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Papito

By Papito
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Papito

Posted
Posted
Hello guys, long time I dont start a new topic and less one about C++, a few years back I have studied c++ but know I forget everything and now I want to begin again, I have 2 lil console software to do (see attached files), I dont need something complicated just a simple code, is there somebody who can help me out?
 

 

I have this:

 

header.h

#include <string>
#include <vector>
#include<fstream>
using namespace std;
 
enum Genre {
POP_MUSIC,
ROCK_MUSIC,
FOLK_MUSIC,
PUNK_MUSIC,
COUNTRY_MUSIC,
DISCO_MUSIC,
REGGAETON_MUSIC,
CLASSIC_MUSIC
 
};
 
enum DISPLAY_OPTS {
FULL_DESC,
MAIN_DESC,
SIMPLE_DESC
};
 
 
class CD {
private:
string name;
string artist;
string label;
int tracks;
vector<string> tracklist;
int year;
Genre genre;
public:
CD();
~CD();
void setName(string);
void setArtist(string);
void setLabel(string);
void setYear(int);
void setGenre(Genre);
void setTrackList(vector<string>);
void addTrackToList(string);
string removeTrackFromList(string);
 
string getName();
string getArtist();
string getLabel();
int getYear();
Genre getGenre();
vector<string> getTrackList();
string getTrack(int);
int getTracks();
 
string showCD(DISPLAY_OPTS);
void saveCDToFile(ofstream &);
 
};

Resource.cpp

#include "Header.h"
#include <sstream>
using namespace std;
 
CD::CD(){}
CD::~CD(){}
 
void CD::setName(string name) {
this->name = name;
}
void CD::setArtist(string artist) {
this->artist = artist;
}
void CD::setLabel(string label) {
this->label = label;
}
void CD::setYear(int year) {
this->year = year;
}
void CD::setGenre(Genre genre) {
this->genre = genre;
}
void CD::setTrackList(vector<string> list) {
this->tracklist = list;
}
void CD::addTrackToList(string track) {
this->tracklist.push_back(track);
}
string CD::removeTrackFromList(string value) {
int index = -1;
for(int i=0; i<this->tracklist.size(); i++) {
if (value.compare(this->tracklist[i]) == 0){
index = i;
break;
}
 
}
if(index != -1) {
try {
this->tracklist.erase(this->tracklist.begin() + index);
} catch (int ex) {
return "Error al borrar"; 
}
return "Borrado";
}
return "No encontrado";
}
string CD::getName() {
return this->name;
}
string CD::getArtist() {
return this->artist;
}
string CD::getLabel() {
return this->label;
}
int CD::getYear() {
return this->year;
}
Genre CD::getGenre() {
return this->genre;
}
vector<string> CD::getTrackList() {
return this->tracklist;
}
string CD::getTrack(int trackNum) {
if(trackNum < getTracks())
return this->tracklist[trackNum];
return "";
}
int CD::getTracks() {
return this->tracklist.size();
}
 
string CD::showCD(DISPLAY_OPTS opts) {
stringstream outputStr;
if(opts == SIMPLE_DESC) {
outputStr << this->getName() << "," << this->getArtist() << endl;
} else if(opts == MAIN_DESC || opts==FULL_DESC) {
outputStr << "Name:" << this->getName() << endl;
outputStr << "Artist: " << this->getArtist() << endl;
outputStr << "Label: " << this->getLabel() << endl;
outputStr << "Year: " << this->getYear() << endl;
outputStr << "Genre : " << this->getGenre() << endl;
outputStr << "Tracks: " << this->getTracks() << endl;
 
 
} if(opts == FULL_DESC) {
for ( int i = 0; i <this->getTracks(); i++){
outputStr << i+1 << " - " << tracklist[i];
}
}
return outputStr.str();
 
 
 
}
void CD::saveCDToFile(ofstream & output ){
 
output << this->getName() << endl;
output <<  this->getArtist() << endl;
output <<  this->getLabel() << endl;
output <<  (int)this->getGenre() << endl;
output << this->getYear() << endl;
output <<  this->getTracks() << endl;
for ( int i = 0; i <this->getTracks(); i++){
output <<  tracklist[i];
}
 
}

trabajoexamen.cpp

#include <iostream>
#include <vector>
#include <fstream>
using namespace std;
 
