Data Structures in Java Course
Master core data structures in Java by building a high-performance in-memory store. Learn collections, indexing, concurrency, atomic updates, and complexity so you can design scalable, thread-safe systems used in real-world tech environments.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Master core data structures in Java by building a high-performance in-memory store from scratch. Learn to model products and orders, design clean APIs, use HashMap-based indexes, and choose optimal collections for lookups and history. Practice concurrency with atomic counters, locks, and transactional updates, then validate your work with benchmarks, profiling, and solid unit and integration tests in a compact, hands-on course.
Elevify advantages
Develop skills
- Design concurrent Java data structures: build fast, thread-safe in-memory stores.
- Implement Java indexes: HashMap and secondary indexes for instant lookups.
- Optimize APIs with Big-O insight: document and tune time and space complexity.
- Build transactional flows in memory: validate orders, update stock, ensure consistency.
- Benchmark and test Java stores: JMH profiling, unit and concurrency testing.
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 workload.What our students say
Your classes 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... thank you for everything you do, 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
I like the content and the way the videos are presented and transcribed, which speeds up the process!

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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