Program to Create Database and Retrieve Information (C++)
An Educational institution whishes to maintain a data base of its employees. The database is divided into a No. of classes. Specify all the classes & define functions to create the database and retrieve individual information as and when required.
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Source Code
#include<stdio.h>
#include<conio.h>
#include<iostream>
using namespace std;
class staff
{
private: char name[20];
int code;
public: void getstaff()
{
cout<<"Enter name: ";
cin>>name;
cout<<"Enter code: ";
cin>>code;
}
void showstaff()
{
cout<<"name: "<<name<<endl;
cout<<"code: "<<code<<endl;
}
};
class teacher: public staff
{
private: char subject[20], publication[10];
public: void getteacher()
{
getstaff();
cout<<"Enter subject: ";
cin>>subject;
cout<<"Enter publication: ";
cin>>publication;
}
void showteacher()
{
showstaff();
cout<<endl<<"Subject : "<<subject<<endl<<"publication: "<<publication<<endl;
}
};
class typist: public staff
{
private:float speed;
public: void gettypist()
{
getstaff();
cout<<"Enter speed: ";
cin>>speed;
}
void showtypist()
{
showstaff();
cout<<"speed: "<<speed<<endl;
}
};
class regular: public typist
{
private: int salary;
public: void getregular()
{
gettypist();
cout<<"Enter salary: ";
cin>>salary;
}
void showregular()
{
showtypist();
cout<<"salary: "<<salary<<endl;
}
};
class casual: public typist
{
private: int wage;
public: void getcasual()
{
gettypist();
cout<<"Enter daily wage: ";
cin>>wage;
}
void showcasual()
{
showtypist();
cout<<"wage: "<<wage<<endl;
}
};
class officer: public staff
{
private: char grade;
public: void getofficer()
{
getstaff();
cout<<"Enter grade: ";
cin>>grade;
}
void showofficer()
{
showstaff();
cout<<"grade: "<<grade<<endl;
}
};
int main()
{
teacher t;
regular r;
casual c;
officer o;
cout<<"Enter data: "<<endl;
cout<<"Teacher :"<<endl;
t.getteacher();
cout<<endl<<"regular typist: "<<endl;
r.getregular();
cout<<endl<<"casual typist: "<<endl;
c.getcasual();
cout<<endl<<"Officer : "<<endl;
o.getofficer();
cout<<endl<<endl<<"Display Database: "<<endl<<endl;
t.showteacher();
r.showregular();
c.showcasual();
o.showofficer();
getch();
}
Output
