Data Structures in Java Course
This hands-on course guides you through building a high-performance in-memory store in Java, covering data structures, concurrency, optimization, and testing.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
Master key data structures in Java by creating a high-performance in-memory store from the ground up. Learn to model products and orders, design clean APIs, use HashMap-based indexes, and select 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 lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of interest without needing to change platforms... I thank you for everything you do, I've already recommended you to other people...

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

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The platform is fast, simple to use. The diversity of content and complementary videos really help with learning.

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