Transaction.java
资源名称:ATM.zip [点击查看]
上传用户:ljt780218
上传日期:2022-07-30
资源大小:110k
文件大小:2k
源码类别:
金融证券系统
开发平台:
Java
- // Transaction.java
- // Abstract superclass Transaction represents an ATM transaction
- 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 getAccountNumber
- // return reference to screen
- public Screen getScreen()
- {
- return screen;
- } // end method getScreen
- // return reference to bank database
- public BankDatabase getBankDatabase()
- {
- return bankDatabase;
- } // end method getBankDatabase
- // perform the transaction (overridden by each subclass)
- abstract public void execute();
- } // end class Transaction
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- * (C) Copyright 1992-2005 by Deitel & Associates, Inc. and *
- * Pearson Education, Inc. All Rights Reserved. *
- * *
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