Write a program that reads student names from a file followed by their test scores. The program should then output each student's name followed by the test score and the relevant grade. It should also print the highest test score and the name of students having the highest test scores.
Write a program that reads student names from a file followed by their test scores. The program should then output each student’s name followed by the test score and the relevant grade. It should also print the highest test score and the name of students having the highest test scores.
Specifically, write a code to:
•Read from the file (“student.dat”) and store in a struct variable of type studentType, which has four components: studentFName, and studentLName of type string, testScore of type int (between the range of 0 and 100), and grade of type char.
•Suppose the class has 20 students. Use any array of 20 components of type studenetType.
•Your program should contain the definition of the following functions:
1.A function to read the students’ data into the array
void getData(ifstream& inFile, studentType sList[], int listSize);
2.A function to assign the relevant grade to each student
void calculateGrade(studentType sList[], int listSize);
3.A function to find the highest test score
int highestScore(const studentType sList[], int listSize);
4.A function to print the name of the students having the highest test score.
void printResult(const studentType sList[], int listSize);
student.dat
Joe Doe
90
Susan F. Smith
95.5
Sam Grover
78
Diane C. Phelps
100
John Franklin
85
Derrick Myers
59
I'm using Dev-C++ to compile and run.
Here is my code, I can't get it to work properly with the 95.5 and middle initial in the name.
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//Include libraries
#include <iostream>
#include <string>
#include <fstream>
#include <iomanip>
//Use std namespace
using namespace std;
//Define a structure "studentType"
struct studentType
{
//Declare variables
string studentFName;
string studentMName;
string studentLName;
int testScore;
char grade;
};
/*Function Prototypes*/
void lgetData(ifstream& inFile, studentType sList[], int listSize);
void lcalculateGrade(studentType sList[], int listSize);
int lhighestScore(const studentType sList[], int listSize);
void lprintResult(const studentType sList[], int listSize);
//Define main function
int main()
{
//Define in variable
ifstream in;
//Open student file
in.open("student.dat");
//If file can't be opened
if(in.fail())
{
//Display message
cout<<"file did not open please check it\n";
//Pause console window
system("pause");
//Exit
system("exit");
}
//Define array
studentType sList[30];
//Call "lgetData()"
lgetData(in,sList,6);
//Call "lcalculateGrade()"
lcalculateGrade(sList,6);
//Call "lprintResult()"
lprintResult(sList,6);
//Close
in.close();
//Pause console window
system("pause");
//Return 0
return 0;
}
//Define lgetData()
void lgetData(ifstream& inFile,studentType sList[],int listSize)
{
//Declare variables
int n=0;
//Loop until list size
while(n<listSize)
{
//Store data
inFile>>sList[n].studentLName>>sList[n].studentMName>>sList[n].studentFName>>sList[n].testScore;
//Increment counter
n++;
}
}
//Define lcalculateGrade()
void lcalculateGrade(studentType sList[], int listSize)
{
//Declare variable
int i;
//Loop until length
for(i=0;i<listSize;i++)
//If score less than 60
if (sList[i].testScore<60)
//Set grade
sList[i].grade='F';
//If score less than 70
else if (sList[i].testScore<70)
//Set grade
sList[i].grade='D';
//If score less than 80
else if (sList[i].testScore<80)
//Set grade
sList[i].grade='C';
//If score less than 90
else if(sList[i].testScore<90)
//Set grade
sList[i].grade='B';
//If score greater than 90
else
//Set grade
sList[i].grade='A';
}
//Define lhighestScore()
int lhighestScore(const studentType sList[], int listSize)
{
//Declare variables
int high=0,i;
//Loop until length
for(i=0;i<listSize;i++)
//If high value is less than score
if (high < sList[i].testScore )
//Set score as high
high=sList[i].testScore;
//Return high
return high;
}
//Define lprintResult()
void lprintResult(const studentType sList[], int listSize)
{
//Display result
cout<<left<<setw(30)<<"Student Name"<<right<<setw(20)<<"TestScore"<<right<<setw(7)<<"Grade"<<endl;
//Declare variables
string name;
int high,i;
//Loop until length
for(i=0;i<listSize;i++)
{
//Set name
name=sList[i].studentLName+", "sList[i].studentMName", "+sList[i].studentFName;
//Display message
cout<<left<<setw(30)<<name<<right<<setw(20)<<sList[i].testScore<<right<<setw(7)<<sList[i].grade<<endl;
}
//Set new line
cout<<endl;
//Call lhighestScore()
high=lhighestScore(sList, listSize);
//Display message
cout<<"Highest Test Score: "<<high<<endl;
//Display result
cout<<"Students having the highest test score: "<<endl;
//Loop until length
for (int i=0; i < listSize; i++)
//If score is high
if (sList[i].testScore==high )
//Display student name
cout<<sList[i].studentLName<<", "<<sList[i].studentMName<<", "<<sList[i].studentFName<<endl;
}
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