Programación Java: Factorial

Código realizado en Netbeans 7.2

/*
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package factorial;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 *
 * @author Salvador
 */
public class Factorial {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        double N,Factorial=1;
        System.out.print("Introduzca Numero a Factorizar:");
        BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
        N=Double.parseDouble(br.readLine());
        while(N>1){
            Factorial=Factorial*N;
            N=N-1;
        }
        System.out.println("El factorial es: "+Factorial);
    }
}