My First Kotlin Program: ‘Hello World!’ Tutorial for Beginners

Hello Guys, Welcome to our website KotlinGuide.com. This is our first tutorial on our website, If you are new to Kotlin and want to learn more deep and basic about Kotlin then you are in the right place. There are many ways to setup Kotlin on your computer but we’re following one of the basic ways. That way you can start practicing Kotlin code immediately without even installing a single software on your computer.

My First Kotlin Program: 'Hello World!' Tutorial for Beginners

What is Kotlin?

Kotlin is a modern, statically typed programming language. Kotlin is 100% compatible with JAVA and officially supported by Google in Android development. There are a lot of properties that make Kotlin better.

  1. Concise syntax: When Kotlin was developed, its main aim was to reduce the code so developers could write a small amount of code but it worked the same as Java code. For example, you don’t need to define getter, setter, data classes, and singleton declaration like we do in Java.
  2. Interoperability with Java: As mentioned above Kotlin code is fully compatible with Java code. So if you thinking about moving from Java to Kotlin or Converting a Java Android project to Kotlin then you can call Java code from Kotlin and Kotlin code from Java.
  3. Null Safety: Kotlin has a built-in Null safety feature that prevents null pointer exception errors and provides us a way to handle Null pointer exceptions before they come.
  4. Extension function: In Kotlin we can add new functionality to an existing function without modifying their source code.
  5. Coroutines: Kotlin comes with build support for coroutines which helps us to write asynchronous programming code.
  6. Smart data cast: In Kotlin it casts a variable automatically to its type just when you assign a value to it.

My First Kotlin Program: ‘Hello World!’ Tutorial for Beginners:

You can start practicing Kotlin code right now from below Kotlin playground. Here is the official page of Kotlin playground.

 

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