fatorial

package matriz;
import java.util.Scanner;
public class xd {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int num;
        int fat = 1;


        System.out.println("numero");
        num = sc.nextInt();
        for(int i = num; i>0;i--){
            System.out.println(i);
            fat *=i;
            if(num == 0){
                fat = 1;
            }
        }
        System.out.println(fat);
    }
    /* César N. */
}