Program 3: Create a program solution for the Body Mass Index Program Enhancement requirements (Programming exercise 10) on page 177 in the text book. Program Assumptions: 1. Use only the programming...

Program 3:

Create a program solution for the
Body Mass Index Program Enhancement
requirements (Programming exercise 10) on page 177 in the text book.

Program Assumptions:

1. Use only the programming capabilities taught in chapters 1 - 4. (This helps with standardized grading for all.)

2. Your program will run
once.

3. Your program will be the result of original work; not something found on the Internet, or given to you by someone else.

Primary Grading criteria:

1.

100% of your grade will come from your design documentation and program source code. (The Seven Step Problem Solving Methodology must be used.)

a.

Major Task List 5%

b.

Structure Chart 5%

c.

Word Analysis 5%

d.

Variable Chart 10%

e.

Pseudo code 20%

f.

Test Data 5%

g.

Desk Check 20%

h.

Actual C++ source code 20%

i.

Flowgorithm 10%

2. Your program
will require end user input
(weight and height).

3.
You must break down your solution into modular units. Main should contain only variables and calls to these modules:
getWeight, getHeight, setMass, setOverUnder, and showBMI.

4. Pass all variable arguments by
value.

5. You need to create three sets of test data that stress test the three possible fitness conditions.
Use 68” for the height in all three cases.

6. Your program must build and run as required without errors.

7. Pseudo Code and Source Code readability (by a fifth grader) is also a must:

a. Choose descriptive, not cryptic, variable names.

b. Comment to clarify what is going on as appropriate.

i. Section (block) comments guide.

ii. Line comments enlighten.

c. Use indentation to show structure clearly.

d. Use blank lines and spaces to increase readability.

e. At the top of your pseudo code and source code include these comments:

i. Program name

ii. Your names

iii. Program purpose

iv. Date created

v. Any programming assumptions you made in regards to the problem statement, for example: Assumed program will run once.

Submission Requirements:

1. Print and submit in class your hard-copy of the Eight Step Problem Solving Methodology Word document. Program3 must be submitted on time…no exceptions or excuses accepted.

2. At the end of your Eight Step Problem Solving Methodology Word document, copy and paste your C++ source code, and after that, a screen capture of your program’s output (see the sample you are supposed to bring to class each week for how to do this).

3. Required: Use Flowgorithm software to produce pseudo code to test your logic. Flowgorithm can also create your C++ source code.

4. Name your Flowgorithm file:
LastnameFirstInitial_Prog3.fprg;
for example,
BarberM_Prog2.fprg.

Upload it via the Assignment module for Program 3 in Canvas

5. Name your C++ source file:
LastnameFirstInitial_Prog3.cpp; for example,
BarberM_Prog2.cpp.

Upload it via the Assignment module for Program3 in Canvas
(that way I can run it inside the Integrated Development Environment if needed).

6. Make sure your Desk Check is on your
pseudo code, not your source code; and make sure you trace the value of ALL your variables and screen output. Otherwise, you have an invalid desk check with a major point loss.

Note:
Our
Blackboard Team Assist Forum
exists for students to ask questions when stuck. Everyone is encouraged to assist whenever possible. However, there is a fine line between assisting another student, and giving them the answer. If seeking assistance, you must be very specific when describing your problem…otherwise you probably will not get any answers. In addition, when answering, you may have to describe in general, or point to an appropriate reference, to avoid giving away code solutions. Use your best judgment. I will contact you via the Messaging system in Blackboard if you have stepped over the line.

Program 3 Eight Step Problem Solving Methodology

0. Problem Statement for Body Mass Index Program Enhancement:

Design a program that calculates a person’s body mass index (BMI). The BMI is often used to determine whether a person with a sedentary lifestyle is overweight or underweight for his or her height. A person’s BMI is calculated with the following formula:

BMI = (weight times 703) divided by height squared

In the formula, weight is measured in pounds and height is measured in inches. Enhance the program so it displays a message indicating whether the person has optimal weight, is underweight, or is overweight. A sedentary person’s weight is considered to be optimal if his or her BMI is between 18.5 and 25.0. If the BMI is less than 18.5, the person is considered to be underweight. If the BMI value is greater than 25.0, the person is considered to be overweight.

Avoid using magic numbers, create constants to represent the BMI factor of 703, BMI upper and lower limits.

1.

Major Task List
(Keep it abstract; focus on the “what” high level)

a. Determine health status using BMI

b. Display results

2.

Structure Chart
(Your blue print plan for your functions…who calls who)

3.

