A special two-digit number is such that when the sum of its digits is added to the product of its digits, the result is equal to the original two-digit number.
Example: Consider the number 59.
Sum of digits = 5 + 9 = 14
Product of its digits = 5 × 9 = 45
Sum of the sum of digits and product of digits = 14 + 45 = 59
Write a program to accept a two-digit number. Add the sum of its digits to the product of its digits. If the value is equal to the number input, output the message “Special 2-digit number” otherwise, output the message “Not a special 2-digit number”.
import java.util.Scanner;
class Special2DigitNumber
{
public static void main(String args[])
{
Scanner in = new Scanner(System.in);
System.out.println("Enter a number");
int n = in.nextInt();
if(n>9 && n<100) //if the number is of 2 digits
{
int l = n%10;
int f = n/10;
int s = f+l;//sum
int p = f*l;//product
if(n == (s+p))
System.out.println("Special 2 digit no.");
else
System.out.println("Not a Special 2 digit no.");
}
else
{
System.out.println("Number is not of 2 digits");
}
}
}