Program to calculate factorial of given number in Java

/*Program to calculate factorial of given number*/

class P2
{
    public static void main(String args[])
    {
        int i , number , factorial ;
        number = 7;

        for (i=1,factorial=1 ; i<=number ; i++)
            factorial = factorial * i ;

         System.out.println("The factorial of "+number+" : "+factorial);
    }
}