Java Streams Course
This course teaches Java Streams for efficient data processing, covering creation, operations, collectors, refactoring, performance, and testing.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
Master modern data processing with this concise Java Streams Course. Learn core stream creation, filtering, mapping, and reduction, then move into advanced collectors for grouping, partitioning, and summarizing. Practice sorting, pagination, and complex queries, refactor legacy loops into clean pipelines, and understand collections and immutability. Finish with testing, debugging, profiling, and parallel stream performance tuning for reliable, efficient code.
Elevify advantages
Develop skills
- Master Java Streams: build clean, fluent pipelines for real-world data.
- Refactor legacy loops: replace nested iterations with concise stream code.
- Optimize performance: use parallel streams, JMH, and primitive streams safely.
- Aggregate with collectors: grouping, partitioning, and custom collector design.
- Test stream logic: JUnit, AssertJ, and IDE tools for fast, reliable debugging.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workloadWhat our students say
Your lessons are perfect. I got the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... I appreciate everything you do, and I've already recommended you to others...

Giulio CarloDigital Marketing Student
I like how the lessons get straight to the point and how I can switch chapters and skip content I don't need.

Mariana FerresPhotography Student
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Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the extra videos really help with learning.

Giulio CarloPrompt Engineering Student
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