A neon number is a number where the sum of digits of the square of the number is equal to the number. Let’s take an example. n = 9. square = 81. sum of digits of square = 8 + 1 = 9.
Program:-
package payilagam.institution;
public class Neon {
public static void main(String[] args) {
int num = 9;
int num2=num*num;
int total = 0,temp=0;
while(num2>0)
{
temp = num2%10;
total = total + temp;
num2= num2/10;
}
System.out.println(total);
if (num==total)
{
System.out.println("it is a Neon Number");
}
else
{
System.out.println("it is not a Neon Number");
}
}
}
Output Screenshot:-
