Swapnil

#include <iostream>
#include<string>
using namespace std;
class publication
{
protected:
string title;
float price;

public:
publication()
{
    title=" ";
    price=0.0;
    
    }
    publication(string t,float p)
    {
        title=t;
        price=p;
        
        }
       
        

};
class book : public publication
{
    int pagecount;
    public:
    book()
    {
        pagecount=0;
        
    }
    //After : base class constructor is called
    book(string t,float p,int pc):publication(t,p)
    {
        
        pagecount=pc;
        
    }
 
 void display()
 {
    
      cout<<"title :"<<title<<endl;
            cout<<"Price: "<<price<<endl;
   
      cout<<"Pagecount :"<<pagecount<<endl;
     
    }
    
};

class CD : public publication
{
float time;
public:
CD()
{
time=0.0;

    }
    //After : base class constructor is called
    CD(string t,float p,float tim):publication(t,p)
    {
        
        time=tim;
        
    }
 
 void display()
 {
     cout<<"title :"<<title<<endl;
            cout<<"Price: "<<price<<endl;
   
      cout<<"time in minutes :"<<time<<endl;
     
    }
    
};

int main()
{
cout<<endl<<"Book data"<<endl;
book b("C++",230,300);
b.display();
cout<<endl<<"CD Data"<<endl;
CD c("programming",100,120.5);
c.display();
return 0;
}