step Function in Ranges in Kotlin

Introduction

step Function in Ranges is a fundamental concept every Kotlin developer should understand. Ranges represent intervals of values and integrate cleanly with for loops, contains checks, and filtering operations.

Step defines increment or decrement amount in range iteration. In this tutorial you will learn the syntax, walk through a complete example program, study the sample output, and review best practices so you can apply the concept confidently in your own projects.

Definition

• step defines increment or decrement amount in range iteration.
• Can be used with .., until and downTo.
• Useful for skipping values.

Syntax

for (i in 0..10 step 2) { }

step Function in Ranges in Kotlin Example Program in Kotlin

fun main(args: Array<String>) {
    for (i in 0..10 step 2) {
        print("$i ")
    }
}

Sample Output

0 2 4 6 8 10

When to use

Use ranges in for loops, membership tests, and slicing operations on collections or progress indicators.

How it works

1. The program starts with a main function — the entry point that runs when you execute the file.

2. Step defines increment or decrement amount in range iteration.

3. Run the program in IntelliJ IDEA, Android Studio, or with the Kotlin command-line compiler (kotlinc / kotlin). Compare your console output with the sample output shown below.

Best Practices

Common Mistakes

Key Points

• step defines increment or decrement amount in range iteration.
• Can be used with .., until and downTo.
• Useful for skipping values.
• Test the example locally and verify the output matches the sample.
• Experiment by changing input values to see how behaviour changes.

Notes

• Semicolons at the end of statements are optional in Kotlin.