Learn Kotlin: Introduction

Learn Kotlin — the modern, concise and safe programming language — through this succint articles series.

A ship heading to Kotlin Island — Photo by Egor on Unsplash

Why Kotlin.


Sample POJO class
Sample singleton class


null can not be assigned to a non-nullable variable
Kotlin won’t let you mistakenly operating nullable variables


— Learn Kotlin Series —

Android Developer. Currently residing in Jambi, Indonesia. https://romnan.my.id