An interesting code

Question

What's your idea about my code? It calculates the factorial of your integer input. Appreciate your opinions! :)

import java.util.Scanner;

public class Calculation{

int factorial(int input){
int product= 1;
int x= input;
for(int z=0; z<input;z++){
product*=x;
x--;
}
return product;
}

public static void main(String[] args){
Scanner input= new Scanner(System.in);
Calculation o1= new Calculation();
System.out.println(o1.factorial(input.nextInt()));
}

}

Answer 1

Nice job. 👌

PS:
If you don't want to have to create an object to do the calculation you can make the factorial method static and call it directly.

Answer 2

You can exclude X:

int factorial(int input) {
int product = 1;
for(int z = 1; z <= input; z++){
product *= z;
}
return product;
}

Answer 3

Thank you guys 👍🏻