Learn everything about Kotlin.

You probably know already: Kotlin is one of the most powerful language on the JVM, increasing in popularity, with solid support for backend, mobile, web and multiplatform in the same project. It’s taken the most powerful features from other languages while avoiding their pitfalls. The company behind Kotlin (JetBrains) has executed beautifully.

Kotlin has a bright future.

Therefore, so do you.

This bundle contains everything you need to master Kotlin from scratch, even if you have never written a line of Kotlin in your life.

After completing this Kotlin masterclass, you’ll be equipped to:

Understand and work with Kotlin in any codebase, of any complexity
Develop advanced tools for other developers or libraries as open-source projects
Lead other developers on Kotlin best practice
Understand existing Kotlin libraries and tools like a boss
Be effective while working with parallel applications
Work on any platform that Kotlin compiles for, including Android, multiplatform, desktop, server or the web

Kotlin features we cover in this masterclass:

Lasting comfort with the Kotlin language
- syntax (of course)
- types and type inference
- expressions vs instructions
- control structures and how they differ from other languages
- string templating
Extended object-oriented concepts
- classes, instances, constructors, properties, methods, the usual
- nullables
- new method notations for expressive code
- extension methods
- operator overloading
- the singleton pattern in one line of code
- inheritance
- abstract classes and interfaces
- generics
- exception handling
- delegation
- anonymous classes
- value classes
- enums
Functional programming
- using functions as values
- anonymous functions (lambdas)
- higher-order functions
- collections and their “standard” and functional APIs
- single-abstract-method patterns (SAM)
Kotlin type system mastery
- OOP and FP
- Delegation and delegated properties
- Standard delegated properties
- Variance and variance positions
Kotlin internals proficiency
- Contracts and compiler type checks
- Inline functions and performance optimization
- Circumventing JVM type erasure
- Reified types
- Reflection
- Creating code generators and analyzers
- Writing symbol processors
Coroutines
- Suspending functions
- Coroutine builders
- Structured concurrency
- Cancellation
- Error handling
- Cooperative scheduling
- Configuring coroutine platforms
Advanced coroutine tools
- Flows
- Channels
- Testing & manipulating time

Basically, everything you’ll ever need to know to be a Kotlin master.

Additional perks:

Full access to all the code written during the courses — over 6000 lines of Kotlin!
Invitation to join a private Slack community, where you’ll get exclusive updates, opportunities, and discussions
Access to all slides for easy reference
Free updates and expansions, no expiration date

Daniel Ciocîrlan

I'm a software engineer and the founder of Rock the JVM.

I'm a software engineer and the founder of Rock the JVM. I started the Rock the JVM project out of love for Scala and the technologies it powers - they are all amazing tools and I want to share as much of my experience with them as I can.

As of February 2024, I've taught Java, Scala, Kotlin and related tech (e.g. Cats, ZIO, Spark) to 100000+ students at various levels and I've held live training sessions for some of the best companies in the industry, including Adobe and Apple. I've also taught university students who now work at Google and Facebook (among others), I've held Hour of Code for 7-year-olds and I've taught more than 35000 kids to code.

I have a Master's Degree in Computer Science and I wrote my Bachelor and Master theses on Quantum Computation. Before starting to learn programming, I won medals at international Physics competitions.

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