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BatJuan72 (6)
Write a program that reads students’ names followed by their test scores. The program should output each student’s name followed by the test scores and the relevant grade. It should also find and print the highest test score and the name of the students having the highest test score.

Student data should be stored in a struct variable of type studentType, which has four components: studentFName and studentLName of type string, testScore of type int (testScore is between 0 and 100), and grade of type char. Suppose that the class has 20 students. Use an array of 20 components of type studentType. Your program must contain at least the following functions:

A function to read the students’ data into the array.
A function to assign the relevant grade to each student.
A function to find the highest test score.
A function to print the names of the students having the highest test score.
Your program must output each student’s name in this form: last name followed by a comma, followed by a space, followed by the first name; the name must be left justified. Moreover, other than declaring the variables and opening the input and output files, the function main should only be a collection of function calls.

Your program should accept no input and save the output to Ch9_Ex2Out.txt.
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  #include <iostream>
#include <string>
#include <fstream>
#include <iomanip>


using namespace std;

const int NO_OR_STUDENTS = 20;

//struct
struct studentType
{
	string studentFName;
	string studentLName;
	int testScore;
	char grade;
};


void getData(ifstream& inFile, studentType sList[], int listSize);
void calculateGrade(studentType sList[], int listSize);
int highestScore(const studentType sList[], int listSize);
void printResult(ofstream& outFile, const studentType sList[], int listSize);

int main()
{
	ifstream inData;
	ofstream outData;
	studentType studentList[NO_OR_STUDENTS];
	inData.open("Ch9_Ex2Data.txt");
	if (!inData)
	{
		cout << "The input file does not exist. Program terminates!"
			<< endl;
		system("PAUSE");
		return 1;
	}//endif


	outData.open("Ch9_Ex2Out.txt");
	if (!outData)
	{
		cout << "Cannot open the output file. Program terminates!"
			<< endl;
		system("PAUSE");
		return 1;
	}//endif


	getData(inData, studentList, NO_OR_STUDENTS);
	calculateGrade(studentList, NO_OR_STUDENTS);
	printResult(outData, studentList, NO_OR_STUDENTS);
	system("PAUSE");
	return 0;
}
void getData(ifstream& inFile, studentType sList[], int listSize)
{
	for (int i = 0; i < listSize; i++)
		inFile >> sList[i].studentFName >> sList[i].studentLName
		>> sList[i].testScore;
}
void calculateGrade(studentType sList[], int listSize)
{
	int score;
	for (int i = 0; i < listSize; i++)
		if (score >= 90)
			sList[i].grade = 'A';
		else if (score >= 80)
			sList[i].grade = 'B';
		else if (score >= 70)
			sList[i].grade = 'C';
		else if (score >= 60)
			sList[i].grade = 'D';
		else
			sList[i].grade = 'F';

		
}
int highestScore(const studentType sList[], int listSize)
{
	int score[100];
	int highscore = score[0];
	for (int i = 0; i < listSize; i++) 
	{

		if (score[i] > highscore)
		{
			highscore = score[i];
		}


	}
	void printResult(ofstream& outFile, const studentType sList[], int listSize)
    {
		int maxScore = highestScore(sList, listSize);
		int i;
		outFile << setw(15) << "Student Name "
			<< setw(10) << "Test Score"
			<< setw(7) << "Grade" << endl;
		for (i = 1; i < listSize; i++)
			outFile << left << setw(25)
			<< sList[i].studentLName + ", " + sList[i].studentFName
			<< right << " " << setw(5) << sList[i].testScore
			<< setw(6) << " " << sList[i].grade << endl;
		outFile << endl << "Highest Test Score: " << maxScore << endl;
		outFile << "Students having the highest test score:" << endl;
		for (i = 1; i < listSize; i++)
			if (sList[i].testScore == maxScore)
				outFile << sList[i].studentLName + ", " + sList[i].studentFName << endl;
    
}
Handy Andy (5051)
Hello BatJuan72,

I was looking over your post and wondering if you had a question or problem. Or are you expecting for people to guess at what you need?

If you compile the program it would give you an idea why lines 94 and 95 are indented as they are.

Line 9 defines "NO_OR_STUDENTS". Did you mean "NO_OF_STUDENTS"? Also this is a global variable with file scope, so you do not need to pass it to the functions. They already have access to it.

Since the function "getData" is the only place that you use the "ifstream" I would define it there and not pass it to the function.

A tip that will benefit you is to include the input file, or a fair sample, so everyone is using the same information and not guessing at what the file looks like.

Hope that helps,

Andy

Edit: typo
Last edited on
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