Scala function: Calculate the sum of digits in a number

Scala Function Exercise-3 with Solution

Write a Scala function to calculate the sum of digits in a given number.

Sample Solution:

Scala Code:

object DigitSumCalculator {
  def sumOfDigits(n: Int): Int = {
    var num = n
    var sum = 0

    while (num != 0) {
      val digit = num % 10
      sum += digit
      num /= 10
    }

    sum
  }

  def main(args: Array[String]): Unit = {
    val number = 12345678
    val sum = sumOfDigits(number)
    println(s"The sum of digits in $number is: $sum")
  }
}

Sample Output:

The sum of digits in 12345678 is: 36

Scala Code Editor :

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