DeVry COMP 220 iLab 3 Bank Account Lab Report Latest
DeVry COMP 220 iLab 3 Bank Account Lab Report Latest
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DeVry COMP 220 iLab 3 Bank Account Lab Report Latest
COMP 220 iLab 3 Bank Account Lab Report and Source Code
This lab introduces you to
writing a C++ program to implement the concept of class inheritance using
different types of bank accounts as a model. In this lab, you will create a
base class, called CBankAccount, and two additional classes (each derived from
CBankAccount), called CSavingsAccount and CCheckingAccount. You will then test
the operations of each class in function main() to simulate the transactions of
both a checking account and a savings account.
Deliverables
Submit a single Notepad file
containing the source code for all the files of the lab to the Dropbox for Week
3. Your source code should use proper indentation and be error free. Be sure
that your last name and the lab number are part of the file name: for example,
YourLastName_Lab3.txt.
Each program should include a
comment section that includes (minimally) your name, the lab and exercise
number, and a description of what the program accomplishes. Submit a lab report
(a Word document) containing the following information to the Dropbox for Week
3. Include your name and the lab or lab-exercise number. Specification: Include
a brief description of what the program accomplishes, including its input, key
processes, and output. Test Plan: Include a brief description of the method you
used to confirm that your program worked properly. If necessary, include a
clearly labeled table with test cases, predicted results, and actual results.
Summary and Conclusions: Includea summary of what the lab demonstrated and any
conclusions drawn from the testing of the lab program. Provide a UML diagram
showing the base and the derived class relationships, access specifiers, data
types, and function arguments. Answers to Lab Questions: Answer any and all of
the lab questions included in the lab steps.
Summary: Write a statement
summarizing your predicted and actual output. Identify and explain any
differences.
Conclusions: Write at least one
nontrivial paragraph that explains, in detail, either a significant problem you
had and how you solved it or, if you had no significant problems, something you
learned by doing the exercise.
Each lab exercise should have a
separate section in the lab-report document.
Your lab grade is based upon
the formatting of your source
code; the use of meaningful identifiers; the extent of internal documentation;
the degree to which an exercises’ specifications are met; and the completeness
of your lab report.
i L A B S T E P S
STEP 1: Create the Multifile
Project and the Main (Base) Class
Create a new project that
consists of the base class BankAccount.
The BankAccount class should
contain, at minimum, the following members.
It should contain data members
to store a bank customer’s balance and account number. These should be of
different and appropriate data types. It should have function members that do
the following: set the account number; return the account number; return the
account balance; deposit money into the account; and withdraw money from the
account.
STEP 2: Create the
CheckingAccount Class Derived From the BankAccount Class
The class CheckingAccount
should contain, at a minimum, the following members.
It should contain a data member
to keep track of the number of withdrawal transactions made on the
account.Whenever a withdrawal is made, this number should be incremented.
Override the base class, withdraw-money function, and add the capability to
deduct transaction fees from an account using the following guidelines. The
checking account is allowed three free transactions. For each successful withdrawal
transaction past the three free transactions, there will be a service fee of 50
cents per transaction. The service fee should be deducted from the account
balance at the time the transaction is made. If there are insufficient funds in
the account balance to cover the withdrawal plus the service fee, the
withdrawal should be denied. The function should return a value to indicate
whether the transaction succeeded or failed. Transaction fees should be
deducted only from successful transactions, but the transaction count should be
incremented in either case.
STEP 3: Create the
SavingsingAccount Class Derived From the BankAccount Class
The class CheckingAccount
should contain, at a minimum, the following members.
It should contain a data member
to hold the daily interest rate. The daily interest rate can be calculated from
a yearly interest rate by dividing the annual rate by 365. It should contain a
data member to keep track of the number of days since the last transaction or
balance inquiry. This should be updated using a random-number generator
(reference Lab 1) that will return a value representing the number of days
between 0 and 7, inclusive. We will assume that this bank is open every day of
the year. It should contain a data member to hold the interest earned since the
last transaction or balance inquiry. It should contain a function member to set
the annual interest rate. Utilize the base-class functions for both withdrawal
and deposit operations for the savings account. Override the base-class-balance
inquiry function to add calculating and adding interest to the account based on
the daily interest rate, the current balance of the account, and the number of
days since the last balance inquiry. This should be called only when a balance
inquiry is made, not when a deposit or withdrawal transaction or an account
number inquiry is made. If there are insufficient funds in the account balance
to cover a withdrawal, the withdrawal should be denied. The number of days
since the last transaction or balance inquiry and the interest calculations
should still be made. A value should be returned to indicate whether a
withdrawal transaction succeeded or failed. It should contain a function member
to return the interest earned since the last transaction or balance inquiry. It
should contain a function member to return the number of days since the last
transaction or balance inquiry.
STEP 4: Test Program Operation
All data-input and data-display
operations (cin and cout) should be done in the function main() test program.
The test program should create one checking account and one savings account
with initial balances of $100 each using the functions defined in the class
definitions. The test program should also assign a unique, five-digit account
number to each account and assign an annual interest rate of 3% for the savings
account. The test program should then display a menu that allows the user to
select which option is to be performed on which account, including the
following. Make a deposit and specify the amount to a selected or an entered
account. Make a withdrawal and specify the amount to a selected or an entered
account. Return the balance of a selected or an entered account. For deposit
transactions, withdrawal transactions, and balance inquiries, the updated
balance and any fees charged or interest earned should also be displayed. For
the savings account, the number of days since last transaction should be
displayed. Exit the program. Each account operation should display the account
number and the account type.
Lab Questions
Please answer all the lab
questions in the text file that is to be turned into the Dropbox. You are not
required to copy the question text into your document, but all answers should
be listed with the question number they answer.
Were any base-class functions
called or overloaded in either of the derived classes? If so, list which class
and which function, and explain why they were either called or overloaded. Were
any derived-class functions not explicitly called by the test program? If so,
list which class and function, and explain why this was done. Which access
attribute was used for each of the classes derived from the base class? Why was
this access attribute chosen?
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