Checkout the do while loop example

WHAT IS KOTLIN?

Kotlin is a general-purpose, statically typed, and open-source programming language. It runs on JVM and can be used anywhere Java is used today. It can be used to develop Android apps, server-side apps and much more. Google accepetd the kotlin as the officill language for android.

HISTORY OF KOTLIN

Kotlin was developed by JetBrains team. A project was started in 2010 to develop the language and officially, first released in February 2016. Kotlin was developed under the Apache 2.0 license.

FEATURES OF KOTLIN

  • Concise: Kotlin reduces writing the extra codes. This makes Kotlin more concise.
  • Null safety: Kotlin is null safety language. Kotlin aimed to eliminate the NullPointerException (null reference) from the code.Interoperable.
  • Interoperable: Kotlin easily calls the Java code in a natural way as well as Kotlin code can be used by Java.
  • Smart cast: It explicitly typecasts the immutable values and inserts the value in its safe cast automatically.
  • Compilation Time: It has better performance and fast compilation time.
  • Tool-friendly: Kotlin programs are build using the command line as well as any of Java IDE.
  • Extension function: Kotlin supports extension functions and extension properties which means it helps to extend the functionality of classes without touching their code.

Syntax

  1. do{
  2. //body of do block
  3. }
  4. while(condition);

Example of do -while loop

Let’s see a simple example of do-while loop printing value 1 to 5.

  1. fun main(args: Array){
  2. var i = 1
  3. do {
  4. println(i)
  5. i++
  6. }
  7. while (i<=5);
  8. }

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