In this post I am going to discuss a program called, **Entered Number A Spy Number Or Not** **Through Java Program**.

**What is a Spy Number?**

When you enter a natural number like 1124 then sum up its digit is equal to the product of all the digits. Like,

```
//Example:
Suppose n=1124
Product of digits on prod=(1 * 1 * 2 * 4) = 8
Sum of digits on sum=(1 + 1 + 2 + 4) = 8
Here, sum==prod both product and sum are equal.
Output: Spy Number
Input : 1412
Explanation :
sum = (1 + 4 + 1 + 2) = 8
product = (1 * 4 * 1 * 2) = 8
since, sum == product == 8
Output : Spy Number
Input : 132
Explanation :
sum = (1 + 3 + 2) = 6
product = (1 * 3 * 2) = 6
since, sum == product == 6
Output : Spy Number
```

**C program to check number is a spy number or not**:

// Java program to // check Spy number import java.util.*; class GFG { // boolean function to // check Spy number static boolean checkSpy(int input) { int digit, sum = 0, product = 1; while (input > 0) { digit = input % 10; // getting the // sum of digits sum += digit; // getting the product // of digits product *= digit; input = input / 10; } // Comparing the // sum and product if (sum == product) return true; else return false; } // Driver code public static void main(String args[]) { int input = 1412; if (checkSpy(input)) System.out.println("The number is "+ "a Spy number"); else System.out.println("The number is "+ "NOT a Spy number"); } }

##### Case-1:

`The number is a Spy number`

If you find this post helpful please comment and share this post and wants to improve WhatsApp us.