COMP 122 Lab 6 Lab Report and Source Code .pdf
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COMP 122 Lab 6 Lab Report and Source Code
COMP 122 Week 6 iLab
You are to design a program that will allow some number of grades (up to a max of 100) to be
input by the user. After the data has been collected, your program should calculate and
output the mean and median of the collected data, as well as the sorted grade information.
Use an integer constant of 100 to specify the number of elements in the array you will use to
collect the grade information. Do not use any global variables in your program. Declare any
arrays you need in your main function and pass the arrays as needed into the functions
described below. The main function is the only function permitted to do any output to the
console!!! Do not do cout operations inside of any other function.
Your data collection loop in your main function must allow the user to enter less than 100
grades. It must also make sure that the user does not try to enter more than 100 grades. Each
data value entered should be checked to make sure it is between 0 and 100. Any other value
entered should be considered invalid and ignored (ie. not counted as a valid input and not
stored in an array). Once the data is collected, the array and the number of grades collected
must be passed to a function called mean. The mean function must loop through the values in
the array, summing them together.
The result of the function is the sum divided by the number of grades collected. The result
must be returned from the mean function to the main function, where is it output in an
appropriate manner (two digits after the decimal point). The main function should then pass
the array and the number of grades collected to the median function. The median of a set of
numbers is the number in the set where half the numbers are above it and half the numbers
are below it. In order to find the median, this function will need to sort the original data. The
simplest sorting procedure is called bubble sorting. The following pseudocode describes
bubble sorting for X valid array elements.
for ; outer < x;="" outer++="">
for ; inner < x-1;="" inner++="">
if array[inner] > array[inner+1]
After the data has been sorted, the median value can be found. If the array has an odd
number of elements the median is the value of the middle element (Hint: arraySize/2 is the
middle element). If the array has an even number of elements then the median is the average
of the middle two elements (Hint: arraySize/2 and ( arraySize/2) - 1 are the two middle
elements). The median value should be returned by the median function. The main routine
should output the median value in an appropriate manner. The main routine should also
output the sorted array with 5 grades per line.
Carefully develop test cases for your program. Most of your test cases do not need to contain
lots of values. Make sure to include incorrect inputs such as negative grade values. Calculate
what your mean and median values should be for your test cases. Document your test cases
in a Word document. Run your test cases with your program to see if your program generates
the expected output. If not, troubleshoot your program and fix the problem. When your
program executes a test case correctly, take a screen shot of the program output and paste it
into your Word document to prove that your test case executed correctly with your program.
Make sure that your code is properly formatted! You also need to make sure you include a
comment block for each function which documents the purpose, inputs, and outputs of each
Create a program using Visual C++.Net. Make sure to capture a screen shot of your program
running your test cases! The best way to do this is to click on the console window you want to
capture and then press the Alt and PrintScreen keys at the same time. Then paste your
captured screen image into your Word document. Your Word document should contain your
test cases, the screen shots documenting your test cases, followed by a copy of your source
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