Rewrite the addStudent function in C++ so that the Course class in the attached file to throw a runtime_error if the number of students exceeds the capacity. (please include complete written c++ code).thanks ```cpp#include #include "Course.h"using namespace std;Course::Course(const string& courseName, int capacity){ numberOfStudents = 0; this->courseName = courseName; this->capacity = capacity; students = new string[capacity];}Course::~Course(){ delete[] students;}string Course::getCourseName() const{ return courseName;}void Course::addStudent(const string& name){ students[numberOfStudents] = name; numberOfStudents++;}void Course::dropStudent(const string& name){ // Left as an exercise}string* Course::getStudents() const{ return students;}int Course::getNumberOfStudents() const{ return numberOfStudents;}```### Explanation:This C++ code is a basic implementation of a `Course` class, which manages a simple list of students enrolled in a course. Below is an overview of its structure and functionality:1. **Includes and Namespace:** - Includes the necessary input/output stream header ``. - Includes a header file `"Course.h"` that likely contains the class declaration. - Uses the standard namespace with `using namespace std;`.2. **Constructor (`Course::Course`):** - Initializes a course with a name and a capacity for students. - Sets the initial number of students to zero. - Allocates memory for storing student names based on the course capacity.3. **Destructor (`Course::~Course`):** - Frees the allocated memory for the students' list.4. **Method `getCourseName`:** - Returns the name of the course.5. **Method `addStudent`:** - Adds a student to the course by their name. - Increments the count of enrolled students.6. **Method `dropStudent`:** - Placeholder for removing a student by name; actual implementation is left as an exercise.7. **Method `getStudents`:** - Returns a pointer to the array of student names.8. **Method `getNumberOfStudents`:** - Returns the current number of enrolled students.This example demonstrates basic memory management and object-oriented programming concepts in C++.

Introduction C++ Class: Within C++, a class is just a user-defined type or data structure that's also denoted by the keyword class and also has data & functions as its members. Access to all these members is regulated through one of the three access specifiers, private, protected, and also public. The C++ class's members are usually private by default.Source Code of program: main.cpp: #include<iostream> #include "Course.h" int main(){ string course_name, name; int cap; cout<<"Enter the course name: "; cin>>course_name; cout<<"Enter the course capacity: "; cin>>cap; Course *c = new Course(course_name, cap); for(int i=0 ;i<cap; ++i) { cout<<"Enter the student name: "; cin>>name; if(name=="exit" || name=="Exit") break; c->add_student(name); } c->print(); return 0; } Course.cpp: #include <iostream> #include "Course.h" using namespace std; Course::Course(const string& course_name, int capacity) { number_of_students = 0; this->course_name = course_name; this->capacity = capacity; students = new string[capacity]; } Course::~Course() { delete[] students; } string Course::get_course_name() const { return course_name; } void Course::add_student(const string& name) { students[number_of_students] = name; number_of_students++; cout<<"The student is added "<<endl; } string * Course::get_students() const { return students; } int Course::get_number_of_students() const { return number_of_students; } void Course::print() const {cout << "The course information\n" << course_name <<endl; for(int i=0 ; i<number_of_students ; ++i) cout<<students[i]<<endl;} Course.h: #ifndef COURSE_H #define COURSE_H #include <string> using namespace std; class Course {public: // creates a course with the specified name &//the most students it is permitted to have. Course (const string & course_name, int capacity); // Destructor, destory the dynamic array ~Course (); // Returns the course name. string get_course_name ()const; // Adding a new student into the course. void add_student (const string & name); // Returning array of students for course. string * get_students ()const; // returns the course's enrollment figures.int get_number_of_students () const;// Prints the course information. void print () const;private: // The name of the course string course_name; //a variety of students who enrol in the course. The array's pointer is called students. string * students; // The number of students (default: 0).int number_of_students; // the most students that can enrol in the course.int capacity;};#endifScreenshot of Source Code: main.cpp: Course.cpp: Course.h:Screenshot of output: