Ramchandra Nagpal on 6/28/2020

Excellent explanation, appropriate pace, knowledgeable Instructor - has good depth of knowledge in what she teaches. So good to learn from Instructor like her. The transcript of the course is also correct exactly on what she says, so that's good too. Highly recommend this course.

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Overall Score : 92 / 100