To calculate the sum of all digits of a number
- First, we will get a reminder of the input number by the modulo operator (%) and add it to the
sumvariable. - Second, we will divide the input number by 10 and assign it again to an input number variable.
- We will repeat the above process until the input number is not equal to zero.
- At the end we will have the sum of all the digits of a number in the
sumvariable.
Let’s a Java program to calculate the sum of all digits of a number.
Java Program
/**
* A Java program to calculate the sum of all digits of a given number
* By coderolls.com
*/
public class SumOfAllDigits {
public static void main(String[] args) {
int number = 1256;
int sum = sumOfAllDigits(number);
System.out.println("The sum of all digits of " + number + " is: "+ sum);
}
private static int sumOfAllDigits(int number) {
int sum =0;
while(number!=0){
int reminder = number%10;
sum = sum + reminder;
number = number/10;
}
return sum;
}
}
Output
The sum of all digits of 1256 is: 14