CMIS 242 Project 2 ATM Program
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CMIS 242 Project 2 ATM Program
The second project involves
writing a program that implements an ATM machine. The interface to the program
should be a GUI that looks similar to the following:
The program should consist of three classes. The first class should define the
GUI and should be hand-coded and not generated by a GUI generator. In addition
to the main method and a constructor to build the GUI, event handlers will be
needed to handle each of the four buttons shown above. When the Withdraw button
is clicked, several checks must be made. The first check is to ensure the value
in the text field is numeric. Next a check must be made to ensure the amount is
in increments of $20. At that point an attempt to withdraw the funds is made
from the account selected by the radio buttons. The attempt might result in an
exception being thrown for insufficient funds, If any of those three errors
occur a JOptionPane window should be displayed explaining the error. Otherwise
a window should be displayed confirming that the withdrawal has succeeded. When
the Deposit button is clicked the only necessary check is to ensure that the
amount input in the textfield is numeric. Clicking the Transfer button signifies
transferring funds to the selected account from the other account. The checks
needed are to confirm that the amount supplied is numeric and that there are
sufficient funds in the account from which the funds are being transferred.
Clicking the Balance button will cause a JOptionPanewindow to be displayed
showing the current balance in the selected account.
The
main class must contain two Account objects, one for the checking account and
another for the savings account.
The second class is Account.It must have a constructor plus a method that
corresponds to each of the four buttons in the GUI. It must also incorporate
logic to deduct a service charge of $1.50 when more than four total withdrawals
are made from either account. Note that this means, for example, if two
withdrawals are made from the checking and two from the savings, any withdrawal
from either account thereafter incurs the service charge. The method that
performs the withdrawals must throw anInsufficientFunds exception whenever an
attempt is made to withdraw more funds than are available in the account. Note
that when service charges apply, there must also be sufficient funds to pay for
that charge.
The third class is
InsufficientFunds, which is a user defined checked exception.
Be
sure to follow good programming style, which means making all instance and
class variables private, naming all constants and avoiding the duplication of
code. Furthermore you must select enough scenarios to completely test the
program.
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