how to solve

Question

Calculating the sum of a number is a popular programming request. A number is given as input, calculate and output the sum of its digits. Example Input Data: 426 Sample Output Data: 12 Hint: use a while loop to iterate over the number. During each iteration, add the last digit to the sum to get the remainder by 10 (number% 10), then remove the last digit of the number by dividing it by 10 (number / 10).

fun main(args: Array<String>) {
var num = readLine()!!.toInt()
// var num=426
var i=12
while(i<=num)
var sum=(num%10)
println(sum)
}

Answer 1

//Where you not understanding there?
//the total code время Ч

fun main(args: Array<String>) {
var num = readLine()!!.toInt() //for taking input

var sum=0 //declare before loop
while (num>0) //**using a while loop to iterate over the number until number>0 (no more digits to add)
{
//**During each iteration, add the last digit to the sum to get the remainder by 10 (number% 10)

sum = sum+(num%10); //add reminder to sum

//then remove the last digit of the number by dividing it by 10 (number / 10).
num = num/10
}

println(sum) //printing calculated sum.

}

Answer 2

thanks

Answer 3

var sum=0 //declare before loop
while (num>0)
{
sum = sum+(num%10); //add reminder
num = num/10
}
println(sum)

Answer 4

can you explain, i want to understand

Answer 5

You're welcome..