Question

How to recursively check if a number is palindrome in Scala

Answer 1

object Check_If_Number_Is_Palindrome_Recursively_Scala {

  def recursivelyCheckPalindrome(n: Int, original: Int): Boolean = {
    if (n == 0) {
      original == original.abs.toString.reverse.toInt
    } else {
      
      recursivelyCheckPalindrome(n / 10, original)
    }
  }

  def main(args: Array[String]): Unit = {
    val n = 12321

    if (recursivelyCheckPalindrome(n, n)) {
      println("Palindrome")
    } else {
      println("NOT Palindrome")
    }
  }
}


   
/*
run:
   
Palindrome
   
*/

 

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