Sum of squares exercise 💪

Improve your functional programming skills

Task

SumOfSquares is a class that allows you to calculate a sum of squares in a provided range. It is implemented using OO approach. Your job is to refactor the todo section using functional approach. So the implementation will not use mutable variables, and all test will pass.

Pre-conditions ❗

You're supposed to be familiar with Java 8

How to start ❓

• Just clone the repository and start working on the todo section, verify your changes by running tests
• If you don't have enough knowledge about this domain, check out the links below
• Don't worry if you got stuck, checkout the branch exercise/completed and see the final implementation

Related materials ℹ️

• Functional programming tutorial