Algorithm - Find Factorial Sequence

import java.util.Scanner;

import org.junit.Test;

/**
 * 熟悉递归代码实现
 * @author 21405
 *
 */
public class RecursiveDemo {
    @Test
    public void test(){
        Scanner input = new Scanner(System.in);
        int n = input.nextInt();
        int result = factorial(n);
        System.out.println(result);
    }
    public int factorial(int n){
        if(n == 0){
            return 1;
        }else{
        //  factorial(n) = n * factorial(n-1);
            int result = n * factorial(n - 1);
            return result;
        }
    }

}