FactorialCalculation.java

import java.util.Scanner;
public class FactorialCalculation {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        System.out.print("Enter a number: ");
        int z = 0;
        int n = sc.nextInt();
        z = n;
        long factorial = 1;
        for (int i = 1; i <= n; n--) {
            factorial *= n;
        }
        System.out.println("The factorial of " + z + " is: " + factorial);
    }
}