If you can read lengthy write-ups without getting too bored, you can go with this tutorial on the leading online publishing platform – Medium. If you are looking to learn the fundamentals of Kotlin and jump straight into Android app development, this Kotlin tutorial can be a great choice. While the desired skill level for this tutorial is intermediate, you can completely trust it for a fruitful learning experience even if you are a newbie developer. If you are thinking of choosing Kotlin as your primary programming language, especially for Android development, we must say that you are on the right track.

Kotlin developer guide

You’ll learn all the language basics including variable declarations, data types and the type system to conditions, loops, functions, and exception handling. Learning Kotlin can teach you a lot about language design and some of the shortcomings of Java that you may not have been aware of previously. Therefore, it can be a great way to learn about modern programming language features that you will encounter in other languages as well, such as TypeScript, Scala, Go or Rust. It can transpile to Java bytecode to run on the Java Virtual Machine (JVM) or Android. Interestingly, it can also transpile to JavaScript code or native bytecode, allowing you to use it for many different use cases.

Latest from Kotlin

Also, we highlighted the prerequisites for learning Kotlin along with the best IDEs that will come in handy for you to write Kotlin code and manage your project efficiently. To get your dream job as a Kotlin developer, ensure that both your knowledge and practical experience are visible to recruiters. To make that happen, Kotlin certification on your resume is what you need. These are a few of the popular Kotlin project ideas that one can develop. You can also search for more Kotlin projects on the web and choose those that seem interesting to you.

According to JetBrains, there are approximately 200 Kotlin user groups and numerous online forums where Kotlin enthusiasts can discuss ideas and help each other. Also, more than 450 developers are contributing directly to improve the overall ecosystem of Kotlin. Having such an extensive community that is highly active makes Kotlin stand out firmly among the most valuable programming languages of the 21st century. Kotlin is a statically typed, general-purpose programming language with type inference. It is designed to interoperate fully with Java, and the JVM bytecode generated by Kotlin is 100% compatible with Java bytecode.

Why should you learn Kotlin?

If you want to advance your Kotlin development skills, you need to get your hands dirty working on a project like the Tic Tac Toe game. While this game is extremely easy to play, developing its application is quite challenging for entry-level developers. It is a game that requires the involvement of 2 players at a time, with players choosing the ’X’ and ‘O’ symbols. This is a YouTube playlist containing several video lessons on the Kotlin programming language. The tutorial covers all the fundamentals of Kotlin that you need to get familiar with if you want to pursue a career in Android development. There are a total of 64 videos in this tutorial that will help you learn various Kotlin concepts systematically.

A certificate is issued in your name when you complete the Kotlin certification program successfully. Both players act turn by turn to put their symbol in one of the nine boxes. The first player to arrange their symbol three times in a horizontal, vertical, or diagonal line will win the game.

Q1: Is Kotlin easy to learn?

Being available online doesn’t mean that this IDE isn’t powerful; you can create and manage complex projects. Also, the best thing about this IDE is that you can write Kotlin code without any signup. You can create and used business logic across different platforms without any issues. Also, as we have mentioned earlier, Kotlin gives you the flexibility to use it for developing high-performance web apps.

Kotlin developer guide

Kotlin is a fully-featured language that supports object-oriented programming, functional programming, and metaprogramming. In This Kotlin tutorial, you’ll learn various important kotlin topics, including data types, control flow, functions, object-oriented programming, collections, and more. We will also delve into advanced https://wizardsdev.com/en/vacancy/android-kotlin-developer/ concepts such as coroutines, null safety, and functional programming in Kotlin. Concise, flexible, and easy to learn, Kotlin makes a pretty good fit for ML and data science applications. As a language, Kotlin enables quick turnaround and iterations, which are essential for experiment-heavy data science projects.


Doing comprehensive research to find the most valuable and effective tutorials would consume a lot of your time. Nonetheless, it works equally well for Kotlin and has several features capable of accelerating the development process. One thing that you need to note is that the multiplatform capability of Kotlin is still in its initial stages. However, it is quite easy to anticipate that Kotlin will become more powerful with upcoming releases.

The arrayOf function accepts any number of arguments and returns an Array. Kotlin differentiates between read-only and mutable variables at declaration time, forcing you to think about the mutability of state from the start. Apart from this, there are many companies actively looking for Kotlin developers, especially in the Android development space. So having experience in Kotlin can give you an edge in the interview process.

Now that you have some basic understanding, you can move on to more complex concepts. Similarly, the compiler infers Double for floating point numbers unless you add an f as suffix as in 1.23f, in which case it is considered a Float. There’s no such shortcut suffix for Byte or Short because these aren’t used as often. Now that you have a basic understanding of the philosophy of the language, let’s dive in and understand how to use this language. In Java you need to specify a type of each variable when you declare it.

Kotlin developer guide

You’ll now see your game appear on the screen, and you’ll be able to select an answer. Lo and behold, clicking on “A” should display the correct message and the other two should display the incorrect message. When you build Android apps, you’ll need to create layouts using XML and the visual designer, and then define how those elements work in the corresponding Kotlin or Java code. To learn Kotlin to use it professionally for Android and web development, you can take guidance from one or more extensive tutorials. Also, you can go with a certification program to learn Kotlin and, at the same time, earn a certificate that testifies your achievements. Let us help you understand by giving you a clear idea of what Kotlin certification is all about.

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