Foundations of Object-Oriented Programming in Java — PickAClass
4.5 (2) ⏱ 2h 48m 📚 28 lessons 🎧 Audio version

Foundations of Object-Oriented Programming in Java

Learn to model real-world systems using classes, inheritance, and polymorphism in Java, building a strong foundation for modern software development.

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About this course

Writing clean, organized, and scalable software is a fundamental skill for any aspiring developer. Object-oriented programming (OOP) is the industry standard for structuring complex applications, and Java is the perfect language to learn these core concepts. This text-based course guides you from writing basic code to designing robust, modular Java applications. You will learn how to translate real-world problems into structured software components, ensuring your code is reusable, secure, and easy to maintain. What you'll learn: - Understand foundational OOP concepts, key terminology, and how Java executes object-oriented code. - Create classes and instantiate objects to model real-world entities with constructors and custom methods. - Apply encapsulation to secure data and control access using visibility modifiers. - Implement inheritance and abstract classes to reduce code duplication and establish clear hierarchies. - Leverage polymorphism and interfaces to write flexible, adaptable, and highly maintainable systems. - Utilize modern Java features like records for clean data modeling and local variable type inference to write concise code. You will start with the basic vocabulary of object-oriented design before progressing through core pillars like inheritance and polymorphism, reinforcing your understanding through written code analysis and practical exercises. This course is designed for absolute beginners to OOP and Java, requiring no prior experience with object-oriented design. We begin with the absolute basics and build up your skills step-by-step. Start reading today to build a solid foundation in object-oriented software development.

What you'll get

  • 📜 Certificate of completion
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  • 💬 Personal AI tutor
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  • 🎧 Audio version included
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    2h 48m 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.

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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Foundations of Object-Oriented Programming in Java
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
Foundations of Object-Oriented Programming in Java
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.

Reviews (2)

Wegayehu Fasika ET
★ 5 · July 22, 2026

This course exceeded my expectations. The real-world applications discussed are incredibly useful. Great job!

Ilona Savolainen FI
★ 4 · May 31, 2026

This was a good introduction. The structure is logical, and it covers the basics effectively. Might be too introductory for advanced learners.

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

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Yes — full refund within 14 days, no questions asked.

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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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