Program-3-CS-353

• The Program reads data from two files "ACCOUNTS.txt" and "TRANSACTIONS.txt"
• Parses the data as list of list of string.
• Than we Tag the data from "TRANSACTIONS.txt" either being 'Payment or 'Purchase.
• If its Payment than we add a anothet tag to the data either 'Credit, 'Debit, 'Cash, Check.
• We filter the data from "TRANSACTIONS.txt" according to the account number of each user.
• Program sorts the transactions of each account based on the timeStap
• THan we print all the data to the "STATEMENT.txt".
• All the statements are printed in desending order.
• If payment method is anything other than 'Credit, 'Debit, 'Cash, Check it prints invalid transaction.
• In print funcation we have seprate condition for printing 'Credit, 'Debit, 'Cash, Check so they can be expanded easily for more funcationality.