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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