Download A lab report on C++ inheritance, with different codes on the various types of inheritance and more Lab Reports Object Oriented Programming in PDF only on Docsity!
Reet Shinde
Div: A
Batch: A
PA- 33
Experiment 4
Aim: Write a program in C++ to implement database of people with different
professions e,g engineer, doctor, student, laborer etc. using the concept of
different types of inheritances.
CODE
1) Single Inheritance #include #include using namespace std; class Doctor { protected: string name; string speciality; public: void info() { cout << "Name and speciality " << endl; cin>> name >> speciality; } }; class Database : public Doctor {
protected: int srno; public: void display() { cout << " sr no to get from database: "<< endl; cin>>srno; } }; int main() { Database a; a.display(); a.Doctor::info(); return 0; }
class doctor { protected: string name_d; int age_d; public: void get_d() { cout<<"Enter name and age "<<endl; cin>>name_d>>age_d; } void display() { cout<<"Name:"<<name_d<<"Age:"<<age_d<<endl; } }; class engineer { protected: string name_e; int age_e; public: void get_e() { cout<<"Enter name and age "<<endl; cin>>name_e>>age_e; } }; class database:public doctor,public engineer { public: void display() { cout<<name_d<<":"<<age_d<<"\t"<<name_e<<":"<<age_e; } }; int main() { database r;
r.get_d(); r.get_e(); r.display(); } OUTPUT
public: void display() { cout<<name_d<<"\t"<<"\t"<<age_d<<endl<<course<<"\t"<<salary; } }; int main() { database r; r.get_d(); r.get_spez(); r.display(); return 0; }
OUTPUT
void get_n() { cout<<"Enter name and age of nurse under "<<name_d<<endl; cin>>name_n>>age_n; } }; class janitor: public doctor { protected: string name_j; int age_j; public: void get_j(){ cout<<"Enter name and age of janitor under "<<name_d<<endl; } void display() { cout<<name_j<<":"<<age_j; } }; int main() { janitor r; r.get_j(); r.get_d(); nurse n; n.get_n(); n.get_d(); n.doctor::display(); } OUTPUT
5) Hybrid Inheritance #include using namespace std; class Science { protected: string stream; int idno; public: void get_s(){ cout<<"Enter field and id"<<endl; cin>>stream>>idno; } }; class doctor:public Science { protected: string name_d; int age_d; public: void get_d() { cout<<"Enter name and age of id"<<idno<<endl; cin>>name_d>>age_d; } }; class engineer { protected: string name_e; int age_e; public: void get_e() { cout<<"Enter name and age "<<endl; cin>>name_e>>age_e; } }; class database:public doctor,public engineer
