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Modern Java: Mastering Features from Java 8 to Java 25 (Udemy.com)

"Master Java 8 to Java 25: Functional Programming, Records, Sealed Classes, Pattern Matching, and more through hands-on.

4.5
15,647 reviews

Created by: Pragmatic Code School

Last updated March 2026

Our take

Based on the ratings of 15,647 students, a sample of their written reviews and the syllabus, as the course stood in March 2026. No course pays to be reviewed.

This is a code-along update course from Pragmatic Code School, a training outfit that builds its lessons around hands-on examples. It starts with the Java 8 functional features, lambdas, streams, Optional and the date and time API, then moves on to var, text blocks, records, sealed classes, pattern matching, Stream Gatherers, the HTTP client and modules. The syllabus shows 147 lectures across about 15.8 hours, and the last update was in March 2026, with Java 25 material included. It is aimed at developers who already know basic Java.

Reviewers like the many small, simple examples and say the streams sections stand out. One described it as a great way to catch up after years away from Java, and another praised the instructor's clear English and clear concepts. The complaints are consistent. Two low reviews say simple ideas are stretched across several lessons, which frustrates experienced developers. Others mention uneven sound, a rushed IntelliJ setup on Windows, some code that goes unexplained, and examples that need updating for newer versions. Of about 15,600 ratings, roughly 13,900 are four or five stars.

With about 74,800 students, it is a well worn route for modernizing Java skills. Treat the first half as a refresher if you already use streams, and jump to the records, sealed classes, pattern matching and Gatherers sections, which are short and focused. Newcomers to Java should start elsewhere, since the course expects the basics. For a developer returning to Java, it is a solid, practical pick, just not a quick one.

Best forWorking Java developers returning after years away who want to catch up on lambdas, streams and newer syntax.
Skip it ifYou already use streams daily and want advanced depth, since reviewers call parts of it slow and basic.

Pros

  • Many short, simple code examples that reviewers say stick through repetition
  • Streams sections are praised as helpful, within a logical order of topics
  • Covers Java 8 through 25, including records, sealed classes and Gatherers
  • Last updated in March 2026, with Java 25 material included

Cons

  • Experienced developers say simple topics are stretched over several long lessons
  • Sound is uneven, and a few examples need updating for newer Java versions
  • Windows and IntelliJ setup is rushed, and some code goes unexplained
Fantastic course for Java developers to catch up to the latest Java features.
Ramakrishnan Srinivasan, a student

Labeled All Levels, but it suits developers with basic Java who know an IDE, not true beginners.

Featured in our guide: The 10 Best Java Courses on Udemy in 2026

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What you will learn

  • Learn Java 8, Java ll, Java 17, Java 21 , Java 25 Features by coding it.
  • Learn Functional programming in Java
  • Complete understanding of Lambdas, Streams , Optional via code.
  • Students will be able to implement the new Java 8 concepts in real time
  • Learn to build complex Streams Pipeline.
  • Learn the new Date/Time Libraries in Java 8
  • Learn to use Method Reference , Constructor reference syntax.
  • Learn and understand Parallel Programming with the Streams.
  • Student will be able to upgrade their Java knowledge with the new Functional Features.
  • This course will be continuously updated.
  • LVTI, TextBlocks, Enhanced Switch, Record Classes
  • Learn Pattern Matching to write concise and structured code
  • Use Sealed Class to apply controlled Inheritance
  • Java Platform Module System(JPMS) and its benefits
  • All the new features in Modern Java

Course content

33 sections · 147 lectures · 16 hours of video 3 articles

  1. 1Getting Started 2 free previews2 lectures · 5 min
  2. 2Getting Started Modern Java1 lecture · 7 min
  3. 3Local Set Up1 lecture · 7 min
  4. 4Source Code and Slides for the course2 lectures
  5. 5Why Java 8 ? 1 free preview3 lectures · 17 min
  6. 6Introduction to Lambda 1 free preview3 lectures · 24 min
  7. 7Lambdas and Functional Interfaces13 lectures · 1.6 hours
  8. 8Constructor and Method References 1 free preview5 lectures · 21 min
  9. 9Lambdas and Local variables ( Effectively Final )2 lectures · 8 min
  10. 10Streams API 1 free preview4 lectures · 29 min

Who it is for

The instructor says it suits

  • Anyone willing to learn the new Java Features like Lambdas, Streams, Parallel Programming, New Data Time Libraries and etc.,
  • Java developers who would like to take their knowledge to the next level to write more concise and readable code

