Java - RECURSIVIDAD

public double calcularMedia(int[] vector) {

    int suma = 0;

    for (int i = 0; i < vector.length; i++) {

        suma += vector[i];

    }

    return suma / vector.length;

}

public int[] reverse(int[] vector) {

    int[] aux = new int[vector.length];

    for (int i = 0; i < aux.length; i++) {

        aux[i] = vector[vector.length - i - 1];

    }

    return aux;

}