Kotlin is a modern programming language that compiles to Java bytecode. It is free and open source, and promises to make coding for Android even more fun.
Kotlin is 100% interoperable with Java. In other words, it can be used together with Java in the same project. So you can refactor parts of your Java code to Kotlin and it won't break. In addition to that, it is concise, expressive, and has great tooling. Kotlin can be used on the back-end (server-side), but it's getting a lot of attention right now as a language for Android app development. Kotlin is now supported by Google as a first-class language for Android development, so the popularity of Kotlin is set to explode!
In this first tutorial in the Kotlin From Scratch series, you'll learn about the language fundamentals: everything from variables to lambda functions and object-orientation.
Kotlin From Scratch: Variables, Basic Types, and Arrays
Kotlin From Scratch: Nullability, Loops, and Conditions
Kotlin From Scratch: Ranges and Collections
Kotlin From Scratch: Packages and Basic Functions
Kotlin From Scratch: More Fun With Functions
Kotlin From Scratch: Advanced Functions
Kotlin From Scratch: Classes and Objects
Kotlin From Scratch: Advanced Properties and Classes
Kotlin From Scratch: Abstract Classes, Interfaces, Inheritance, and Type Alias
Kotlin From Scratch: Exception Handling
