String Interpolation

Kotlin allows you to directly insert variables in strings using the dollor sign($) and with curly brackets {} if it is an expression.

fun main(args:Array<String>)
{
    var msg:String="Kotlin Test Message"

    print("String interpolation $msg")
    print("Length of the message ${msg.length}")
    
    var a:Int=10

    var b:Int=15

    print("Addition of $a and $b is ${a+b}")
}

Output

String interpolation Kotlin Test Message

Length of the message 19

Addition of 10 and 15 is 25

Kotlin