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package com.lineadecodigo.java.basico;

/**
* @file FactorialDeUnNumero.java
* @version 1.0
* @author Linea de Codigo (http://lineadecodigo.com)
* @date 27.marzo.2011
* @url http://lineadecodigo.com/java/factorial-de-un-numero/
* @description Calculo de un factorial
*/

public class FactorialDeUnNumero {

public static int factorial(int x){

// Factorial recursivo
if (x==1)
return 1;
else
return x * factorial(x-1);
}

public static void main(String[] args) {

// Numero del que queremos sacar el factorial
int iNumero = 4;

int iFactorial = 1;
int iContador = iNumero;

while (iContador != 0) {
iFactorial = iFactorial * iContador;
iContador--;
}

System.out.println("El factorial del número " + Integer.toString(iNumero) + " es " + Integer.toString(iFactorial)); ;
System.out.println("El factorial del número " + Integer.toString(iNumero) + " es " + Integer.toString(factorial(iNumero)));

}
}

Change log

r359 by vcuervo on Mar 26, 2011   Diff
Factorial de un número
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