Question

Give an example of inheritance, you must have a parent and child and test program with at least one variable in each and setters and getters and constructors. The test program must test all the methods.

Answer 1

#include <iostream>
using namespace std;

class Person // base class
{
   private:
   string firstName;
   string lastName;
   string honorific;
  
   public:

//constructor
   Person(string firstName,string lastName,string honorific)
   {
       this->firstName = firstName;
       this->lastName = lastName;
       this->honorific = honorific;
   }

//set and get methods
   void setFirstName(string firstName)
   {
       this->firstName = firstName;
   }
   string getFirstName()
   {
       return firstName;
   }
   void setLastName(string lastName)
   {
       this->lastName = lastName;
   }
   string getLastName()
   {
       return lastName;
   }
   void setHonorific(string honorific)
   {
           this->honorific = honorific;
   }
   string getHonorific()
   {
       return honorific;
   }
   void display()
   {
       cout<<honorific<<" "<<firstName<<" "<<lastName;
   }
   ~Person() // destructor
   {
       cout<<"\ndestructor of person";
   }
  
};

class Student : public Person // derived class
{
   private:
   string courseName;
  
   public:
   Student(string firstName,string lastName,string honorific,string courseName):Person(firstName,lastName,honorific)
   {
       this->courseName = courseName;
   }
   void setCourseName(string courseName)
   {
       this->courseName = courseName;
   }
   string getCourseName()
   {
       return courseName;
   }
   void display()
   {
       Person::display();
       cout<<"\nStudying in course : "<<courseName;
   }
   ~Student()
   {
       cout<<"\ndestructor of student";
   }
};
int main() {
  
   Student st("Harris","Johnson","Dr.","Masters of Cardiology");
  
   st.display();
  
   return 0;
}

Output:

Dr. Harris Johnson
Studying in course : Masters of Cardiology
destructor of student
destructor of person

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