## Relevant articles: - [Introduction to the Kotlin Language](http://www.baeldung.com/kotlin) - [A guide to the “when{}” block in Kotlin](http://www.baeldung.com/kotlin-when) - [Comprehensive Guide to Null Safety in Kotlin](http://www.baeldung.com/kotlin-null-safety) - [Kotlin Java Interoperability](http://www.baeldung.com/kotlin-java-interoperability) - [Difference Between “==” and “===” in Kotlin](http://www.baeldung.com/kotlin-equality-operators) - [Generics in Kotlin](http://www.baeldung.com/kotlin-generics) - [Introduction to Kotlin Coroutines](http://www.baeldung.com/kotlin-coroutines) - [Destructuring Declarations in Kotlin](http://www.baeldung.com/kotlin-destructuring-declarations) - [Lazy Initialization in Kotlin](http://www.baeldung.com/kotlin-lazy-initialization) - [Overview of Kotlin Collections API](http://www.baeldung.com/kotlin-collections-api) - [Converting a List to Map in Kotlin](http://www.baeldung.com/kotlin-list-to-map) - [Data Classes in Kotlin](http://www.baeldung.com/kotlin-data-classes) - [Delegated Properties in Kotlin](http://www.baeldung.com/kotlin-delegated-properties) - [Sealed Classes in Kotlin](http://www.baeldung.com/kotlin-sealed-classes) - [JUnit 5 for Kotlin Developers](http://www.baeldung.com/junit-5-kotlin) - [Extension Methods in Kotlin](http://www.baeldung.com/kotlin-extension-methods) - [Infix Functions in Kotlin](http://www.baeldung.com/kotlin-infix-functions) - [Try-with-resources in Kotlin](http://www.baeldung.com/kotlin-try-with-resources) - [Regular Expressions in Kotlin](http://www.baeldung.com/kotlin-regular-expressions) - [Objects in Kotlin](http://www.baeldung.com/kotlin-objects) - [Reading from a File in Kotlin](http://www.baeldung.com/kotlin-read-file) - [Guide to Kotlin @JvmField](http://www.baeldung.com/kotlin-jvm-field-annotation) - [Filtering Kotlin Collections](http://www.baeldung.com/kotlin-filter-collection) - [Writing to a File in Kotlin](http://www.baeldung.com/kotlin-write-file) - [Lambda Expressions in Kotlin](http://www.baeldung.com/kotlin-lambda-expressions) - [Kotlin String Templates](http://www.baeldung.com/kotlin-string-template) - [Working with Enums in Kotlin](http://www.baeldung.com/kotlin-enum) - [Create a Java and Kotlin Project with Maven](http://www.baeldung.com/kotlin-maven-java-project) - [Reflection with Kotlin](http://www.baeldung.com/kotlin-reflection) - [Get a Random Number in Kotlin](http://www.baeldung.com/kotlin-random-number) - [Idiomatic Logging in Kotlin](http://www.baeldung.com/kotlin-logging) - [Kotlin Constructors](https://www.baeldung.com/kotlin-constructors) - [Creational Design Patterns in Kotlin: Builder](https://www.baeldung.com/kotlin-builder-pattern) - [Kotlin Nested and Inner Classes](https://www.baeldung.com/kotlin-inner-classes) - [Kotlin with Ktor](https://www.baeldung.com/kotlin-ktor) - [Fuel HTTP Library with Kotlin](https://www.baeldung.com/kotlin-fuel) - [Introduction to Kovenant Library for Kotlin](https://www.baeldung.com/kotlin-kovenant) - [Converting Kotlin Data Class from JSON using GSON](https://www.baeldung.com/kotlin-json-convert-data-class) - [Concatenate Strings in Kotlin](https://www.baeldung.com/kotlin-concatenate-strings)