kotlin syntax code example

Example 1: kotlin variable in string

//Kotlin variable in string

//variables go in a ${} in a string, example
println("Happy ${age}th birdthday, ${name}!"

Example 2: return type in kotlin function

//Function having two Int parameters with Int return type
fun sum(a: Int, b: Int): Int {
    return a + b
}

Example 3: !! in kotlin

//The not-null assertion operator
val l = b!!.length