Kotlin: Write Expressive Code with Operators and Extensions — PickAClass
⏱ 2h 48m 📚 28 lessons 🎧 Audio version

Kotlin: Write Expressive Code with Operators and Extensions

Transform your Kotlin coding style by learning how operator overloading, extension functions, and lambdas enable you to write more intuitive and maintainable code.

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About this course

Kotlin offers powerful features to make your code not just functional, but also a joy to read and write. Are you ready to elevate your coding style and build more intuitive APIs? This course will guide you through Kotlin's unique capabilities, such as operator overloading, extension functions, and lambdas, enabling you to write concise, expressive, and highly readable code that adheres to modern Kotlin best practices. What you'll learn: * Understand the core concepts of operator overloading and its practical applications in Kotlin. * Apply extension functions to add new behaviors to existing classes without modification. * Implement infix notation and higher-order functions to create more readable and DSL-like code. * Practice writing idiomatic Kotlin code that is concise, clear, and maintainable. * Learn how to effectively use lambdas and functional interfaces to simplify complex operations. * Configure custom operators and extensions while adhering to best practices for clarity and avoiding pitfalls. The course begins with foundational concepts of operator overloading and extension functions, progressing to more advanced topics like infix notation, lambdas, and practical application patterns. You will explore how these features combine to create highly expressive and maintainable Kotlin code. This course is designed for absolute beginners to Kotlin programming, with no prior experience required. It is also suitable for developers familiar with other languages who are new to Kotlin's unique expressive features. Start your journey to writing elegant and efficient Kotlin code today.

Course contents

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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has successfully demonstrated mastery of
Kotlin: Write Expressive Code with Operators and Extensions
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1.4 hrs
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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
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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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