Data Structures and Algorithms in Java Course
Master data structures and algorithms in Java by building real-world collections, top-k analytics, and time-windowed logs. Learn to profile, benchmark, and optimise code for performance-critical systems used in modern tech products. This hands-on course emphasises practical skills for efficient Java programming in production environments.

from 4 to 360h flexible workload
certificate valid in your country
What will I learn?
Master core data structures and algorithms in Java through a practical, hands-on course that emphasises real-world application over mere theory. Design and build hash-based maps, efficient top-k queries, and time-windowed action logs. Gain insights into complexity analysis, memory management, and basic concurrency. Hone skills in microbenchmarking, profiling, unit testing, and producing clean, documented, reusable production-ready code.
Elevify advantages
Develop skills
- Java performance tuning: benchmark, profile, and optimise real data structures.
- Custom hash maps in Java: design, implement, and tune for speed and memory.
- Streaming top-k analytics: build fast, scalable user ranking algorithms in Java.
- Time-windowed storage: implement sliding-window Action logs with O(1) ops.
- Production-ready Java collections: test, document, and package high-quality APIs.
Suggested summary
Before starting, you can change the chapters and 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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