Neon Program

Java Script Program:

let no = 9;
let sqr = no * no;

function neon(sqr) {
    let sumofnum = 0;

    while (sqr > 0) {
        sumofnum = sqr % 10 + sumofnum;
        sqr = Math.floor(sqr / 10);
    }

    return sumofnum;
}

if (no === neon(sqr)) {
    console.log("Its neon");
} else {
    console.log("not neon");
}

Output:

Java Program:

class NeonNumber {

    static int neon(int sqr) {
        int sumofnum = 0;

        while (sqr > 0) {
            sumofnum = sqr % 10 + sumofnum;
            sqr = sqr / 10;
        }

        return sumofnum;
    }

    public static void main(String[] args) {

        int no = 9;
        int sqr = no * no;

        if (no == neon(sqr)) {
            System.out.println("Its neon");
        } else {
            System.out.println("not neon");
        }
    }
}

Python Program:

no=9
sqr=no*no
def neon(sqr):
    sumofnum=0
    while sqr>0:
       sumofnum=sqr%10 + sumofnum
       sqr=sqr//10
    return sumofnum
if(no==neon(sqr)):
     print("Its neon")
else:
  print("not neon")