Bank Account Management System

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Added on  2019/09/13

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This programming project focuses on designing and implementing a Bank Account Management System using Java. The core components are an abstract `BankAccount` class and a subclass `SavingAccount`. `BankAccount` manages basic account operations like deposits, withdrawals, interest calculations, and monthly processing. `SavingAccount` extends this functionality by incorporating account status (active/inactive) based on balance and withdrawal limits, along with additional service charges for excessive withdrawals. The project requires implementing these classes, testing them with a driver class (outputting results to console and file), and finally, creating a graphical user interface (GUI) for user interaction. The GUI will allow users to interact with the bank account functionalities implemented in the classes.
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Design an abstract class named BankAccount to hold the following data for a bank account:
Balance
Number of deposits this month
Number of withdrawals
Annual interest rate
Monthly service charges
The class should have the following methods:
Constructor: The constructor should accept arguments for the balance and annual interest rate
deposit: A method that accepts an argument for the amount of deposit. The method should
add the argument to the account balance. It should also increment the variable holding the
number of deposits.
withdraw: A method that accepts an argument for the amount of the withdrawal. The
method should subtract the argument from the balance. It should also increment the variable
holding the number of withdrawals.
calcInterest: A method that updates the balance by calculating the monthly interest
earned by the account, and adding this interest to the balance. This is performed by the following
formulas:
Monthly Interest Rate = (Annual Interest Rate/12)
Monthly Interest = Balance * Monthly Interest Rate
Balance = Balance + Monthly Interest
monthlyProcess: A method that subtracts the monthly service charges from the balance,
calls the calcInterest method, and then sets the variable les that hold the number of
withdrawals, number of deposits and monthly service charge to zero.
Next, design a SavingAccount class that is a subclass of the BankAccount class.
The SavingAccount class should have a status field to represent an active or inactive
account. If the balance of a savings account falls below$25, it becomes inactive. (The status field
could be a Boolean variable.) No more withdrawals can be made until the balance is raised above
$25, at which time the account becomes active again. The savings account class should have the
following methods:
withdraw: A method that determines whether the account is inactive before a withdrawal is
made. No withdrawal will be allowed if the account is not active. A withdrawal is then made by
calling the super-class version of the method.
deposit: A method that determines whether the account is inactive before a deposit is
made. If the account is inactive and the deposit brings the balance above $25, the account
becomes active again. The deposit is then made by calling the super-class version of the method.
monthlyProcess: Before the super-class method is called, this method checks the number
of withdrawals. If the number of withdrawals for the month is more than 4, a service charge of
$1 for each withdrawal above 4 is added to the super-class fields that holds the monthly service
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charges. (Don’t forget the check the account balance after the service charge is taken. If the
balance falls below $25, the account becomes inactive.)
Now write driver class to demo/test your code of
the BankAccount and SavingAccount. Display the result via the
standard output screen and file output as well.
The last part is to design and create a Graphical User Interface (GUI) to
test those method/behaviors of the BankAccount, SavingAccount
classes.
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