Java Performance and Data Structures

Learn to select and implement the right data structures to build fast, scalable Java applications that handle real-world data efficiently.

4.8 (2,250) ⏱ 49 min 📚 4 lessons 🎧 Audio version

About this course

Software that works with a handful of examples often fails when faced with thousands of real-world records. Understanding how to manage data efficiently is what separates a basic coder from a professional developer. This course teaches you how to evaluate code performance and choose the most effective data structures for any task. You will move beyond basic syntax to understand the underlying mechanics of how Java handles information at scale. What you'll learn: - Understand Big O notation to analyze and predict code efficiency - Compare and implement core Java collections including Lists, Sets, and Maps - Use modern Java Records and the Streams API for efficient data transformation - Apply basic benchmarking techniques to measure execution time accurately - Identify performance bottlenecks in common algorithms - Balance memory consumption with processing speed for optimal results The curriculum starts with foundational definitions of complexity and performance measurement before diving into the practical application of the Java Collections Framework. You will read through written explanations and apply your knowledge through text-based exercises. This course is designed for beginners; no previous experience with data structures or performance optimization is required. Start writing faster, more efficient Java code today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 30-day refund
    No questions asked
  • Short & focused
    49 min of practical content

Reviews (2)

عائشة بنت سعد SA Verified learner
★ 3 · 2026-03-22T05:56:00+00:00

Learned a good amount here. The examples were relevant, though I wished there were a few more practical application tasks. Still, a worthwhile experience.

Emilia Koch CH Verified learner
★ 5 · 2026-02-23T11:40:00+00:00

Couldn't have asked for a better learning experience. The structure flowed perfectly, and the examples were incredibly relevant. Highly recommend!

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

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By card via Stripe, or with cryptocurrency. We do not store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 30 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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