Write a C++ program: About Overloading the Assignment Operator #include <iostrea

Question

Write a C++ program:
About Overloading the Assignment Operator

#include <iostream>
#include <string>

using namespace std;

// this class is implemented to hold the grades for an exam
class examType
{

private:
   int maxNoOfStudents; // this is the max size of the dynamic list
   int noOfStudents; // this is the current number of elements in the dynamic array
   double *grades; // grades is a pointer the the dynamic array

public:
   // constructor with parameters
   examType(int maxSize)
   {
       noOfStudents = 0;
       maxNoOfStudents = maxSize;
       grades = new double[maxNoOfStudents];
   }

   ~examType()
   {
       delete [] grades;
       grades = NULL;
      
   }

   // overload the assignment operator = to allow deep copy of the grades pointer!
   //...
  
   int getNoOfStudents()
   {
       return noOfStudents;
   }

   int getMaxNoOfStudents()
   {
       return maxNoOfStudents;
   }

   void append(double newGrade)
   {
       if (noOfStudents < maxNoOfStudents)
       {
               grades[noOfStudents] = newGrade;
               noOfStudents++;
       }
       else
       {
           cout << "Error: This list cannot get more elements. " << endl;
       }
   }

   double getGrade(int thePosition)
   {
       return grades[thePosition];
   }

   void print()
   {
       cout << "Number of Students in the Exam: " << noOfStudents << endl;
      
       for (int i=0; i < noOfStudents; i ++)
       {
           cout << grades[i] << " ";
       }
       cout << endl;
   }

};

int main()
{
  
   examType midterm(10);
   examType copyOfMidterm(4);
      
  
   // enter grades for midterm1
   midterm.append(50);
   midterm.append(100);
   midterm.append(80);
  
   // print results for midterm 1  
   midterm.print();
      
   copyOfMidterm = midterm; // by default assignment operator = does shallow copy here.
   // your job is to overload the assignment operator = in the class above, so that deep copying is done!

   copyOfMidterm.print();

  
   copyOfMidterm.append(55); // add a new grade to copyOf Midterm  
  
   // *****hint: if you overloaded the = operator correctly and did deep copying you
   // should see that the copyOfMidterm object prints the additional grade!
   midterm.print();
   copyOfMidterm.print();
  

   system("pause");
   return 0;
}

_____________Thank you for the help ______________________

Explanation / Answer

Add this after print method:

void print()
{
cout << "Number of Students in the Exam: " << noOfStudents << endl;
  
for (int i=0; i < noOfStudents; i ++)
{
cout << grades[i] << " ";
}
cout << endl;
}
void operator=(const examType &ex )
   {
maxNoOfStudents=ex.maxNoOfStudents;
noOfStudents=ex.noOfStudents;
grades=ex.grades;
}

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