A method EX(x, n) to calculate the value of ex = 1 + (x / 1!) + (x2 / 2!) + (x3 / 3!) + + (xn / n!), Where n and x are supplied by the user. You must call 2 recursive methods (1 for factorial and another one for power (do not use pow method available in java).

Methods:

public static int factorial(int n) { if (n == 1) { return 1; } return n * factorial(n - 1); }

public static int power(int x, int n) { if (n == 1) { return x; } return x * power(x, n - 1); }