Java Factorial Example

public class NumberFactorial {

        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 a number is " + factorial);
        }
}

/*
Output of the Factorial program would be
Factorial of a number is 120
*/