Kotlin Tutorial

Kotlin Tutorial

This Kotlin Tutorial has been prepared by well experienced Kotlin Programmers for the beginners to help them understand the basics of Kotlin Programming Language. After completing this tutorial, you will find yourself at a moderate level of expertise in Kotlin, from where you can take yourself to the next levels.

What is Kotlin?

Kotlin is a programming language introduced by JetBrains in 2011, the official designer of the most intelligent Java IDE, named Intellij IDEA. Kotlin is free, has been free and will remain free. It is developed under the Apache 2.0 license and the source code is available on GitHub.

This is a strongly statically typed general-purpose programming language that runs on JVM. In 2017, Google announced Kotlin is an official language for android development. Kotlin is an open source programming language that combines object-oriented programming and functional features into a unique platform. The content is divided into various chapters that contain related topics with simple and useful examples.

Kotlin is a modern programming language that makes developers happier. Kotlin is easy to pick up, so you can create powerful applications immediately.

Currently, Kotlin mainly targets the Java Virtual Machine (JVM), but also compiles to JavaScript. Kotlin is influenced by other popular programming languages such as Java, C#, JavaScript, Scala and Groovy. The syntax of Kotlin may not be exactly similar to Java Programming Language, however, internally Kotlin is reliant on the existing Java Class library to produce wonderful results for the programmers. Kotlin provides interoperability, code safety, and clarity to the developers around the world.

Kotlin Jobs

Kotlin is very high in demand and all major companies are moving towards Kotlin to develop their web and mobile applications.

Average annual salary for a Kotlin developer is around $130,000. Though it can vary depending on the location. Following are the great companies who are using Kotlin:

  • Google

  • Amazon

  • Netflix

  • Pinterest

  • Uber

  • Trello

  • Coursera

  • Basecamp

  • Corda

  • JetBrains

  • Many more...

So, you could be the next potential employee for any of these major companies. We have develop a great learning material for Kotlin which will help you to prepare for the technical interviews and certification exams based on Kotlin. So, start learning Kotlin using our simple and effective tutorial anywhere and anytime absolutely at your pace.

Kotlin Online Compiler

We have provided Kotlin Online Compiler which helps you to Edit and Execute the code directly from your browser. Try to click the icon run button to run the following Kotlin code to print conventional "Hello, World!".

Below code box allows you to change the value of the code. Try to change the value of string variable and run it again to verify the result.
fun main() {
   var string: String  = "Hello, World!"  // defining a variable

Quizzes & Assignments

This Kotlin tutorial helps you prepare for technical interviews and certification exams. We have provided various quizzes and assignments to check your learning level. Given quizzes have multiple choice type of questions and their answers with short explanation.

Following is a sample quiz, try to attempt any of the given answers:

Q 1 - Kotlin has been developed based on the following programming language?

A - Python

B - Scala

C - Java

D - None of the Above

Answer : C


Kotlin is 100% compatible with Java.

Audience of Kotlin

This tutorial has been prepared for the beginners to help them understand the basics of Kotlin programming language. After completing this tutorial, you will find yourself at a moderate level of expertise in Kotlin, from where you can take yourself to the next levels.

Prerequisites to Learn Kotlin

Before proceeding with this tutorial you should have a basic understanding of Java programming language. Although it is a beginners tutorial, we assume that the readers have a reasonable exposure to any programming environment and knowledge of basic concepts such as variables, commands, syntax, etc. We strongly recommend that you gain some basic knowledge of Java programming language before proceeding with Kotlin programming.

Kotlin Questions & Answers

You can explore a set of Kotlin Questions and Answers at Kotlin Questions & Answers