Kotlin tutorials

55 tutorials. Language basics for Android and JVM developers.

All Kotlin tutorials

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Kotlin Using Gson library with Kotlin class and data class instances Learn how to use Gson to serialize and deserialize Kotlin class instances into JSON format Dec 27, 2021 Kotlin Kotlin lambda explained with code examples Learn what are Kotlin lambda expressions with practical code examples Dec 24, 2021 Kotlin Kotlin generics explained with code examples Learn what and how Kotlin generics work with practical examples Dec 19, 2021 Kotlin Kotlin companion object explained with examples Learn what is a Kotlin companion object and how to use it Dec 18, 2021 Kotlin Kotlin data class explained with easy to understand examples Learn how Kotlin data class works and when to use it Dec 17, 2021 Kotlin Kotlin alternative to the Java Optional type Let's learn about Kotlin alternative to Java Optional type Dec 16, 2021 Kotlin How to create a HashMap in Kotlin Let's learn how to create a HashMap type instance in Kotlin Dec 15, 2021 Kotlin How to create Kotlin static function or method Let's learn how to define Kotlin static function or method Dec 10, 2021 Kotlin Kotlin switch statement alternative Let's learn about the Kotlin switch statement alternative in this tutorial Dec 9, 2021 Kotlin Kotlin uses of question mark explained Let's learn about the use of question mark for null safety in Kotlin Dec 8, 2021 Kotlin Kotlin main method explained Let's learn about Kotlin main method and its role in Kotlin application Dec 7, 2021 Kotlin Kotlin file extension explained - .kt, .kts, .ktm Let's learn about Kotlin file extensions and their use Dec 6, 2021 Kotlin How to create Kotlin constants and static values Learn the best way to write constant values in Kotlin Dec 3, 2021 Kotlin Kotlin reduce method explained Learn how the Kotlin reduce method allows you to iterate over a collection Dec 2, 2021 Kotlin The Kotlin secondary constructor tutorial Learn how the Kotlin class secondary constructor works through practical examples Dec 1, 2021 Kotlin The Kotlin constructor explained with examples Learn how the Kotlin class constructor works through practical examples Nov 30, 2021 Kotlin How to fix unresolved reference issue in Kotlin and Android Studio Learn how to fix unresolved reference issue in Kotlin and Android Studio Nov 29, 2021 Kotlin How to create enum constants in Kotlin Learn how to create modern enum constants in Kotlin Nov 23, 2021 Kotlin How to use Kotlin Regex Learn how to use the Kotlin Regex class to find or replace matches Nov 22, 2021 Kotlin The Kotlin varargs function parameter explained (with code examples) Learn how Kotlin varargs function parameter works with practical examples Nov 16, 2021