Word Analysis:
(Which nouns suggest a need for memory (a variable) and which verbs suggest a need for action (a function maybe).

Design a program that calculates a person’s body mass index (BMI). The BMI is often used to determine whether a person with a sedentary lifestyle is overweight or underweight for his or her height. A person’s BMI is calculated with the following formula:

BMI = (weight times 703) divided by height squared

In the formula, weight is measured in pounds and height is measured in inches. Enhance the program so it displays a message indicating whether the person has optimal weight, is underweight, or is overweight. A sedentary person’s weight is considered to be optimal if his or her BMI is between 18.5 and 25.0. If the BMI is less than 18.5, the person is considered to be underweight. If the BMI value is greater than 25.0, the person is considered to be overweight.

Avoid using magic numbers, create constants to represent the BMI factor of 703, BMI upper and lower limits.

Nouns:

Verbs:

Program
design

BMI calculates

Person
is used

Lifestyle
determines

Overweight is calculated

Underweight
times

Optimal weight
divided

Height
squared

Weight measured

Formula
displays

Pounds
has

Inches
is

Message
is considered

Value
is between

BMI_Factor is less than

Is greater than

create

4.

Variable Chart:
(Conversion of verbs into camelCase variable names…may not all be here).

Global Constants:

Constant real BMI_FACTOR = 703

Constant real MASS_LOWER_LIMIT = 18.5

Constant real MASS_UPPER_LIMIT = 25.0

5.

Pseudo Code
(use your Flowgorithm flow chart solution to produce pseudo code and C++ source code. Replace the given code here with yours.)

Note: Flowgorithm does not handle your global constants. Make them variables in the function that uses them.

//Declare global constants

Declare constant real BMI_FACTOR = 703

Declare constant real MASS_LOWER_LIMIT = 18.5

Declare constant real MASS_UPPER_LIMIT = 25.0

//Define Function Prototypes

Function real getWeight()

Function real getHeight()

Function real setMass(real, real)

Function string setOverUnder(real)

Function void showBMI(string, real)

Begin function main

// Declare variables

Declare real weight

Declare real height

Declare real BMI //Body Mass Index

Declare string healthStatus //Optimal, Under, or Over weight

// Get the user’s weight

Set weight = Call getWeight()

// Get the user’s height

Set height = Call getHeight()

// Calculate the user’s Body Mass Index

Set BMI = Call setMass(weight, height)

//Determine the user’s health status based on BMI

Set healthStatus = Call setOverUnder(BMI)

//Display the user’s BMI and health status

Call showBMI(healthStatus, BMI)

return 0

End function main

// Function Definition for getWeight

Function real getWeight ()

//Local variable declaration

Declare real totalWeight //To hold the user’s weight input from keyboard

//Prompt the user for weight

Display "Enter weight in pounds"

Get totalWeight //Takes the next real number from the input stream

return totalWeight //Sends value back to the caller

End function getWeight

// Function Definition for getHeight

Function real getHeight ()

//Local variable declaration

Declare real totalHeight //To hold the user’s height input from keyboard

//Prompt the user for height

Display "Enter height in inches"

Get totalheight //Takes the next real number from the input stream

return totalHeight //Sends value back to the caller

End function getHeight

//Function definition for setMass

Function real setMass (real localVarWeight, real localVarHeight)

//Local variable declaration

Declare real totalMass //To hold BMI

// Calculate user’s body mass index

Set totalMass = (______________________ * BMI_FACTOR) / (___________________ * localVarHeight)

return totalMass //Sends value back to the caller

End function setMass

//Functionn definition for setOverUnder, which determines user’s healthStatus base on BMI

Function string setOverUnder (real localVarMass)

//Declare local variable

Declare string wellBeing //To hold the user’s health status

// Determine user’s health status based on his/her BMI

if ____________ is less than ____________________ then

______________ = "underweight"

else if ______________________ is greater than _____________________ then

_______________= "overweight"

else

wellBeing = "optimal weight"

return wellBeing //Sends string value back to the caller

End function setOverUnder

//Function Definition for showBMI which displays the results

Function void showBMI (string localVarHealth, real localVarMass)

{

// Display user’s BMI

Display "Your BMI is ", __________________

// Display user’s health status

Display "You are ",_______________________

End function showBMI

6.

Test Data:

You will need three sets of test data (so you can do three desk check cases) for height and weight to cover the three possibilities in this problem.

7.

Desk Check:
(make sure ALL your functions, variables, and output (display) are recorded here)

Note: All required variables may not be here.

8.

Source Code & Screen Capture

[Your source code goes here, with your screen capture of program output after it]