Write a program that prompts the user to input an integer and then outputs both
ID: 3929661 • Letter: W
Question
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. Using a while loop with a flag must use a substring for the numbers and sum.
I am so new at this I don't even know where to begin I was lost at the while loop and the substring.
import java.util.*;
public class sumDigits
{
static Scanner console = new Scanner(System.in);
public static void main(String[] args)
{
//declare variables
int number, condition, remainder;
int counter = 0;
int sum = 0;
//get input
System.out.println("Please enter an integer: ");
number = console.nextInt();
for (x = 0; x < var.length; x++)
{
numberStr = var.substring(x, x + 1);
number = Interger.parseInt(numberStr);
sum = sum + number;
}
System.out.print(" The sum of the digits is " + sum);
}//end main
}//end class
Explanation / Answer
Here is code:
import java.util.*;
public class sumDigits
{
static Scanner console = new Scanner(System.in);
public static void main(String[] args)
{
//declare variables
int number, condition, remainder,temp;
int counter = 0;
int sum = 0;
//get input
System.out.println("Please enter an integer: ");
number = console.nextInt();
if(number < 0) // is number is negitive
{
number = -(number); // converts to positive
}
String numbers = "";
while (number > 0) {
temp = number;
sum = sum + number % 10; //Extracts the last digit and adds it to the sum
number = number / 10; //removes the last digit
numbers = (temp % 10) + " " + numbers;
}
System.out.println(numbers + "and the sum is " + sum);
}//end main
}//end class
Output
Please enter an integer:
-5462
5 4 6 2 and the sum is 17
case 2
Please enter an integer:
51564
5 1 5 6 4 and the sum is 21