Kotlin `When` Statement Example

In this tutorial you will learn about Whenstatement via simple step by step examples.

Example 1: When

Let us look at a simple When statement example written in Kotlin Programming Language. Follow the following steps:

Step 1: Create Project

1. Open your favorite Kotlin IDE.
2. In the menu go to File --> Create New Project.

Step 2: Add Dependencies

No dependencies are needed for this project.

Step 3: Write Code

Our code will comprise the following Kotlin files:

• When.kt

1. In your editor or IDE, create a file known as When.kt.
2. Then add the following code:

(a). When.kt

package When

fun main(args : Array<String>) {
    var x = 101
    val greater = { x : Int -> x > 100 }

    //This is one hell of a flexible switch statement
    when {
        x in 1..50 -> print("In range")
        greater(x) -> print("Great")
        x == 50 -> print("Exact match")
        else -> print("Outside range")
    }
}

Step 4: Run

Copy the code, build and run.

Reference

Here are the reference links: