Java Factorial Program using Recursion

class FactorialRecusionProgramExample{

static int facto(int a){  
  if (a == 0)  
    return 1;  
  else  
    return(a * facto(a-1));  
 }  
 public static void main(String args[]){
  int i,f=1;
  int num=5;//Number for which we are calculating factorial  
  f = facto(num);  
  System.out.println("Factorial of "+num+" is: "+f);  
 }
}