Write a java program to find the Factorial of a number

Answer :

/*
List Even Numbers Java Example
This List Even Numbers Java Example shows how to find and list even
numbers between 1 and any given number.
*/
 public class FactorialExa1
 {

  public static void main(String[] args) 
  {
    int number = 5;
    /*
     Factorial of any number is! n.
     For example, factorial of 4 is 4*3*2*1.
    */
    
    int factorial = number;
    for(int i =(number - 1); i > 1; i--)  
    {
       factorial = factorial * i;
    }
     System.out.println("Factorial of the number is " + factorial);
  }

 }

   output: Factorial of the number is 120

Using Recursion

 class FactorialExa2
 {  
  static int factorial(int n)
  {    
    if (n == 0)    
      return 1;    
    else    
      return(n * factorial(n-1));    
  }
    
  public static void main(String args[])
  {  
    int i,fact=1;  
    int number=5;   
    fact = factorial(number);   
    System.out.println("Factorial of "+number+" is: "+fact);    
  }  
}  

   output: Factorial of 5 is 120