Question

Write a program in Java to accept any two positive integers only and check whether their last digit is equal or not .

Answer 1

Answer:

import java.util.*;

public class Solution {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

System.out.print("Input a positive integer: ");

int n = in .nextInt();

if (n > 0)

System.out.println(add_digits_until_one(n));

}

public static int add_digits_until_one(int n) {

while (n > 9) {

int sum_digits = 0;

while (n != 0) {

sum_digits += n % 10;

n /= 10;

}

n = sum_digits;

}

return n;

}

}