Contains KataBankOCR implementation in Java from Coding dojo with some tests using the test cases listed on the kata page.

On command line takes one argument, a file containing account numbers to be read represented with pipes and underscores (referred to as "digit representation" in the code). Produces a file containing interpreted (when possible) account numbers with appropriate flags if there's a problem with the account number:

• ERR when there is an erroneous account number that can't be interpreted by adding or removing a pipe or an underscore

• ILL when there is an error with the original digit-representation.

• AMB when there are multiple possible account numbers when either ERR or ILL flagged account number is corrected with adding or removing a pipe/underscore.