Using Java, write a program that prompts the user to input an integer and then o

Question

Using Java, write a program that prompts the user to input an integer and then outputs both the individual digits of the number and the sum of the digits. For example, the program should: ouput the individual digits of 3456 as 3 4 5 6 and the sum as 18, output the individual digits of 8030 as 8 0 3 0 and the sum as 11, output the individual digits of 2345526 as 2 3 4 5 5 2 6 and the sum as 27, output the individual digits of 4000 as 4 0 0 0 and the sum as 4, and output the individual digits of -2345 as 2 3 4 5 and the sum as 14.

This has been asked previously but it needs to use while loops, we have not studied arrays yet. And I am stuck trying to get negative numbers to work, I am just getting a 0 in return.

Explanation / Answer

import java.io.*;
import java.util.*;
class Digits
{
    public static void main(String args[])
    {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter number: ");
        int x = sc.nextInt();
        int sum =0;

        if(x<0){
            x *= -1;
        }

        String number = String.valueOf(x);

        System.out.print("Digits are: ");

        for(int i = 0; i < number.length(); i++) {
            int j = Character.digit(number.charAt(i), 10);
            sum +=j;
            System.out.print(j + " ");
        }

        System.out.println(" Sum is: "+sum);
    }
}

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