Fork this repo and refactor my code!
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Please do it in small commits, ideally explaining on each step what and why are You doing.

#1 String Calculator
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Problem description: http://osherove.com/tdd-kata-1/
Code to be refactored: https://github.com/dziemid/refactormycode/tree/master/java/string_calculator
Example of refactorings: https://github.com/dziemid/refactormycode/commits/java_string_calculator_refactoring
Example of specific small commit: https://github.com/dziemid/refactormycode/commit/355aad817cee712f5773c1df740e97dd39bbc4cf



More code to improve comming soon!
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