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- /**
- * Author : YogaOcean
- * Date : 04-Des-2016
- * Program : Transaction class (part of ATM case study)
- */
- public abstract class Transaction
- {
- private int accountNumber; // indicates account involved
- private Screen screen; // ATM's screen
- private BankDatabase bankDatabase; // account info database
- // Transaction constructor invoked by subclasses using super()
- public Transaction(int userAccountNumber, Screen atmScreen, BankDatabase atmBankDatabase){
- accountNumber = userAccountNumber;
- screen = atmScreen;
- bankDatabase = atmBankDatabase;
- } // end Transaction constructor
- // return account number
- public int getAccountNumber(){
- return accountNumber;
- } // end method
- // return reference to screen
- public Screen getScreen(){
- return screen;
- } // end method
- // return reference to bank database
- public BankDatabase getBankDatabase(){
- return bankDatabase;
- } // end method
- // perform the transaction (overridden by each subclass)
- abstract public void execute();
- } // end class Transaction
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