Answer:
//Here is code in java.
import java.util.*;
class Main
{
public static void main (String[] args) throws java.lang.Exception
{
try{
int in;
//scanner class object to read the input
Scanner scr=new Scanner(System.in);
// variable to keep running total
int total=0;
System.out.println("please enter an Integer:");
// read the input first time
in=scr.nextInt();
System.out.print("individual digits of "+in+" is ");
if(in<0)
{
in=-(in);
}
//call the function to print the digits of number
print_dig(in);
System.out.println();
//calculate the sum of all digits
do{
int r=in%10;
total=total+r;
in=in/10;
}while(in>0);
//print the sum
System.out.println("total of digits is: "+total);
}catch(Exception ex){
return;}
}
//recursive function to print the digits of number
public static void print_dig(int num)
{
if(num==0)
return;
else
{
print_dig(num/10);
System.out.print(num%10+" ");
}
}
}
Explanation:
Read a number with the help of object of scanner class.if the input is negative
then make it positive number before calling the function print_dig().call
the recursive method print_dig() with parameter "num".It will extract the digits
of the number and print then in the order. Then in the main method, calculate
sum of all the digits of number.
Output:
please enter an Integer:
3456
individual digits of 3456 is 3 4 5 6
total of digits is: 18
please enter an Integer:
-2345
individual digits of -2345 is 2 3 4 5
total of digits is: 14
