[Java예제] Factorial(팩토리얼) 예제2

import java.util.Scanner;
 
public class FactorialUtil{
 public static void main(String[] args){
  Scanner keyboard=new Scanner(System.in);  //수입력(inpit묻기)
  System.out.print("수를 입력하세요:");
 
  FactorialUtil util=new FactorialUtil();    //참조변수.펙토리얼함수를 참조하는
  System.out.print("펙토리얼 결과값="+util.factorial(keyboard.nextInt()));
 }
 
 public int factorial(int n){ 
 
  if (n==1)
   return 1;
  return factorial(n-1)*n;
 
  }
 
 
}