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# CSE 1325-001 Homework #3 Using Classes solved

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## Description

In this homework, you will create a class that stores a list of transactions and computes the average
transaction for a given month. The user must input the name of the month and the transactions into the
terminal.

## The Transaction_List Class

First you will create two C++ files called abc1234_Transaction_List.h and abc1234_Transaction_List.cpp.
Below is a UML class diagram that shows the basic design of the Transaction_List class.

This class contains a list of transactions for a certain month. Each transaction is represented a double in
the vector transactions. The constructor sets the month equal to the m and the num_transactions to 0.
get_name returns the name of the month. add_transaction adds a new transaction to the list of
transactions and 1 to num_transactions. average_transaction returns the average transaction for that
month. If there are no transactions, then this should return 0.

## Testing the Transaction_List

Next you will test your Transaction_List class by creating a new C++ file called abc1234_test.cpp, which
consists of just a main method. The main function must be able to do the following three tests.
 Test #1
o Create a Transaction_List object named “May” and add 4 transactions: 150, 225.3, 78.9,
and 523.99
o Get the Transaction_List’s name. If the month is not “May”, display a useful error
message to the terminal (cout).
o Compute the average transaction for the month. If the average is not 244.5475, display
a useful error message to the terminal (cout).

 Test #2
o Create another Transaction_List called “March” and add 4 transactions: 150, 225.3,
78.9, and 523.99
o Get the Transaction_List’s name. If the month is not “May”, display a useful error
message to the terminal (cout).
o Compute the average transaction for the month. If the average is not 244.5475, display
a useful error message to the terminal (cout).
 Test #3
o Create a Transaction_List object named “May” and add 4 transactions: 150, 225.8, 78.9,
and 523.99
o Get the Transaction_List’s name. If the month is not “May”, display a useful error
message to the terminal (cout).

o Compute the average transaction for the month. If the average is not 244.5475, display
a useful error message to the terminal (cout).
Take a screenshot of your terminal that shows the output from all 3 tests. Name this screenshot
abc1234_test.png. If you have multiple screenshots, name them abc1234_test_1.png,
abc1234_test_2.png, etc.

## The main program

Third, write one more C++ file called abc1234_main.cpp. This main program consists of a main function
that should do the following: (you may have to write more loops then what is listed below, or more
functions then just main)
 Create a list (vector) of Transaction_Lists
 Prompt the user for the name of a month and take it in as input.
 Create a Transaction_List object with the name you just received as input.
 Create a loop that askes for a transaction and takes it in as input.
o If the input is -999, exit the loop.

o If the input is not -999, add it to the list of transactions.
 When the loop is terminated, add this month to the list of Transaction_Lists.
 Ask the user if there is another month he/she want to put in (Y/N)
o If yes, go back to the second bullet point.
o If no, print out the name of each Transaction_List (the month name) and the
average, each on a different line..
Take a screenshot of your code running in terminal. Name this screenshot abc1234_main.png. If you
have multiple screenshots, name them abc1234_main_1.png, abc1234_main_2.png. etc.
When grading this, you do not know how many months the GTA will put in, so make sure your code can
handle different number of months.

## Makefile

You are REQUIRED to provide a simple makefile that can build and execute your test code given the
command “make test”, and build and execute your main given the command “make”. The sample
course code from lecture 5 is a good example of a makefile to use for the homework.
You will put all relevant files for the full credit portion of the homework in a folder called full_credit.

## Bonus 1 (5 pts)

a separate folder called bonus_1. Change your Transaction_List Class so the double num_transactions is
not mentioned in your code (delete all references to it). Find some way to still compute the average
over the number of transactions submitted.
Once that is complete, make a new makefile for this bonus. Run your main function take screen shots of
your code, using the same naming conventions as mention above. Place those screen shots in the
bonus_1 folder.

## Bonus 2 (15 pts)

For this, you will be modifying the provided UML diagram in Umbrello. The provided UML class diagram
is called Transaction_List.xmi. You are to do the following the UML diagram (double clicking the class
diagram opens the properties window):
 Include a private vector called person. This list will correspond to the list of transactions
and will represent who rang up each transaction.
 Modify the add_transaction() function to take in two arguments, one called high, one called p.
The add day function will now add the input to the list of highs and name of the p into the list of
person.

 Next, add a method called bonus. This function will return the name of the person who rang up
the most transactions in that month. Since that person rang up the most transactions, that
person will bet a bonus.
You will save this UML diagram to a new folder called bonus_2.
Copy your abc1234_Transaction_List.h, abc1234_Transaction_List.cpp, and abc1234_main.cpp file from
your full credit directory into bonus_2.
Next you will modify your Transaction_List class to reflect any changes made to the UML diagram.
Lastly, modify your abc1234_main.cpp program to allow the user to input both the transactions and the
names. If the transaction is still -999, quit the loop. When done taking input, output the name of the
month, the average transaction, and who got the bonus, each on a different line. Take screen shots of
your code working, and place those screen shots the bonus_2 folder. Follow the same naming
conventions as above for the screenshots.

## Deliverables

You will submit your code and screenshots via Blackboard. You will upload a zip file, named
“abc1234_HW3.zip”, contain 1 folder (3 if you did all the bonus)
 full_credit folder
o abc1234_Transaction_List.h
o abc1234_Transaction_List.cpp
o abc1234_test.cpp
o abc1234_main.cpp
o abc1234_test.png (or multiple if multiple screenshots were taken)
o abc1234_main.png (or multiple if multiple screenshots were taken)
o makefile
o Instructions for compiling and running (either in comments via blackboard or in a
 bonus_1 folder
o abc1234_Transaction_List.h
o abc1234_Transaction_List.cpp
o abc1234_main.cpp
o abc1234_main.png (or multiple if multiple screenshots were taken)
o makefile
o Instructions for compiling and running (either in comments via blackboard or in a