Java Program for Spy Number – Pencil Programmer

Write a program in Java to check whether a given number is Spy number or not.

A Spy number is a number whose sum of digits is equal to the product of its digits, Example – 1124.

So to check spy number in Java we need to follow the following steps.

Input a number.
Calculate the sum of its digits (sum).
Calculate the product of the same input number (product).
If sum == product then its a Spy number else not.

Let’s implement the same in Java.

import java.util.Scanner;

public class Main
{
	public static void main(String[] args) {
	    Scanner in= new Scanner(System.in);
	    
	    int digit, num; 
	    
		System.out.println("Enter a number");
		num = in.nextInt();
		
		int product = 1;
		int sum = 0;
		
		//Extract digit, add to sum and multiply to product
		while(num>0){
		    digit = num%10;
		    sum += digit;
		    product *= digit;
		    num=num/10;
		}
		
		if(sum == product)
		    System.out.println("Spy Number");
		else
		    System.out.println("Not a Spy Number");
	}
}

import java.util.Scanner;

public class Main

{

public static void main(String[] args) {

Scanner in= new Scanner(System.in);

int digit, num;

System.out.println("Enter a number");

num = in.nextInt();

int product = 1;

int sum = 0;

//Extract digit, add to sum and multiply to product

while(num>0){

digit = num%10;

sum += digit;

product *= digit;

num=num/10;

}

if(sum == product)

System.out.println("Spy Number");

else

System.out.println("Not a Spy Number");

}

Output

Enter a number                                                                                                                
1124                                                                                                                          
Spy Number

Enter a number

1124

Spy Number

If you have any doubts or suggestion then comment below.

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