Question

Please help me to write a program in C++ with comments and to keep it simple as possible. Also, post the output please.

Thank you!

C++ File LO Using notepad or textpad, create a text file with the following data shown below, without the headings. Course Credits Grade Student ID Number Student Name Course Code Course 2333021 2333021 2333021 2574063 2574063 2574063 2574063 663628 2663628 2663628 2663628 2663628 BOKOW, R BOKOW, BOKOW,R FALLIN, D FALLIN, D FALLIN, D FALLIN, D KINGSLEY, M KINGSLEY, M KINGSLEY, M KINGSLEY, M KINGSLEY, M NS201 MG342 FA302 MK106 MA208 CM201 CP101 QA140 CM245 EQ521 MK341 CP101 Write a C+program that creates student grade reports. Save the report in a file called studentGrades.rpt. The grade report for each student should contain the student's name and ID number, a list of courses taken, the credits and grade for each course, and a semester grade point average (GPA). For example, this is the grade for the first student Student Name: BOKOW,R. Student ID Number 2333021 Course Credits Course Grade Course Code NS201 MG342 FA302 Total Semester Course Credits Completed: 7 Semester GPA: 4.0 The semester GPA is computed in two steps. First, each course grade is assigned a numerical value (A-4, B-3, C-2, D-1, F-0), and the sum of each course's grade value times the credits for each course is computed. The sum is then divided by the total number of credits taken during the semester

Here is input data:

2333021 BOKOW, R. NS201 3 A
2333021 BOKOW, R. MG342 3 A
2333021 BOKOW, R. FA302 1 A
2574063 FALLIN, D. MK106 3 C
2574063 FALLIN, D. MA208 3 B
2574063 FALLIN, D. CM201 3 C
2574063 FALLIN, D. CP101 2 B
2663628 KINGSLEY, M. QA140 3 A
2663628 KINGSLEY, M. CM245 3 B
2663628 KINGSLEY, M. EQ521 3 A
2663628 KINGSLEY, M. MK341 3 A
2663628 KINGSLEY, M. CP101 2 B

Answer 1

if you have any doubts, please give me comment...

#include<iostream>

#include<string>

#include<iomanip>

#include<fstream>

using namespace std;

int getPoints(char grade);

int main(){

//opening instance for opening file

ifstream in;

in.open("studentGrades.txt");

//if file is not open, the print error message terminate the program

if(in.fail()){

cout<<"Unable to open file"<<endl;

return -1;

}

//opening instance for write report into file

ofstream out;

out.open("studentGrades.rpt");

string fname, mInitial, courseName;

int credits, id, prev_id=-1, total_credits = 0;

char grade;

double gpa = 0.0;

//setting 1 decimal after cgpa

out<<setprecision(1)<<fixed;

//iterating over the file

while(!in.eof()){

//reading input from file

in>>id>>fname>> mInitial>>courseName>>credits>>grade;

//checking to whether print summary or course details, if student changes we will go with summary, not we will go with course details

if(id==prev_id){

out<<courseName<<"\t\t\t"<<credits<<"\t\t"<<grade<<endl;

//adding credits to total

total_credits += credits;

//getting student credits for grade

gpa += credits*getPoints(grade);

}

else{

if(prev_id!=-1){

//printint summary except first record

gpa = gpa/total_credits;

out<<endl<<"Total Semester Course Credits Completed: "<<total_credits<<endl;

out<<"Semester GPA: "<<gpa<<endl;

}

total_credits = 0;

gpa = credits*getPoints(grade);

//printing details of student into file

out<<"\nStudent Name: "<<fname<<" "<<mInitial<<endl;

out<<"Student ID Number: "<<id<<endl<<endl;

//printing course details into file

out<<"Course Code\tCourse Credits\tCourseGrade"<<endl;

out<<"------------------------------------------------------"<<endl;

out<<courseName<<"\t\t\t"<<credits<<"\t\t"<<grade<<endl;

total_credits += credits;

prev_id = id;

}

}

gpa = gpa/total_credits;

out<<"\nTotal Semester Course Credits Completed: "<<total_credits<<endl;

out<<"Semester GPA: "<<gpa<<endl;

//closing input and output files

in.close();

out.close();

return 0;

}

int getPoints(char grade){

if(grade=='A')

return 4;

else if(grade=='B')

return 3;

else if(grade=='C')

return 2;

else if(grade=='D')

return 1;

else

return 0;

}