Java Exercises: Compute the sum of the digits of an integer
Java Basic: Exercise-33 with Solution
Write a Java program and compute the sum of the digits of an integer.
Test Data:
Input an intger: 25
Pictorial Presentation:
Sample Solution:
Java Code:
import java.util.Scanner;
public class Exercise33 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Input an integer: ");
long n = input.nextLong();
System.out.println("The sum of the digits is: " + sumDigits(n));
}
public static int sumDigits(long n) {
int sum = 0;
while (n != 0) {
sum += n % 10;
n /= 10;
}
return sum;
}
}
Sample Output:
Input an intger: 25 The sum of the digits is: 7
Flowchart:
Java Code Editor:
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