class Recursividad01 {
public static int factorial(int n) {
if (n == 0) {
return 1;
} else {
return n * factorial(n - 1);
}
}
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
int num;
do {
System.out.print("Ingrese numero :");
num = in.nextInt();
} while (num <= 0);
System.out.println("El factorial es : " + factorial(num));
}
}
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