Program 5 (A)

[Josh33cod]

#include
#include
#include
#include

using namespace std;

int main()
{
// Declare variables to manipulate data
string firstName, lastName;
double testScore;
char grade = ' ';
double sum = 0;
int count = 0;

// Declare stream variables
ifstream inFile;
ofstream outFile;

// Open input file
inFile.open("C:\Users\joshu\OneDrive\Desktop\CSC118")
("Ch5_stData.txt");
if (!inFile)
{
    cout << "Cannot open input file. Program terminates!" << endl;
    return 1;
}

// Open output file
outFile.open("Ch5_stData.out");
outFile << fixed << showpoint << setprecision(2);

// Read first student data
inFile >> firstName >> lastName >> testScore;

while (inFile)
{
    sum += testScore; // Update sum
    count++; // Increment count

    // Determine the grade
    switch (static_cast<int>(testScore) / 10)
    {
        case 10:
        case 9:
            grade = 'A';
            break;
        case 8:
            grade = 'B';
            break;
        case 7:
            grade = 'C';
            break;
        case 6:
            grade = 'D';
            break;
        default:
            grade = 'F';
            break;
    }

    // Output student record to file
    outFile << left << setw(12) << firstName
            << setw(12) << lastName
            << right << setw(6) << testScore
            << setw(4) << grade << endl;

    // Read next student data
    inFile >> firstName >> lastName >> testScore;
}

outFile << endl;

// Output class average
if (count != 0)
    outFile << "Class Average: " << sum / count << endl;
else
    outFile << "No data." << endl;

inFile.close();
outFile.close();

return 0;

}