Program to find Factorial of a number.

Explanation :
4! = 4*3*2*1 = 24
5! = 5*4*3*2*1 = 120

Code:

 class Factorial{
 public static void main(String args[]){
  int i,fact=1;
  int number=5;
  for(i=1;i<=number;i++){  
      fact=fact*i;  
  }  
  System.out.println("Factorial of "+number+" is: "+fact);  
 }
}