Opening Hours :7AM to 9PM
class NeonNumber { public boolean isNeonNumber(int n) { int sum = 0; int square = n * n; while (square > 0) { sum += square % 10; square /= 10; } return sum == n; } } public class Main { public static void main(String[] args) { NeonNumber n=new NeonNumber(); System.out.println(n.isNeonNumber(9)); // prints "true" System.out.println(n.isNeonNumber(10)); // prints "false" } }