Gradebook arrays

[DrGooves]

My version of a gradebook that gets students average and converts to letter grade.

// Headers
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;

// Global Variables
const int NAMES = 5;
const int TESTS = 4;
const int GRADES = 5;


// Function Prototypes
double getAverage(double[], int);
char getGrade(double);

int main()
{
// Local variables
string student[NAMES];
double student0Scores[TESTS];
double student1Scores[TESTS];
double student2Scores[TESTS];
double student3Scores[TESTS];
double student4Scores[TESTS];
double average;
char Grade;

cout << "Get 5 Students names then 4 test averages for each student assigned to a letter grade.\n";
cout << "\n";
cout << "\n";

//Get names of students
cout << "Please enter the names of five students: ";
cout << "\n";
cout << "\n";


cout << "Name of first student: ";
getline(cin, student[0]);

cout << "Name of second student: ";
getline(cin, student[1]);

cout << "Name of third student: ";
getline(cin, student[2]);

cout << "Name of fourth student: ";
getline(cin, student[3]);

cout << "Name of fifth student: ";
getline(cin, student[4]);


cout << "\n";
cout << "\n";
cout << "Now enter the testscores for each of the five students";
cout << "\n";
cout << "\n";

//Enter the test scores
for (int count = 0; count < TESTS; count++)
{
cout << "Please enter test score" << (count + 1) << " for " << student[0] << ": ";
cin >> student0Scores[count];

while (student0Scores[count] < 0 || student0Scores[count] > 100)
{
cout << "Please enter a score between 0-100.\n"; //Input validation (only scores allowed between 0-100)
cin >> student0Scores[count];
}
}
cout << "\n";

for (int count = 0; count < TESTS; count++)
{
cout << "Please enter test score" << (count + 1) << " for " << student[1] << ": ";
cin >> student1Scores[count];

while (student1Scores[count] < 0 || student1Scores[count] > 100)
{
cout << "Please enter a score between 0-100.\n";
cin >> student1Scores[count];
}
}

cout << "\n";
for (int count = 0; count < TESTS; count++)
{
cout << "Please enter test score" << (count + 1) << " for " << student[2] << ": ";
cin >> student2Scores[count];

while (student2Scores[count] < 0 || student2Scores[count] > 100)
{
cout << "Please enter a score between 0-100.\n";
cin >> student2Scores[count];
}
}

cout << "\n";
for (int count = 0; count < TESTS; count++)
{
cout << "Please enter test score" << (count+1) << " for " << student[3] << ": ";
cin >> student3Scores[count];

while (student3Scores[count] < 0 || student3Scores[count] > 100)
{
cout << "Please enter a score between 0-100.\n";
cin >> student3Scores[count];
}
}

cout << "\n";
for (int count = 0; count < TESTS; count++)
{
cout << "Please enter test score" << (count + 1) << "for" << student[4] << ": ";
cin >> student4Scores[count];

while (student4Scores[count] < 0 || student4Scores[count] > 100)
{
cout << "Please enter a score between 0-100.\n";
cin >> student4Scores[count];
}
}

//Calling the getAverage function

average = getAverage(student0Scores, TESTS);
Grade = getGrade(average);
cout << "\n";
cout << "The average test score for " << student[0] << " is: " << average << " and the lettergrade is: " << Grade;
cout << "\n";

average = getAverage(student1Scores, TESTS);
Grade = getGrade(average);
cout << "\n";
cout << "The average test score for " << student[1] << " is: " << average << " and the lettergrade is: " << Grade;
cout << "\n";

average = getAverage(student2Scores, TESTS);
Grade = getGrade(average);
cout << "\n";
cout << "The average test score for " << student[2] << " is: " << average << " and the lettergrade is: " << Grade;
cout << "\n";

average = getAverage(student3Scores, TESTS);
Grade = getGrade(average);
cout << "\n";
cout << "The average test score for " << student[3] << " is: " << average << " and the lettergrade is: " << Grade;
cout << "\n";

average = getAverage(student4Scores, TESTS);
Grade = getGrade(average);
cout << "\n";
cout << "The average test score for " << student[4] << " is: " << average << " and the lettergrade is: " << Grade;
cout << "\n";

cout << endl;

system("PAUSE");



return 0;
}

double getAverage(double scores[], int TESTS) //Get average function
{
double avg, total=0;
int count;

for (count = 0; count < TESTS; count++)
{
total += scores[count];
}

avg = total / TESTS;
return avg;
}

char getGrade(double avg) //Get the letter grade based on the average.
{
const int A_SCORE = 90,
B_SCORE = 80,
C_SCORE = 70,
D_SCORE = 60;

char lettergrade;


if (avg >= A_SCORE)
lettergrade = 'A';

else
if (avg >= B_SCORE)
lettergrade = 'B';

else
if (avg >= C_SCORE)
lettergrade = 'C';

else
if (avg >= D_SCORE)
lettergrade = 'D';
else
if (avg < D_SCORE)
lettergrade = 'F';

return lettergrade;

}

[TheIdeasMan]

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