Introduction

In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..

class Javaexcercise{  
 static int factorialofnumber(int n){    
  if (n == 0)    
    return 1;    
  else    
    return(n * factorialofnumber(n-1));    
 }    
 public static void main(String args[]){  
  int fact=1;  
  int number=5 ;//It is the number to calculate factorial    
  fact = factorialofnumber(number);   
  System.out.println("Factorial of "+number+" is: "+fact);    
 }  
}

Result