Learn Kotlin
Learn to build runnable Kotlin programs and core language skills
Learn Kotlin is a concise, hands‑on introduction to the Kotlin programming language offered by Codecademy that emphasizes practical, project‑driven learning. It pairs interactive lessons with guided projects to teach core concepts such as syntax, control flow, collections, and object‑oriented design.
The course highlights Kotlin’s safety features and expressive syntax, making it relevant for learners interested in Android development or general‑purpose programming. Students focused on building runnable programs will find the exercises and projects useful for turning conceptual knowledge into demonstrable coding skills.
At a Glance
Learn Kotlin is a free introductory course that teaches the fundamentals of Kotlin, a concise, modern programming language widely used for Android and general-purpose development.
The course is produced by Codecademy’s curriculum team and covers core syntax, control flow, collections, object-oriented concepts, and hands-on projects to build practical skills.
| Level | Beginner |
| Rating | 4.5 out of 5 |
| Duration | 8+ hours |
| Languages | English |
| Learners | 50K+ learners |
| Certificate | Certificate of completion (paid plan required) |
| Access | Free access to core course content; additional features and the certificate require an active subscription |
| Course includes |
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| Price | Free to access course content; certificate and extra features require a paid subscription |
What This Course Teaches
The course frames outcomes as measurable competencies focused on practical Kotlin development, including writing programs, implementing object-oriented designs, and applying language safety features in working projects. Learners should be able to build functioning Kotlin programs, implement classes and objects, explain and apply Kotlin’s null-safety and type-safety features, and develop guided projects that demonstrate those skills.
How the Course Is Structured
The course is presented as a compact sequence of lessons and projects, organized for stepwise skill building across core Kotlin topics; the syllabus lists multiple lessons alongside several hands‑on projects and quizzes. Overall, learners can expect a short, focused course of roughly 9 hours spread across the available lessons and projects.
Curriculum overview
01 Introduction to Kotlin ▾
Get started with Kotlin and create your first basic program, covering setup and introductory syntax.
02 Data Types & Variables ▾
Learn about variables and the primary data types supported in Kotlin, and how to use them effectively.
03 Conditional Expressions ▾
Understand and apply conditional logic to control program flow using Kotlin’s conditional expressions.
04 Collections ▾
Explore Kotlin collections such as lists, sets, and maps, and learn common operations for each type.
05 Loops ▾
Practice repetition patterns in Kotlin, implementing loops to process collections and control repeated behavior.
06 Functions ▾
Create and invoke user-defined functions to encapsulate logic and structure Kotlin programs.
07 Classes ▾
Get an introduction to object-oriented programming in Kotlin by defining classes and creating objects.
Audience & Requirements
Learn Kotlin targets learners who want a practical, hands‑on introduction to Kotlin for Android and general-purpose programming. It is designed for beginners and early-stage developers who want to build small projects and gain confidence with Kotlin’s syntax and core features.
- Complete beginners learning programming with Kotlin.
- Aspiring Android developers seeking a Kotlin foundation.
- Students and hobbyists building small Kotlin projects.
- Developers wanting a concise, practical Kotlin refresher.
- No prior Kotlin experience; the course is beginner‑level.
- An environment to run Kotlin code (IntelliJ IDEA recommended or the online Kotlin playground).
- Willingness to complete interactive exercises and guided projects.
Final Verdict
Learn Kotlin is a concise, hands‑on introduction that delivers practical skill gains and portfolio projects, making it a cost‑effective choice for beginners and those refreshing core language skills.
Given its strong user rating and wide enrollment, the course is a reliable first step into Kotlin development and a practical way to build working experience quickly. If you require an official certificate or deep Android specialization, plan to upgrade to the platform’s paid features or follow this course with more advanced training; otherwise, it is well worth taking as a foundational, low‑risk learning option.
