Kt. Academy

Part 1: Advanced Kotlin features

Generic variance modifiers

Exercise: Usage of generic types

The Covariant Nothing Object

Variance modifier limitations

Exercise: Generic Response

Exercise: Generic Consumer

Interface delegation

Exercise: ApplicationScope

Property delegation

Exercise: Lateinit delegate

The lazy delegate

Exercise: Blog Post Properties

The observable delegate

A map as a delegate

Exercise: Mutable lazy delegate

Kotlin Contracts

Exercise: Coroutine time measurement

Part 2: Kotlin on different platforms

Java interoperability

Annotation targets

Exercise: Adjust Kotlin for Java usage

Using Kotlin Multiplatform

Multiplatform libraries

A multiplatform mobile application

Exercise: Multiplatform LocalDateTime

JavaScript interoperability

Exercise: Migrating a Kotlin/JVM project to KMP

Part 3: Metaprogramming

Class reference

Referencing types

Exercise: Function caller

Exercise: Object serialization to JSON

Exercise: Object serialization to XML

Exercise: DSL-based dependency injection library

Exercise: Mocking library

Annotation processing

Exercise: Annotation Processing execution measurement wrapper

Kotlin Symbol Processing

Exercise: KSP execution measurement wrapper

Kotlin Compiler Plugins

Static Code Analysers