Hey everyone. I was instructed to create an bank account program that mimics an atm. New users get added to a customers.txt file and I have to validate usernames and passwords from that same file. This is what I have so far.
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Since the assignment requires a file of customer usernames and passwords, you need to define the format of the customer.txt file and then read it into a collection of some kind. Then, when a returning ATM user enters their username and password, the customer collection can be searched for an existing username and corresponding password to validate the user's logon. If a new customer, the new ussername and password will be added to the customer collection. The customer.txt file can be updated, written from the customer collection, after each customer logoff or before the ATM shuts down.
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