Answering a Recent Interview Question…Thoroughly

Here is a coding exercise I was asked to solve during a recent interview:

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:
1, 2, 3, 5, 8, 13, 21, 34, 55, 89, …
By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

This is a basic solution, it is what I consider a rough prototype.

Here is a more architected solution. Tasks have been separated into classes with clear and narrowly defined responsibilities. I consider this a decent draft 2. This code is still not ready to be used in a production system.


A complete Solution:

Fleshed out unit tests make this project ready for use in a production system.