Write a program to input a number and find the sum of First and Last digit of this number?(2784=2+4=6first and last digit sum)

45)  Write a program to input a number and find the sum of First and Last digit of this number?(2784=2+4=6first and last digit sum)

import java.util.*;

public class First_last_digit_sum

{

   public static void main(String args[ ])

   {

      Scanner sc = new Scanner (System.in);

      System.out.println("Enter a number");

      int a = sc.nextInt();

      int p =a;

      int c = 0;

      while(p>0)

      {

          p=p/10;

          c++;

      }

      int x = (int)Math.pow(10,(c-1));

      int l = a/x;

      int f = a%10;

      int s = l+f;

      System.out.println("SUM of FIRST and LAST digit of a entered number = "+s);

    }

}

Output :  

sum-of-first-and-last-digit-of-a-number

Write a program to input a number and find the Sum and Count the all digit of this number.(2784=2+7+8+4=21…no. of digit=4)