Java Programming II: Advanced OOP, Collections, and Concurrency — PickAClass
⏱ 2h 30m 📚 25 lessons 🎧 Audio version

Java Programming II: Advanced OOP, Collections, and Concurrency

Expand your Java skills by mastering object-oriented design, generic collections, modern file handling, and multi-threaded applications through structured reading.

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  • 🌐 In English
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About this course

Ready to take your Java skills beyond basic syntax and build robust, production-ready applications? Moving from writing simple scripts to designing scalable software requires a deep understanding of how Java manages data, files, and concurrent tasks. This text-based course helps you transition from a beginner to a confident intermediate Java developer, learning how to structure complex programs, leverage powerful built-in data structures, and handle asynchronous processes safely. What you'll learn: - Understand intermediate object-oriented principles, including inheritance, polymorphism, and abstract classes. - Master collections and generics to write reusable, type-safe, and highly efficient code. - Implement file I/O operations, object serialization, and database connections to persist application data. - Apply multi-threading and modern concurrency patterns to build responsive, non-blocking applications. - Explore modern Java features such as records, switch expressions, and stream APIs for cleaner code. - Practice designing clean graphical user interfaces and handling events programmatically. The course begins with a solid review of core object-oriented concepts before diving into advanced data structures, concurrency, and database integration. You will read clear explanations, analyze structured code snippets, and complete written exercises designed to reinforce your learning. This course is designed for advancing beginners who already know basic Java syntax and want to level up their software development skills. Start reading today to unlock the full potential of intermediate Java programming.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 14-day refund
    No questions asked
  • Short & focused
    2h 30m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

P
PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Java Programming II: Advanced OOP, Collections, and Concurrency
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
Java Programming II: Advanced OOP, Collections, and Concurrency
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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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.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 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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