Neon Number
------------------
Program to check a number is a neon number or not.
A neon number is a number where the sum of digits
of square of the number is equal to the number.
For Example if the input number is 9,
its square is 9*9 = 81
and
sum of the digits is 9.
i.e. 9 is a neon number.
// Source Code
import java.util.*;
public class NeonNumber
{
public static void main(String args[])
{
Scanner in=new Scanner(System.in);
int num,rd,square,sum=0;
System.out.print("Enter a Number To Check : ");
num = in.nextInt();
square=num*num;
while(square!=0)
{
rd=square%10;
sum=sum+rd;
square=square/10;
}
if(sum==num)
{
System.out.print("It is a Neon Number . ");
}
else
{
System.out.print("It is Not a Neon Number . ");
}
}
}
// Sample Input :
Enter a Number To Check : 9
// Sample Output:
It is a Neon Number .
// Sample Input :
Enter a Number To Check : 5
// Sample Output:
It is Not a Neon Number .
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