Kotlin - Functions

 function with two Int parameters and Int return type.

fun sum(a: Int, b: Int): Int {

    return a + b

}

sum of 3 and 5 is 8

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Target platform: JVMRunning on kotlin v.1.6.0

A function body can be an expression. Its return type is inferred.

fun sum(a: Int, b: Int) = a + b

sum of 19 and 23 is 42