Loops in Kotlin

Loops in Kotlin

Like any other programming languages, Kotlin uses the concept of loop. Loops are mainly used to repeat a specific task. For Example, if we want to print numbers from 1 to 20, instead of writing a print statement 20 times, we can execute it through loops. Loops reduce the number of rows in the program and improve reliability. Loops are control flow structures that control the flow of the program within the loops.

For loop in Kotlin repeats itself through whatever an iterator operator provides. Unlike in Java and other languages, there is no traditional loop in Kotlin. In Kotlin, for loop is used to repeat sequences, arrays, and maps (anything provided by the iterator).

Kotlin has three types of loops:

  • for loop
  • while loop
  • do-while loop

Types of loops in Kotlin

  • for loop – Kotlin uses the for loop to repeat the program several times. It repeats itself through arrays, ranges, collections, or any other form of repetition.
  • While loop – The program uses the Kotlin loop to repeat the program several times. It executes the block of code until the result of the condition is true.
  • do-while loop – The Kotlin do-while loop is similar to the loop, with only one difference. The loop first checks the status and then executes the block of code, while looping executes the block of code first and check the status.