simple program using classes (OOP) (67)

#include<iostream>

using namespace std;

class Teacher

{

protected:

string theacher_name,address;

int age;

public:

void inputdata(string x,string y,int z)

{

theacher_name=x;

address=y;

age=z;

}

void displaydata();

};

void Teacher::displaydata()

{

cout<<"the name of the teacher is:"<<theacher_name<<endl;

cout<<"the address of the teacher is:"<<address<<endl;

cout<<"the age of the teacher is:"<<age<<endl;

}

class Author 

{

protected:

string author_name,address;

int written_books;

public:

void inputdata(string x,string y,int z)

{

author_name=x;

address=y;

written_books=z;

}

void displaydata();

};

void Author::displaydata()

{

cout<<"the name of the author is:"<<author_name<<endl;

cout<<"the address of the author is:"<<address<<endl;

cout<<"number  of books written by author are:"<<written_books<<endl;

}

class Scholar:public Teacher,public Author

{

private:

string Scholar_name;

public:

void inputdata(string x)

{

Scholar_name=x;

}

void displaydata()

{

cout<<"the scholar name is:"<<Scholar_name<<endl;

}

};

int main()

{

Scholar obj1;

obj1.Teacher::inputdata("hamza","isakhel",18);

obj1.Teacher::displaydata();

obj1.Author::inputdata("hamza"," mainwali",45);

obj1.Author::displaydata();

obj1.inputdata("ali");

obj1.displaydata();

}