added new function newDelimString that changes the input string so it will be split by the new delimiter. Code refactored accordingly
test Throw Exception added and passed. Numbers coming in are just hardcoded
check if number is negative added and code refactored
Throw exception now takes in the negative numbers. They are no longer hardcoded
variables renamed for better understandin, code also refactored
test for multiple negative numbers added and passed
test to ignore numbers > 1000 added and passed
function created to check if the number <= 1000 and code refactored
test delimiter of any length implemented and all tests passed
test to take in multiple delimiters of any length implemented and test passed
function added that replaces a new delimiter with a comma