[function]

1. function

//// function
val price1 = 100
val price2 = 200

val price3 = sumPrice(price1, price2)
println("price3 = $price3")

 

ex1. 

fun sumPrice(price1: Int, price2: Int): Int {
    return price1 + price2
}

 

ex2.

fun sumPrice(price1: Int, price2: Int): Int = price1 + price2