Question

If a four-digit number is input through the keyboard, write a program to obtain the sum of the first and last digit of this number.​

Answer 1

The program to obtain the sum of the first and the last digit of a four digit number has been attached above (also its output). Kindly check it!

Answer 2

Program in Java :-

import java.util.Scanner;

public class FourDigit {

public static void main(String [] args) {

int num, firstDigit, lastDigit, sum;

Scanner sc = new Scanner(System.in);

System.out.print("Please enter a four digit number : ");

num = sc.nextInt();

if (num <= 9999) {

firstDigit = num / 1000;

lastDigit = num % 10;

sum = firstDigit + lastDigit;

System.out.println("Sum of first " + " and last " + " digits = " + sum);

}

else {

System.out.println("Invalid");

}

}

sc.close();

}