C++

main.cpp

#include #include #include

#include "Student.h" #include "Course.h"

using namespace std;

int main() { ifstream inFile; cout << "Welcome to my Course Roster Program " << endl; while (true) { Course course = initCourse(); inFile.open("Students.txt"); if (!inFile) { cout << "File did not open! Program Exiting!!" << endl; return 0; } readStudent(inFile, course); inFile.close();

cout << "Here is the course roster: " << endl; printRoster(course); cout << endl;

char lastName[20];

cout << "Enter the last name of the student to drop : "; cin.getline(lastName, 20);

if (strcmp(lastName, "exit") == 0) { cout << " Thank you for using my Student Roster program!!" << endl; break; }

dropStudent(lastName, course);

cout << " Here is the course roster: " << endl; printRoster(course); cout << endl;

Student highestGPAStudent = findStudentHighestGPA(course);

cout << "The student with the highest GPA: " << endl; printStd(highestGPAStudent);

cout << " Thank you for using my Student Roster program " << endl; }

return 0; } Course.cpp

//The implementation file for Course.h //It loads students from a text file. #include #include

#include "Course.h" #include "Student.h" using namespace std;

//initiaizes a course variable and returns it. The array is empty //and the number of students is set to 0. Course initCourse() { Course course; course.numStudents = 0; return course; }

//reads a student from the file and calls AddStudent void readStudent(ifstream& inFile, Course& course) { char line[100]; while (inFile.getline(line, sizeof(line))) { char* firstName = strtok(line, ";"); char* lastName = strtok(nullptr, ";"); double gpa = atof(strtok(nullptr, ";")); Student student = initStudent(firstName, lastName, gpa); addStudent(student, course); } }

//adds a student to the roster, and increment count //modify this function to add the student sorted by name //do not use any sorting functions. //See this example in zyBooks Section 14.7 [https://learn.zybooks.com/zybook/PCCCS161BSpring23/chapter/14/section/7] void addStudent(Student student, Course &course) { course.roster[course.numStudents].gpa = student.gpa; strcpy(course.roster[course.numStudents].last, student.last); strcpy(course.roster[course.numStudents].first, student.first); course.numStudents++;

}

//prints a whole Course roster calling student print. //use a for loop and print all the students //must call the printStd function in Student.h void printRoster(Course course) { for (int i = 0; i < course.numStudents; i++) { cout << course.roster[i].first << ";" << course.roster[i].last << ";" << course.roster[i].gpa << endl; } }

void dropStudent(char *lastname, Course &course); Student findStudentHighestGPA(Course course); */ void dropStudent(char* lastname, Course& course) { for (int i = 0; i < course.numStudents; i++) { if (strcasecmp(lastname, course.roster[i].last) == 0) { // Shift the remaining students in the roster for (int j = i; j < course.numStudents - 1; j++) { course.roster[j] = course.roster[j + 1]; } course.numStudents--; cout << "Student '" << lastname << "' successfully dropped from the roster." << endl; return; } } cout << "Student '" << lastname << "' not found in the roster." << endl; } // Function to find the student with the highest GPA in the roster Student findStudentHighestGPA(Course course) { Student highestGPAStudent = course.roster[0]; for (int i = 1; i < course.numStudents; i++) { if (course.roster[i].gpa > highestGPAStudent.gpa) { highestGPAStudent = course.roster[i]; } } return highestGPAStudent; } Course.h

#ifndef COURSE_H_ #define COURSE_H_

#include "Student.h" #include

using namespace std;

struct Course { Student roster[20]; int numStudents; };

// Function Prototypes Course initCourse(); void readStudent(ifstream& inFile, Course& course); void addStudent(Student student, Course& course); void dropStudent(char* lastname, Course& course); Student findStudentHighestGPA(Course course); void printRoster(Course course);

#endif

Student.cpp

//The implementation file for student.h #include #include

#include "Student.h"

using namespace std;

//creates a student, initializes with information and returns it. Student initStudent(char *first, char *last, double gpa) { Student student; strcpy(student.first, first); strcpy(student.last, last); student.gpa = gpa; return student; }

//returns the last name of the student in the given char array through the pointer. void getLastName(char *studentName, Student student) { strcpy(studentName, student.last); }

