Book Store program using Classes and Exception Handling

// Practical 3:
// @author xCircle (Pranav)

#include<bits/stdc++.h>
using namespace std;

class Publication
{
    public:
    string title;
    float price;

    void update()
    {
        cout<<"Enter the Title of the book : ";
        cin>>title;
        cout<<"\nEnter the price of : ";
        cin>>price;
        if(price==0)
        {
            throw int(price);
        }
    }

    void publish()
    {
        cout<<"\nBook:- "<<title<<"\nPrice:- Rs"<<price;
    }
};

class Book : public Publication
{
    public:
    int pageCount;

    void getData()
    {
        cout<<"\nEnter the No. of pages : ";
        cin>>pageCount;
        if(pageCount==0)
        {
            throw pageCount;
        }
    }

    void putData()
    {
        cout<<"\nPages:- "<<pageCount;
    }
};

class Tape : public Publication
{
    public:
    float playTime;

    void getData()
    {
        cout<<"\nEnter the play time in minuites : ";
        cin>>playTime;
        if(playTime==0)
        {
            throw int(playTime);
        }
    }

    void putData()
    {
        cout<<"\nPlay Time:- "<<playTime<<"min";
    }
};

int main()
{
    Book b1;
    Tape t1;
    try{
        b1.update();
        b1.getData();
        t1.getData();
    }
    catch(int e)
    {
        cout<<"*Error* \nException Caught";
        b1.title="0";
        b1.price=0;
        b1.pageCount=0;
        t1.playTime=0;
    }
    b1.publish();
    b1.putData();
    t1.putData();
}