productclassextraction.cpp

C++ sample code, for the book: C++ black book, including templates, exceptional handling.

#include <iostream>
#include <string>
using namespace std;

class product 
{     
    int number;        
public:         
    string name;              
    int get_number(){return number;}
    void set_number(int n){number = n;}
    product(string text, int count);
    friend ostream &operator<<(ostream &stream, product p);
    friend istream &operator>>(istream &stream, product &p);
};

product::product(string text, int count)
{
    name = text;
    number = count;
}

istream &operator>>(istream &stream, product &p)
{
    cin >> p.name >> p.number;
    return stream;
}

ostream &operator<<(ostream &stream, product p)
{
    cout << "Number of " << p.name << ": " << p.number << endl;
    return stream;
}

main()
{
    product oranges("", 0);

    cout << "Please enter the product name and number: ";

    cin >> oranges;

    cout << oranges << endl;

    return 0;
}