Object-Oriented Programming in Ruby: State and Behavior — PickAClass
⏱ 3h 📚 30 lessons

Object-Oriented Programming in Ruby: State and Behavior

Master the core mechanics of Ruby classes, instance variables, and methods to write clean, maintainable, and secure object-oriented code.

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About this course

When learning Ruby, writing clean and structured code depends on mastering how objects store data and perform actions. This text-based course guides you through the fundamental principles of Object-Oriented Programming (OOP) in Ruby, showing you how to organize your logic effectively. You will learn how to design robust classes that keep data secure and code easy to maintain. By reading through clear explanations and analyzing practical code examples, you will transform your understanding of how Ruby manages data internally. You will gain the confidence to construct real-world objects, manage their lifecycles, and control how different parts of your application interact. What you'll learn: - Understand the foundational concepts of Ruby classes, objects, and the OOP paradigm - Manage object state securely using instance variables and initialization methods - Define object behavior by writing clear instance and class methods - Control data access using getter, setter, and modern attribute accessor methods - Apply encapsulation principles to protect internal object data from unauthorized external modification - Write clean, modern Ruby code adhering to current style guides and naming conventions This course begins with essential definitions and foundational concepts of object-oriented design before guiding you step-by-step through practical class implementation. You will explore how state and behavior work together, finishing with best practices for structuring your Ruby files. This course is designed for beginner Ruby developers and programmers transitioning from procedural languages who want a solid foundation in object-oriented design. No prior experience with Ruby classes is required. Start reading today to build a strong foundation in Ruby object-oriented programming.

Course contents

What you'll get

  • 📜 Certificate of completion
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  • 💬 Personal AI tutor
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  • 📱 Phone or computer
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  • ⚡ Short & focused
    3h 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
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Object-Oriented Programming in Ruby: State and Behavior
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
Object-Oriented Programming in Ruby: State and Behavior
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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