Factorial.java

import java.util.Date;

public class Factorial {
    private int computing = 0;

    public int factorial(int n) {
        if (n == 1){
            System.out.println(n + " = 1 [ " + new Date().getTime() + " ]");
            return 1;
        }
        else{
            computing = n * factorial(n - 1);
            System.out.println(n + " * factorial(" + n + " - 1) = " + computing + " [ " + new Date().getTime() + " ]");
            return computing;
        }
    }

    public static void main(String[] args) {
        Factorial newFactorial = new Factorial();
        int answer = newFactorial.factorial(6);
        System.out.println("\nThe factorial of 6 is " + answer);
    }
}