Introduction to Kotlin

JetBrains, introduced Kotlin in 2016, is a cutting-edge programming language. It is an open-source programming language.

Its popularity is because of its compatibility with Java. Kotlin is an object-oriented language that is better than Java but can still work with Java code and libraries.

Application of Kotlin

• We can use Kotlin while building mobile applications, specifically android applications.
• Additionally, it functions effectively for server-side and web programming.

Why use Kotlin?

The critical question arises why do we have to use Kotlin when there are so many different languages? The answer to this question is the many advantages Kotlin offers us.

Following are the advantages of using Kotlin:

• It’s open-source.
• Kotlin is clear and secure.
• It is easy to use.
• Java and Kotlin are entirely compatible (if somebody has experience with Java, they will quickly comprehend).
• By utilizing cutting-edge frameworks, it is possible to use Java frameworks and libraries in your new Kotlin projects without converting the entire project to Java.

Code

Let’s try to print “Hello World!” in Kotlin.

Explanation

• Line 1: This is the main function necessary to start a Kotlin program. The main function is the first thing the Kotlin compiler will run.
• Line 3: The println function prints everything that is written inside. In this program, it will print “Hello World!”.