Sum of Odd Digits of a Number in Java Language

Sum of Odd Digits of a Number in Java Language (updated) – Java program to find the sum of digits of the given number. Now in this post, we will develop a program to calculate the sum of odd digits of a number in Java language program.

Example:- Number = 12345
Then the odd digits in a given number are 1, 3, 5 and therefore sum of odd digits = 1 + 3 + 5 = 9

Procedure to calculate the sum of odd digits in a number

• Take a number
• Declare a variable oddDigitSum to store the sum value and initialize it with 0.
• Find the last digit of the number
• Check that the last digit is odd or not
• If it is odd then add it to oddDigitSum variable, else go to next step
• Remove the last digit of the number
• Repeat the 3 to 6 steps until the number becomes 0.

Calculate the sum of odd digits in a number in JAVA

import java.util.Scanner;

public class SumOfOddDigitsProgram {

  public static int findOddDigitSum(int number) {

     // declare variables
     int lastDigit = 0;
     int oddDigitSum = 0;

     // loop to repeat the process
     while(number!=0) {

         // find last digit
         lastDigit = number%10;

         // check last digit odd?
         if(lastDigit % 2 != 0) {
            // add it to sum
            oddDigitSum += lastDigit;
         }

         // remove last digit of number
         number = number / 10;
      }

      // return sum value
      return oddDigitSum;
  }

  public static void main(String[] args) {

      // declare variables
      int number = 0;
      int sumOfOddDigits = 0;

      // create Scanner class object 
      // for reading the values
      Scanner scan =  new Scanner(System.in);

      // read inputs
      System.out.print("Enter an integer number::");
      number = scan.nextInt();

      // find sum of digits of number
      sumOfOddDigits = findOddDigitSum(number);

      // display result
      System.out.println("The sum of odd digits of"+
          +" the number "+number+" = "+ sumOfOddDigits);

      // close Scanner class object
      scan.close();
  }
}

OUTPUT

Enter an integer number:: 12345
The sum of odd digits of the number 12345 = 9

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