Question

How to convert int array to int number in Kotlin

Answer 1

fun intArrayToIntNumber(arr: IntArray): Int {
    var n = 0

    for (num in arr) {
        n = n * 10 + num
    }

    return n
}

fun main() {
    val arr = intArrayOf(4, 6, 3, 9, 1, 2)
    
    println(intArrayToIntNumber(arr))
}



 
/*
run:

463912
 
*/

 

70+ SQL courses for beginners and professionals