Goal: Learn to write recursive functions.

Assignment: Implement a public method named calculatePower that accepts two int parameters for the base and exponents. However, for this assignment, you will also have to implement a calculatePowerHelper method, a very simple recursive helper method. They should both return double values.

The method should not use loops $($for$,$ while, do$-$while$)$ to perform its task, showcasing recursion as a viable alternative for iterative processes.