Question

1) This exercise is about Inheritance (IS-A) Relationship.

A) First, draw the UML diagram for class Student and class ComputerSystemsStudent which are described below. Make sure to show all the members (member variables and member functions) of the classes on your UML diagram.

Save your UML diagram and also export it as a PNG.

B) Second, write a program that contains the following parts. Write each class interface and implementation, in a different .h and .cpp file, respectively.

a) Create a class called Student that has a name (string) and ID (int) as member variables.

b) Create a derived (child) class called ComputerSystemsStudent that inherits from class Student. In addition to what is inherited from class Student, class ComputerSystemsStudent has also atrack (string) as member variable. A track can take values such a "Programming", "Web Design", "Networking", etc.

c) Write a default constructor with all default parameters for both classes Student and ComputerSystemsStudent.

d) Write printInfo() function for both classs Student and class ComputerSystemsStudent. -- For full credit, class ComputerSystemsStudent class must override the printInfo of the base class Student.

e) Create a test program that includes an object of class Student and another object of class  ComputerSystemsStudent. Write test code print the information (name, if, track) of each object.

Save your .h and .cpp files in a folder and zip the entire folder for submission. Note that you need submit a total of five files for this part.

Answer 1

#include<iostream>
#include<string>
class Student{
   private:
       std::string name;
       int id;
   public:
       Student();
       Student(std::string name,int id);
       virtual void printInfo();

};

#include "student.h"
using namespace std;
Student::Student(){
   name="";
   id=0;
}
Student::Student(std::string name,int id){
   this->name=name;
   this->id=id;
}
void Student::printInfo(){
   cout<<"Name:"<<name<<endl<<"ID:"<<id<<endl;
}

#include<iostream>
#include<string>
class ComputerSystemsStudent : public Student{
   private:
       std::string track;
   public:
       ComputerSystemsStudent();
       ComputerSystemsStudent(std::string name,int id,std::string track);
       virtual void printInfo();
};

#include "ComputerSystemsStudent.h"
using namespace std;
ComputerSystemsStudent::ComputerSystemsStudent():Student(){
   track="";
}
ComputerSystemsStudent::ComputerSystemsStudent(std::string name,int id,std::string track):Student(name,id){
   this->track=track;
}
void ComputerSystemsStudent::printInfo(){
   Student::printInfo();
   cout<<"Track:"<<track<<endl;
}

#include<iostream>
#include "Student.cpp"
#include "ComputerSystemsStudent.cpp"
using namespace std;
int main(){
   Student *std;
   ComputerSystemsStudent cs("rolly",123,"programming");
   std=&cs;
   std->printInfo();//calling child class
   return 0;
  
};

UML: