Java Factorial using recursion example

Java program to find factorial of a number using recursion. This Java method gets and integer number n and returns n factorial using recursion.

//Java factorial using recursion

public double factorial(int n){

    if (n==0)

        return 1;

    else

        return n*(factorial(n-1));

}

How does recursive factorial method work? Here you can see how recursion works to find factorial of a number.