Write a program to input a number and check if it is a neon number or not.

A number is said to be neon, if sum of all digits of the square of the number is equal to the number.

For example,

(1) Input 9,

It’s square => 9**²** = 81 . Now, 8+1 = 9

So 9 is a Neon Number

(2)

Input 25,

It’s square = 625 = 6+2+5 = 13

So 25 is not a Neon Number

import java.util.*; class Neon { public static void main(String args[]) { Scanner sc = new Scanner(System.in); int n; System.out.println("Enter the number:"); n=sc.nextInt(); int s=n*n; //square of the number //sum of digits of the square int sum=0; while(s>0) { sum=sum+(s%10); s=s/10; } if(sum==n) System.out.println(n + " is a Neon number"); else System.out.println(n + " is not a Neon number"); } }

Deepayan MandalSir, you have really helped me a lot in my preparations for ICSE computer.