Kotlin Basics

Use values and string templates.

Kotlin

fun main() {
    val name = "Ada"
    println("Hello, $name")
}

Output

Hello, Ada

Explanation

val creates a read-only reference. main is the program entry point. A string template inserts the current value into text.

Explore the dry run

Guided walkthroughReady

1fun main() {

2 val name = "Ada"

3 println("Hello, $name")

4}

Start to inspect the source, values, and output. These prepared steps explain the published sample; grouped loop steps describe multiple iterations.

View the complete dry-run table

Prepared trace of the published program. Some rows group repeated iterations.
Step / line	What happens	State after step	Output so far
	Bind Ada to a read-only name.	`name = "Ada"`	—
	Insert name into the string template and print.	`name = "Ada"`	Hello, Ada