What you need before you start

  • Students should have a basic knowledge about Java.
  • Students should have knowledge about IDE such as Eclipse, Intellij IDEA
  • At least Java 8 is needed for this course. Any Java version greater than Java 8 works too

How it compares

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

  • Rating4.5 out of 5higher than 53% of them
  • Reviews15,647#18 of 232 by number of reviews
  • Length15.8 hourslonger than 70% of them
  • Last updatedMarch 2026more recently than 76% of them

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Quality Score

Content Quality
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Video Quality
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Qualified Instructor
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Course Pace
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Course Depth & Coverage
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Overall Score : 90 / 100

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Course Description

[ Major Update : Complete Course updated on Oct 2025 ]

Learn the new Java 8, Java ll, Java 17, Java 21, Java 25 Features by coding it,This is a pure coding course and you will get a complete understanding of all the Java 8, Java ll, Java 17, Java 21,  Java 25 features by coding it

Why Should I take this course ?

  • This course will help the Java developers to build their knowledge on the new Java 8 features

  • All the new features such as Lambdas, Streams , Optionals, Functional Interfaces and Parallel Programming will be explained via code

  • This course will give you the confidence on implementing new Java 8 features in real Java projects

  • By the end of this course you will have a complete understanding of new Java 8 functional features

Course Overview :

Section 1 - Getting Started:

  • This section explains about what will be covered in this course

Section 2 - Why Java-8 ?:

  • This section covers Why Java 8 is important?

  • This section explains about difference between Imperative Programming and Declarative Programming

Section 3 - WorkSpace Setup - Mac/Windows:

  • This section covers the installation of Java and IntelliJ in Mac and Windows

Section 4: Introduction to Lambda

  • This section covers the Why Lambda is needed , Lambdas Syntax and How to implement Lambdas ?

  • Implement the Runnable interface using Lambdas

  • Implement the Comparator interface using Lambdas

Section 5: Lambdas and Functional Interfaces

  • This section covers the new Functional Interfaces that got introduced as part of Java 8

    • Consumer Functional Interface

    • Predicate Functional Interface

    • Function Functional Interface

    • Supplier Functional Interface

Section 6 : Constructor and Method References

  • This section covers the new Method Reference and the Constructor Reference

    • How Method Reference simplifies the code

    • How to use Method reference along with Lambdas

    • How to use Constructor Reference to create new objects

Section 7 : Lambdas and Local variables ( Effectively Final )

  • This section covers the local variable and how it should used in Lambdas

  • Definition of Effectively Final scope of a variable

Section 8 : Streams API

  • This section covers the Streams API which is one of the important feature that got introduced as part of Java8

  • How the Stream API Works Internally ?

  • How Collections are different from Streams ?

  • How to debug a Stream ?

Section 9 : Streams API Operations

  • This section covers different Streams API operations that can be used in Streams to achieve an objective

  • Streams Operations such as :

    • map()

    • flatMap()

    • distinct()

    • count()

    • filter()

    • reducer()

    • Map, Filter and Reduce pattern

    • max()

    • min()

    • limit()

    • skip()

    • allMatch(), anyMatch() and noneMatch()

    • findAny() and findFirst()

  • Explanation of Stream operations that are Short Circuit operations

Section 10 : Streams API - Factory Methods

  • This section covers different Streams API factory method that can be used to create Streams

Section 11: Numeric Streams

  • This section covers the Introduction to Numeric Streams which can be used to perform some numeric related operations

Section 12: Terminal Operations Streams

  • This section covers different way to collect the data from the Streams Pipeline

  • Terminal Operations such as :

    • joining()

    • counting()

    • mapping()

    • max(), min()

    • sum()

    • average()

    • groupingBy()

    • partitioningBy()

Section 13: Streams API - Parallel Processing

  • This section covers how to perform the Parallel processing using Streams

  • How Parallel Programming makes use of the processors in your machine to perform concurrency operations?

  • How Parallel Programming works internally ?

  • How to check the performance between the sequential and parallel programming ?

  • Scenarios when not to use parallel programming

Section 14: Optional

  • This section covers What is Optional and the benefits of Optional

  • How Optional can help you avoid Null Pointer exception

  • Exploring the different operations that are part of Optional such as :

    • empty()

    • ofNullable()

    • of()

    • orElse()

    • orElseGet()

    • orElseThrow()

    • isPresent()

    • ifPresent()

    • map()

    • flatMap()

    • filter()

Section 12: Streams API - Parallel Processing

  • This section covers how to perform the Parallel processing using Streams

  • How Parallel Programming makes use of the processors in your machine to perform concurrency operations?

  • How Parallel Programming works internally ?

  • How to check the performance between the sequential and parallel programming ?

  • Scenarios when not to use parallel programming

Section 13: Optional

  • This section covers What is Optional and the benefits of Optional

  • How Optional can help you avoid Null Pointer exception

  • Exploring the different operations that are part of Optional such as :

    • empty()

    • ofNullable()

    • of()

    • orElse()

    • orElseGet()

    • orElseThrow()

    • isPresent()

    • ifPresent()

    • map()
Read More All Levels All Levels product length iconTime: 15.8h

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Instructor Details

Pragmatic Code School

Pragmatic code school's primary goal is to provide technical training through a practical approach.

The courses are completely hands-on oriented and cover different techniques and patterns that are used in enterprise development standards

Each course explains the concepts by building applications which will give an experience of building a real enterprise application.

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COURSES ROADMAP:  |

-------------------------

Course roadmap to enroll in the Kafka Courses.

For Experienced Kafka Developers:

1. Apache Kafka for Developers using Spring Boot[LatestEdition]

2. Kafka Streams API For Developers using Java/SpringBoot 3.X

3. Kafka for Developers - Data Contracts using Schema Registry

For Kafka Beginners:

1. Apache Kafka for Beginners - Learn Kafka by Hands-On

2. Apache Kafka for Developers using Spring Boot[LatestEdition]

3. Kafka Streams API For Developers using Java/SpringBoot 3.X

4. Kafka for Developers - Data Contracts using Schema Registry


Course roadmap to enroll in the Modern Java Courses.

1. Modern Java - Learn Java 8 features by coding it

2. Multithreading,Parallel & Asynchronous Coding in Modern Java


Read More

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Reviews

4.5

15,647 ratings on Udemy

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

Write a review

By Alven Alinan on 9/3/2026

I had a great catch up of Java features since my last usage was way back Java 7 in 2015. There are some parts of the lecture where he did not explain what are the codes for. Overall, the course experience is fulfilling.

By Larry Earl Donald on 6/8/2026

Java is my favorite programming language and I always enjoy learning as much about it as I can and all the new features.

By Nijat Mehdiyev on 3/22/2026

I gave that rank because you explained Java 8 perfectly , but the why I cut the 1 star because of other explanation you not done deep diving you done just ready project and you explained based on ready version of project but Java 8 was excellent

By Kate Senehi on 2/21/2026

I like the many examples. Just by doing all of them you are getting the information pounded in. Also helpful that they are simple and not confused with other things. The only thing I would suggest is that some of the non-null vs null examples could be done with making the functions have an argument. That way it is easy to keep all of the examples without erasing them.

By Steve Corbett on 1/28/2026

Good information, presented in a logical order. I found the sections on Streams to be particularly helpful.

By Uma Sahu on 1/15/2026

A great content with a lot of examples. Would be even better if you provide real time examples and explaining how Streams API is helping (copmare to what it was before Java 8)

By Sergio Alberto Jaramillo Orozco on 1/14/2026

The examples meet the most important topic in the last few releases. I think the instructor was able to explain all in a good way. His English level is really nice and the concepts really were clear. Thanks!

By Daljeet Harsh on 1/1/2026

if you go through this complete tutorial then you do not need to go anywhere. most of the concept is covered here.

By Rahul Singh on 12/18/2025

This is the best and simplest tutorial on lambdas and streams. Thank you, sir, for the excellent tutorial.

By Steve Yeager on 10/30/2025

Lots of good details. some sections were so small, that the overhead of introducing, creating main class and execution overhead, and final comments were equally as long as the topic. Also, some topics were closely related to others, such as the date and time elements that had the same/similar functionality but were dragged out as if they were different concepts. that part dragged. but mostly, good content and lots of good information.

By Sagar Mane on 12/20/2020

In detailed videos

By Maynor Moreno on 12/20/2020

So far so good

Showing 12 of 275 reviews

Modern Java: Mastering Features from Java 8 to Java 25
Visit course on Udemy Write a review
  • Video Duration: icon 15.8h
  • Price: $12.99
  • Provider: icon Udemy
  • Updated: icon March 2026
  • Level: All Levels All Levels
  • Language: icon English
  • Certificate: icon Yes
  • Lectures:147 in 33 sections
  • Students:74,800
  • Subtitles:10 languages
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