throws a TickerNotFoundException every time a ticker searched for is not found, which allows us to definitively tell the user whether their inputted ticker is wrong or not
throws a RunTimeException if the user does not have a file.txt with their API key in it
This PR aims to:
TickerNotFoundExceptionevery time a ticker searched for is not found, which allows us to definitively tell the user whether their inputted ticker is wrong or notRunTimeExceptionif the user does not have a file.txt with their API key in it