//returns the student's gpa double getGPA(Student student) { return student.gpa; }

//prints a single student information void printStd(Student student) { cout << student.first << ";" << student.last << ";" << student.gpa << endl; }

Student.h

//The student struct #ifndef STUDENT_H_ #define STUDENT_H_

struct Student { char first[20]; char last[20]; double gpa; };

//Function Prototypes Student initStudent(char *first, char *last, double gpa); void getLastName(char *studentName, Student student); double getGPA(Student student); void printStd(Student student);

#endif

Students.txt

Henry;Nguyen;3.5 Brenda;Stern;2.0 Lynda;Robison;3.2 Sonya;King;3.9 Gayathri;Iyer;3.5 Glen;Sasek;3.7 Priya;Goel;3.8

this is example of how it should look

First sample run without modifying addStudent:

Welcome to my Course Roster Program

Here is the course roster:

Henry;Nguyen;3.5

Brenda;Stern;2

Lynda;Robison;3.2

Sonya;King;3.9

Gayathri;Iyer;3.5

Glen;Sasek;3.7

Priya;Goel;3.8

Enter the last name of the student to drop:King

Here is the course roster:

Henry;Nguyen;3.5

Brenda;Stern;2

Lynda;Robison;3.2

Gayathri;Iyer;3.5

Glen;Sasek;3.7

Priya;Goel;3.8

The student with the highest GPA:

Priya;Goel;3.8

Thank you for using my Student Roster program!!

Second sample run after modifying addStudent:

Welcome to my Course Roster Program

Here is the course roster:

Priya;Goel;3.8

Gayathri;Iyer;3.5

Sonya;King;3.9

Henry;Nguyen;3.5

Lynda;Robison;3.2

Glen;Sasek;3.7

Brenda;Stern;2

Enter the last name of the student to drop:Iyer

Here is the course roster:

Priya;Goel;3.8

Sonya;King;3.9

Henry;Nguyen;3.5

Lynda;Robison;3.2

Glen;Sasek;3.7

Brenda;Stern;2

The student with the highest GPA:

Sonya;King;3.9

Thank you for using my Student Roster program!!

i cannot get it to print the Second sample run after modifying addStudent:

Priya;Goel;3.8

Gayathri;Iyer;3.5

Sonya;King;3.9

Henry;Nguyen;3.5

Lynda;Robison;3.2

Glen;Sasek;3.7

Brenda;Stern;2

this how my program runs,

Welcome to my Course Roster Program

Here is the course roster: Henry;Nguyen;3.5 Brenda;Stern;2 Lynda;Robison;3.2 Sonya;King;3.9 Gayathri;Iyer;3.5 Glen;Sasek;3.7 Priya;Goel;3.8

Enter the last name of the student to drop : KING Student 'KING' successfully dropped from the roster.

Here is the course roster: Henry;Nguyen;3.5 Brenda;Stern;2 Lynda;Robison;3.2 Gayathri;Iyer;3.5 Glen;Sasek;3.7 Priya;Goel;3.8

The student with the highest GPA: Priya;Goel;3.8

Thank you for using my Student Roster program

Here is the course roster: Henry;Nguyen;3.5 Brenda;Stern;2 Lynda;Robison;3.2 Sonya;King;3.9 Gayathri;Iyer;3.5 Glen;Sasek;3.7 Priya;Goel;3.8

Enter the last name of the student to drop :

can someone fix it so it looks like the given example

• void addStudent(Student student, Course &course);
  • Here you will modify the existing addStudent function. Right now the function adds students to the end of the list.

Here is the course roster:

Henry;Nguyen;3.5

Brenda;Stern;2

Lynda;Robison;3.2

Sonya;King;3.9

Gayathri;Iyer;3.5

Glen;Sasek;3.7

Priya;Goel;3.8

• Modify the function so it adds students sorted by lastname - you should not use any sorting algorithm. Insert the students in the right position, by finding the position and shifting the other students.
• Once you have modified this function, rerun the program to make sure it reads from the file and inserts students in the right position. Your output should look like this:

Priya;Goel;3.8

Gayathri;Iyer;3.5

Sonya;King;3.9

Henry;Nguyen;3.5

Lynda;Robison;3.2

Glen;Sasek;3.7

Brenda;Stern;2