Question

1. Write the header and the implementation files (.h and .cpp separatelu) for a class called Course, and a simple program to test it, according to the following specifications:                   

1. Your class has 3 member data: an integer pointer that will be used to create a dynamic variable to represent the number of students, an integer pointer that will be used to create a dynamic array representing students’ ids, and a double pointer that will be used to create a dynamic array to represent the GPAs of each student.

2. Your class has the following member functions:

       

1. a constructor with an int parameter representing the number of students; the constructor creates the dynamic variable and sets it to the int parameter, creates the two dynamic arrays and sets everything to zero.

2. a function which reads in all the ids and the GPAs into the appropriate arrays.

3. a function called print_info which, for each student, does all of the

                following:

                It prints the student’s id and GPA. If the student’s GPA is greater than or equal to 3.8, it prints “an honor student”.

Answer 1

#include<bits/stdc++.h> 
using namespace std;

class Course                   // creation of class
{
    
    int *num_of_stud;            // int pointer to hold no of students
    int* id = NULL;              // int pointer to hold the array of ids
    double* gpa = NULL;          // int pointer to hold the grades array
    
    Course(int n)                // constructor which initializes all variables and arrays
    {
        *num_of_stud = n;
        id = new int[n];
        gpa = new double[n];
        
        for(int i=0; i<n; i++)
        {
            id[i] = 0;
            gpa[i] = 0.0;
        }
    }
    
    void read_data()                  // function to read the data 
    {
        for(int i=0; i<*num_of_stud; i++)
        {
            cin>>id[i];
            cin>>gpa[i];
        }
    }
    
    void print_info()                      // function to print the data according to the question
    {
         for(int i=0; i<*num_of_stud; i++)
        {
            cout<<"ID of student "<<i+1<<" : "<<id[i]<<endl;
            cout<<"Grade : "<<gpa[i]<<endl;
            
            if(gpa > 3.8)
            cout<<"an honour student"<<endl;
        }
    }
};

int main()
{
  // write your code inside main() accordingly 
}

here is the code for the above problem

created the required class

declared all necessary pointer variables and arrays

defined each asked function as well

can tell me if you want me to write something in main() as well