BIT$2400$

Assignment A$01$

Painting a room $2\mathrm{.}0$

A friend of yours created a program in C language for calculating amount of paint needed for

painting a room and how much it would cost to apply multiple coats of paint to that room. Your

friend didn$$t use any functions in their code. In this assignment, you will encapsulate the code into a

class and methods as needed.

The Problem

The main goal of this assignment is to test your understanding of the basics of C$++$ that are covered

up to this point of the semester $($classes$,$ access specifiers and methods$).$

a$)$ You have to update the provided code $$BIT$2400\_$A$01\_$start.cpp$$ file to use classes and

methods. To do so$,$ you update the provided solution from C language to use C$++$

elements instead.

b$)$ Use the following class as your starting point. You are not allowed to change the access

specifiers of any these variables. However, you can add methods and other members as

needed.

$$ The reason for this restriction is to test your understanding of how to use$/$access public

and private member variables outside the class, i$.$e$.$ in main$().$

$$ If you create any functions, they have to be member methods of the provided class.

c$)$ Create a class constructor that will set the values of $($Height$,$ Width and Length$)$ based on

user input. It will also calculate and set the room$$s area based on these values. $(2$ points$)$

d$)$ Create a class destructor that will be used to reset the values of all member variables to

zeros $(1$ point$)$

e$)$ In the original assignment, the price of a can of paint is fixed $(35$$$),$ in this assignment you

have to prompt the user to enter the price of a can of paint. $(1$ point$)$

f$)$ Create a method $($member function$)$ that will be used to calculate the price of a coat of

paint based on the number of coats $(1,2,$ or $3$ coats$)$ and the price of a can of paint. $(2$

points$)$

Below is the marking

scheme that the TA will

follow while marking

A$01$

Commented $[$RS$1]$: If they modify the access specifiers of

any of the provided members, they will receive a zero

Commented $[$RS$2]$: If they create all their methods as

regular functions that are not methods of the class, they will

get $50\%$ of the final grade

Dr$.$ Rami Sabouni BIT$2400/$ITEC$2400$ Summer $2024$

g$)$ Since we have private members of the class, you cannot access them directly, therefore,

you need to use setters and getters. $(2$ points$)$

h$)$ For outputting the amount of paint needed, number of cans and price of each coat of

paint, use a loop to show the results for $1,2,$ and $3$ coats of paint. $(1$ point$)$

i$)$ Since we didn$$t cover cin and cout at this point, you must use printf$()$ for outputting to the

console and scanf$()$ for retrieving user input $(1$ point$)$

$$ No calls to printf$()$ or scanf$()$ should be used in any of the methods. All calls have to

be made in the main$()$

Sample output:

Commented $[$RS$3]$: If they use cin or cout, then they will get

$50\%$ of the final grade

Commented $[$RS$4]$: They will receive a $25\%$ deduction if

they use scanf$()$ or printf$()$ in methods

Dr$.$ Rami Sabouni BIT$2400/$ITEC$2400$ Summer $2024$

Assignment requirements

$$ Name your project $$firstname$\_$lastname$\_$A$01$

$$ Divide your solution into multiple files $($main$.$cpp$,$ PaintJob.cpp and PaintJob.h$).$

$$ Move the $.$cpp and $.$h files into the folder create above.

$$ Don$$t use any global variables

$$ You have to properly assign data types based on what is needed $($example unsigned char if

you variable$$s maximum value is $230$ and minimum is $0)$

$$ This assignment is to test your understanding of classes, methods, access specifiers, setters and

getters

o You have to use the provided class

o You have to use setters and getters

o You have to use methods

$$ You should add comments to your code

$$ Don$$t use anything that we haven$$t discussed up to this point in the material.

$$ You must use CLion to implement your solution.

$$ There might be similar ideas available online: if you use any code that is available online

you will receive a zero.

$$ You have to solve the assignment on your own without the help of others.

$$ Make sure to submit only $.$cpp and $.$h files and nothing else. Submitting other files can result in

a zero on the tutorial.

$$ Only accepted extension is $".$zip"

$$ Once you are done solving the assignment Follow these instructions to prepare you solution to

be submitted. Failure to follow the instructions will result in a $25\%$ deduction regardless of

whether your solution works $100\%$ or not:

No email submissions are allowed. You will receive a zero if you miss the deadline or submit