Kotlin Programming

Kotlin Programming

Kotlin is a relatively new programming language developed by JetBrains for modern multiplatform applications. Nowadays, Kotlin is widely used for Android development instead of Java. It is because Kotlin is safe, concise, and fun to read and write.

To get started with Kotlin programming, visit our Kotlin Tutorials.


Features of Kotlin Programming

Open Source

Kotlin is distributed under Apache License, Version 2.0. The Kompiler (Kotlin compiler), IntelliJ IDEA plugin, enhancements to basic Java libraries and build tools all are open source.

Interoperable with Java and Android

It is 100% interoperable with Java and Android. This means all your current Java/Android code works seamlessly with Kotlin. For more information, visit Mixing Java and Kotlin in One Project.

Concise and Expressive

Rough estimation indicates that using Kotlin allows you to cut off the lines of code by approximately 40% (compared to Java).

Expressive means, it's easy to write code that both humans and compilers can understand easily.

Easy to Learn

Learning Kotlin is easy if you know other programming languages like Java, Scala, Groovy, C#, Javascript and Gosu.

Tool-Friendly

Kotlin is developed by JetBrains, a company renowned for creating development tools for professionals. No wonder, it is tool-friendly.

Safe

Kotlin is a statically types language. Hence, the type checking occurs at compile-time as opposed to run-time and trivial bugs are caught at an early stage.


Present and Future of Kotlin

Present

  • Many companies like Netflix, Uber, Trello, Pinterest, Corda, etc are using Kotlin (along with other programming languages) to create applications.
  • Google's Android team announced Kotlin as an official language for Android app development.
  • You can replace Java code with Kotlin seamlessly. It is 100% interoperable with Java and Android.

Future

Possible future projects in Kotlin are:

  • Cross-platform game development
  • Cross-platform mobile application development
  • Server-side and microservices
  • Data analysis and machine learning
  • Embedded system: Arduino/Raspberry Pi to professional controllers directly

How you can learn to code in Kotlin?

Learn Kotlin from Programiz

Programiz offers a complete series of easy to follow Kotlin tutorials along with suitable examples. These tutorials are targeted for absolute beginners with no prior knowledge of Kotlin programming language.

The Kotlin Website (Official Site)

Kotlin Reference and Kotlin Tutorial from the official site is one of the most reliable sources to learn Kotlin. When in doubt, always follow the official resources.

Learn Kotlin from Book

It is always a good idea to learn to program from books. You will get the big picture of programming concepts in the book which you may not find elsewhere.

Here are some books we recommend.

  • Kotlin in Action - written by Dmitry Jemerov and Svetlana Isakova (developers on the Kotlin team)
  • Programming Kotlin - aimed at Java developers who want to learn and use Kotlin alongside Java
  • Fundamental Kotlin - short manual for developers to switch to Kotlin language in no time

Other useful Resources

Here are a few resources to expand your Kotlin knowledge and seek help when you stuck.


Final Words

Kotlin has already gained a reputation for being concise, expressive and safe. And, with Google's announcement (an official language for Android development), it's safe to say that Kotlin is here for the big run.

If you are a Java/Android developer, we recommend you to learn Kotlin when possible. It not only makes your CV better but also helps to increase productivity.