[prog] Re: C++

[wolf]

To everyone who helped me out, thank you! here's a version that works 
for anyone
curious who followed the adventure along : ) mind you, it still needs a 
few improvements
but it works : )

Thanks!!



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

class cd {
public:
         cd();
         cd(const cd&);
         cd(string artist, string title, string genre, int year);
         void showCD();
         void setCD(string cartist, string ctitle, string cgenre, int 
iyear);
         string getartist();
         string gettitle();
         string getgenre();
         int getyear();


private:
         string artist;
         string title;
         int year;
         string genre;

         };

//*********

cd::cd()
{
         artist = "";
         title = "";
         genre = "";
         year = 0;
}

cd::cd (string sartist, string stitle, string sgenre, int iyear) {
         // create a new cd
         artist = sartist;
         title = stitle;
         genre = sgenre;
         year = iyear;

}

//*********

void cd::showCD() {
         // show a cd
         cout << artist << " " << title << " " << genre << " " << year <<
endl;
}

//*********

string cd::getartist()
{
         return artist;
}


string cd::gettitle()
{
         return title;
}


string cd::getgenre()
{
         return genre;
}

int cd::getyear()
{
         return year;
}

//*********
  void cd::setCD(string cartist, string ctitle, string cgenre, int iyear)
{
               artist = cartist;
               title = ctitle;
               genre = cgenre;
               year = iyear;
}

void saveCDLibrary(cd cdLibrary[], int length) {
         // need to write to a file?
         ofstream fout("cdinfo.dat", ios::out);          // Create a file
                                                                         
          //called "cdinfo.dat" for output (writing)

                 if (!fout) {    // unable to create file
                         cerr << "Failed to open output file";
                         exit(1);
                 }
                 for (int i=0; i < length; i++) {
                         fout << cdLibrary[i].getartist() << "," <<
cdLibrary[i].gettitle() << "," << cdLibrary[i].getgenre() << "," <<
cdLibrary[i].getyear() << "," << endl;

                 }
         }

//*********

         void printCDLibrary(cd cdLibrary[], int length) {
                 // This maybe needs sorted, so it would be 
alphabetical??
                 // no idea how to do that

                 for (int i = 0; i < length; i++) {
                         cdLibrary[i].showCD();
                         //cout << cdLibrary[i].showCD();
                 }
         }

//*********


void readCDLibrary(cd cdLibrary[], int length) {
     string input, artist, title, genre;
     int year;

     // Open the file
     ifstream fin("cdinfo.dat", ios::in);

     if (!fin) { // unable to open data file
                 cerr << "File could not be opened";
                 exit(2);
     }
     int i=0;
     while ( fin >> artist >> title >> genre >> year ) {
         cdLibrary[i++].setCD(artist, title, genre, year);
     }
}

//*********




         int main()
         {
                 int cdCount = 0;
                 const int LIBRARY_SIZE = 10;
                 string artist, title, genre;
                 int year;
                 cd cdLibrary[LIBRARY_SIZE];
                 bool ans;

                 // Ask if they want to read the CDs from a file or 
enter new
                 // data:

                 cout << "Read from file (1) or Enter new data (0)? ";
                 cin >> ans;

                 if (ans) {
                         // read from the file?

                         readCDLibrary(cdLibrary, LIBRARY_SIZE);

                 } else {
                         // read in information about CDs
                         while (cdCount < LIBRARY_SIZE) {
                                 cout << "Enter CD Information:" << endl;
                                 cout << "Enter artist: ";
                                 cin.getline(artist, 256);
                                 cout << "Enter title: ";
                                 cin.getline(title, 256);
                                 cout << "Enter genre: ";
                                 cin.getline(genre, 256);
                                // cout <<"\n";
                                 cout << "Enter year: (0 to quit)";
                                 cin >> year;
                                 if (year == 0) { break; }

                                 cout << "\n";

                                 cdLibrary[cdCount].setCD(artist, title,
genre, year);
                                 cdCount++;
                         }
                 }

                 saveCDLibrary(cdLibrary, LIBRARY_SIZE);
                 printCDLibrary(cdLibrary, LIBRARY_SIZE);


                 return 0;
         }

//*********