Lab7 - Pointers

#include <iostream>
#include <string>
#include <iomanip>

using namespace std;

class Publication{
protected:
    string title;
    double price;
public:
    Publication(): title("N/A"), price(0.0) {}
    Publication(string a, double b): title(a), price(b) {}
    ~Publication() {}

    void read() {
        cout << left << setw(22) << "Enter Title: ";
        cin.sync();
        getline(cin, title);
        cin.sync();

        cout << left << setw(22) << "Enter Price: ";
        cin >> price;
    }

    void show() {
        cout << left << setw(22) << "Title: " << title << endl;
        cout << left << setw(22) << "Price: " << price << endl;
    }
};



class Publication2: public Publication{
protected:
    int dd, mm, yy;
public:
    Publication2(): dd(0), mm(0), yy(0) { Publication();}
    Publication2(string a, double b, int dd, int mm, int yy): dd(dd), mm(mm), yy(yy) { Publication(a, b);}
    ~Publication2() {}

    void read() {
        Publication::read();
        cout << left << setw(22) << "Enter Release Date: ";
        cin >> dd >> mm >> yy;
    }

    void show() {
        Publication::show();
        cout << left << setw(22) << "Realease Date: " << dd << " " << mm << " " << yy << endl;
    }
};



class Sale{
protected:
    float amount[3];
public:
    Sale(): amount({0,0,0}) {}
    Sale(float a, float b, float c): amount({a,b,c}) {}
    ~Sale() {}

    void read() {
        cout << left << setw(22) << "Enter Sales: ";
        for (int i = 0; i < 3; i++)
            cin >> amount[i];
    }

    void show() {
        cout << left << setw(22) << "Sales: ";
        for (int i = 0; i < 3; i++)
            cout << amount[i] << " ";
        cout << endl;
    }
};



class Book: public Publication2, public Sale{
private:
    int pages;
public:
    Book(): pages(0) { Publication2(); Sale();}
    Book(string a, double b, int c, int dd, int mm, int yy, float x, float y, float z): pages(c) { Publication2(a, b, dd, mm, yy); Sale(x, y, z);}
    ~Book() {}

    void read() {
        Publication2::read();
        Sale::read();
        cout << left << setw(22) << "Enter the Number of Pages: ";
        cin >> pages;
    }

    void show() {
        Publication2::show();
        Sale::show();
        cout << left << setw(22) << "Number of Pages: " << pages << endl;
    }
};



class Tape: public Publication2, public Sale{
private:
    double duration;
public:
    Tape(): duration(0) { Publication2(); Sale();}
    Tape(string a, double b, double c, int dd, int mm, int yy, float x, float y, float z): duration(c) { Publication2(a, b, dd, mm, yy); Sale(x, y, z);}
    ~Tape() {}

    void read() {
        Publication2::read();
        Sale::read();
        cout << left << setw(22) << "Enter the Duration: ";
        cin >> duration;
    }

    void show() {
        Publication2::show();
        Sale::show();
        cout << left << setw(22) << "Duration: " << duration << endl;
    }
};



int main() {
    Publication P;
    P.read();
    cout << endl;
    P.show();
    cout << endl << endl;

    Publication2 P2;
    P2.read();
    cout << endl;
    P2.show();
    cout << endl << endl;

    Book B;
    B.read();
    cout << endl;
    B.show();
    cout << endl << endl;

    Tape T;
    T.read();
    cout << endl;
    T.show();
    cout << endl << endl;

    return 0;
}