Example Class?

I'm tring to make a program that takes information for CD sales from a local music store. It takes the infor and then calculates total sales and then displays them. I'm having no luck with it.

Could anybody please help? I mean does anyone have a similar program already made, so I can look over it for correct syntax and maybe some code snips?!?!?

I'm desperate!

NOMAD:eek: :confused:

Or in fact I'll post what I have and if some bored soul wants to fix it that would be even better! thanks!

Code:

---

#include <iostream>
using std :: ostream;
using std :: istream;
using std :: basic_istream;
using std :: basic_ostream;
using std :: cout;
using std :: cin;

#include <iomanip>
using std :: ios;

#include <string>
using namespace std;

enum CDCatagory { Show, Pop, Rock, Classical, Country, Religious, International, Gothic, Other };

//template <class CD>
class CD {
        unsigned long int UPC;
        string Artist;
        string Title;
        unsigned short int PlayTime;
        CDCatagory Category;
        float Price;
        unsigned int Sold;
        CD* CDprt;
public:
        CD();
        ~CD() {
                delete [] CDPtr;
        };
        CD(unsigned long int id);
        CD(CD & c);

        bool operator == (const  CD c);
        bool operator < (const CD c);
        CD operator = (const CD c);
               
        friend istream & operator >> (istream & i, CD & c)
        {
                int iTempCategory;

                cout << "Enter UPC: ";
                i >> c.UPC;
                i.ignore(1);

                cout << "Enter Artist: ";
                i.getline(c.Artist, 40, "\n");

                cout << "Enter Title: ";
                i.getline(c.Title, 40, "\n");

                cout << "Enter Playing Time: ";
                i >> c.PlayTime;
                i.ignore(1);

                cout << "Show, Pop, Rock, Classical, Country, Religious, International, Gothic Rock, Other";
                cout << "Enter Category (1-9): ";
                i >> iTempCategory;

                switch (iTempCategory) {
                        case 1:                c.Category = Show;
                                                break;
                        case 2:                c.Category = Pop;
                                                break;
                        case 3:                c.Category = Rock;
                                                break;
                        case 4:                c.Category = Classical;
                                                break;
                        case 5:                c.Category = Country;
                                                break;
                        case 6:                c.Category = Religious;
                                                break;
                        case 7:                c.Category = International;
                                                break;
                        case 8:                c.Category = Gothic;
                                                break;

                        default :        c.Category = Other;
                                                break;
                };

                cout << "Enter Retail Price: ";
                i >> float(c.Price);
                i.ignore(1);

                cout << "Enter Unit Sales: ";
                i >> c.Sold;
        };
        friend ostream & operator << (ostream & o, const CD & c)
        {
                o << c.UPC << "  "
                  << c.Title << "  "
                  << c.Artist << "  "
                  << c.Category  << "  "
                  << c.PlayTime << "  "
                  << c.Price << "  "
                  << c.Sold;
        };
};

CD<CD>::CD(int i) {
        CD(i).Artist = "NO ARTIST";
        CD(i).Title = "NO TITLE";
        CD(i).UPC = 0;
        CD(i).Price = "0.00";
        CD(i).Sold = 0;
        CD(i).PlayTime = 0.0;
        CD(i).Category = Other;
};

CD<CD>::~CD() {
        Artisit = "";
        Title = "NO TITLE";
        UPC = 0;
        Price = "0.00";
        Sold = 0;
        PlayTime = 0.0;
        Category = Other;
};

CVector CVector:: operator+ (CVector param)

CD CD:: operator= (CD c) {

        CD c2;
       
        c2.UPC = c.UPC;
        c2.Artist = c.Artist;
        c2.Title = c.Title;
        c2.PlayTime = c.PlayTime;
        c2.Category = c.Category;
        c2.Sold = c.Sold;
        c2.Price = c.Price;

        return (c2);
};

bool CD:: operator== (CD c1, CD c2) {
        if (c1.UPC == c2.UPC) {
                return true;
        }
        else
                return false;
};

bool CD:: operator< (CD c1, CD c2) {
        if (c1.UPC < c2.UPC) {
                return true;
        }
        else
                return false;
};

template <class CD>
void BubbleSort(itemtype values[], int start, int end) {
        for (int index = end, index > start, index--) {
                CD temp;
                if (values[index] < values[index-1]) {
                        temp = values[index];
                        values[index] = values[index-1];
                        values[index-1] = temp;
                };
        };       
        return 0;
};

void PrintHeader() {
        cout << "                                Tower Records Store"
                << "                        Monthly Report for May 2001"
                << "                          Prepared by "
                << endl;
        cout << "                                                                                Unit        Sold"
                << endl;
        cout << "UPC#        Title        Artist        Label        Time        Price        Sold        Sales"
                << endl;
        return 0;
}

---

NOMAD

Anything would help, if you see an error could you please tell me. I can't find a place that explains this. Not even my textbook given a detailed anough explanation to classes!

NOMAD:mad:

I don't have the time to read all that code, just one little thing:
using namespace std;
is the same as a
using std::xxx
declaration for every element of std.
You don't need all those using std::* declarations since you have the using namepsace std andyway.

Maybe I'll take a look later.