Java OOP Fundamentals: Classes and Objects — PickAClass
3.7 (3) ⏱ 2h 48m 📚 28 lessons 🎧 Audio version

Java OOP Fundamentals: Classes and Objects

Master the core principles of object-oriented design and memory management to build a solid foundation for your Java programming journey.

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About this course

Transitioning from writing simple scripts to building structured applications requires a deep understanding of how Java handles data and behavior. This course demystifies the core mechanics of object-oriented programming, explaining exactly what happens behind the scenes when your code runs. You will move beyond just writing code to understanding the architectural logic of Java, enabling you to design efficient, scalable, and maintainable software. Through clear written explanations and practical code examples, you will achieve the following: * Understand the fundamental distinction between classes and objects. * Apply inheritance and polymorphism to create flexible and reusable code structures. * Master memory management concepts by exploring the roles of the Stack and the Heap. * Implement interfaces and abstract classes to define clear application contracts. * Use modern Java records to simplify data-centric object definitions and improve code readability. * Practice debugging logic and writing clean, structured methods with loops and conditionals. The course begins with essential terminology and the conceptual foundation of objects before moving into the core pillars of object-oriented design. You will explore how objects interact in a program and how to organize your logic according to modern industry standards. This course is designed for absolute beginners with no prior programming experience, as well as those who have written basic Java code but want to truly understand the underlying mechanics of the language. No prerequisites are required. Start building your Java expertise by mastering the foundations of object-oriented design today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 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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Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Java OOP Fundamentals: Classes and Objects
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
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PickAClass — Name Surname
Java OOP Fundamentals: Classes and Objects
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 (3)

Gladys Mensah GH
★ 4 · July 16, 2026

It's a good course if you have some prior knowledge. For absolute beginners, some concepts might be a bit challenging. The structure is logical, though.

إبراهيم منصور EG Verified learner
★ 4 · July 14, 2026

Fantastic resource. I learned so much, and the examples used were super helpful in understanding the concepts. Highly recommend.

Mészáros András HU
★ 3 · June 9, 2026

Hmm, I'm not sure this is for absolute beginners. It assumes a bit of prior knowledge that wasn't explicitly taught. Some examples were confusing.

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

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

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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.

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

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