KotlinLab: Samples and Exercises

This repo contains a bunch of basic examples useful to take first steps on Kotlin Programming Language and its features.

It contains:

1. Hello World
2. basics: variables, loops, ranges;
3. functions: how use Kotlin Functions
4. classes: Kotlin classes, Java class VS Kotlin class
5. dataClasses: how to use data classes
6. lambdas: how use lambdas in Kotlin
7. nullableTypes: how Kotlin handle null variables
8. exercises: a bunch of simple exercises

Setup ⚙️

You need to install Kotlin and the IntelliJ platform:

• JetBrains IntelliJ IDEA Community: https://www.jetbrains.com/idea/download/
• Getting Started with Kotlin: https://kotlinlang.org/docs/tutorials/getting-started.html
• import this repo (do not use 'Open', use 'import project' instead)

Learn 📚

• Docs: https://kotlinlang.org/docs/reference/
• Docs pdf version : https://kotlinlang.org/docs/kotlin-docs.pdf
• Free Udacity lessons: https://classroom.udacity.com/courses/ud9011/
• Kotlin in action paper book and e-book: https://www.manning.com/books/kotlin-in-action

Have Fun 🎉

Usage

You can run the examples in two ways: copy and paste each functions inside REPL or directly running main functions.

REPL

• Press Shift twice inside IntelliJ and type "Kotlin REPL":

• write your code inside the console then press Ctrl + Enter :

play main functions

Should You have imported well this project, you can find a little green "play" icon on the left of each main function. Press that button to run main function

Other Samples

• Try Kotlin: https://try.kotlinlang.org
• Kotlin Koans: https://kotlinlang.org/docs/tutorials/koans.html
• Kotlin Koans using EduTools: https://kotlinlang.org/docs/tutorials/edu-tools-learner.html
• Exercism: https://github.com/exercism/kotlin