#include "Header.h"
CD inputCDData() throw (int);
vector<CD> inputCDDataFromFile(string) throw (int);
void saveCatalog(vector<CD>);
int main() {
ifstream file;
vector<CD> catalog;
int menuOpt;
 
 
do{
cout << "Que deseas hacer: \n1 - Capturar\n2 - Cargar\n3 - Mostrar\n4 - Salir";
cin >> menuOpt;
cin.ignore(1 , '\n');
if ( menuOpt == 1) {
try { 
CD ccd = inputCDData();
catalog.push_back(ccd);
} catch ( int exceptionCode) {
cerr << "Error en lectura.\n";
}
}
else if ( menuOpt == 2 ) {
string filename;
try { 
cout << "Que archivo quieres cargar: ";
file >> filename;
vector<CD> ccd = inputCDDataFromFile(filename);
for ( int i = 0; i < ccd.size();i++){
catalog.push_back(ccd[i]);
}
} catch ( int exceptionCode) {
cerr << "Error en lectura.\n";
}
}
else if ( menuOpt == 3 ) {
//displayCDData(catalog);
}
} while ( menuOpt != 4);
saveCatalog(catalog);
system("pause");
}
 
CD inputCDData() throw (int) {
CD record;
string tempValue;
int tempInt;
 
cout << "Dame el titulo del album: ";
getline ( cin , tempValue);
record.setName(tempValue);
cout << "Dame el artista: ";
getline ( cin , tempValue);
record.setArtist(tempValue);
cout << "De que compa\224ia es el album: ";
getline ( cin , tempValue);
record.setLabel(tempValue);
cout << "A que genero pertenece:\n1 - Pop\n2 - Rock\n3 - Folk\n4 - Punk\n5 - Country\n6 - Disco\n7 - Raegeton"
<< "\n8 - Clasico\n";
cin >> tempInt;
record.setGenre(Genre(tempInt - 1));
cout << "De que a\244o es el album: ";
cin >> tempInt;
record.setYear(tempInt);
cout << "Cuantas canciones tiene: ";
cin >> tempInt;
 
for( int i = 0; i < tempInt; i++){
cin.ignore( 1 , '\n');
cout << "Dame la cancion #" << i+1 << ": ";
getline (cin,tempValue);
record.addTrackToList(tempValue);
}
 
system("cls");
return record;
}
 
vector<CD> inputCDDataFromFile(string filename) throw (int) {
vector<CD> records;
CD record;
string tempValue;
int tempInt;
ifstream file;
system("cls");
 
file.open(filename);
if ( file.is_open()) {
while ( !file.eof()){
 
getline ( file , tempValue);
record.setName(tempValue);
 
getline ( file , tempValue);
record.setArtist(tempValue);
 
getline ( file , tempValue);
record.setLabel(tempValue);
 
file >> tempInt;
record.setGenre(Genre(tempInt - 1));
 
file >> tempInt;
record.setYear(tempInt);
 
file >> tempInt;
file.ignore(1,'\n');
for( int i = 0; i < tempInt; i++){
cin.ignore( 1 , '\n');
 
getline (file,tempValue);
record.addTrackToList(tempValue);
}
records.push_back(record);
 
}
file.close();
} else {
throw 10;
}
 
system("cls");
return records;
}
void saveCatalog(vector<CD> catalog){
ofstream output;
output.open("catalog.txt", ios::app || ios::ate);
if(output.is_open()){
for(int i=0; i < catalog.size(); i++){
catalog[i].saveCDToFile(output);
}
output.close();
}
}

post-460-0-45319100-1394778216_thumb.jpg

post-460-0-46948600-1394778218_thumb.jpg

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Corey Apprentice

Corey

Posted
Posted

Had a chance to look at it and unfortunately I was unsuccessful :P

 

The first errors that came up had to do with the ofstream and ifstream, but once those errors went away it had a lot of the header references you were talking about and that is outside the spectrum of knowledge for me :(

 

the errors with the ifstream and ofstream

file.open(filename);    line 94

output.open("catalog.txt", ios::app || ios::ate);   line 134


i googled it and it said that ifstream takes a const char* and not a string

so had to change the first one to file.open(filename.c_str());

sorry papito hopefully someone else more knowledgeable can help you!

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parrot Rookie

parrot

Posted
Posted

 

file.open(filename);

should be

 

file.open( filename.c_str() )

 

for one thing.

 

I can work on debugging maybe friday (I like coding). I have tons of shit this week to do :/

 

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parrot Rookie

parrot

Posted
Posted (edited)

Alright, I have your program compiling and running. I'm not sure the functionality is exactly correct, but it appears so. I fixed your indentation/style because it was driving me batty, and I removed the "system" calls, because you should never, ever, do that :) I'm not sure why you had the line

file.open( filename.c_str(), ios::app || ios::ate)

I changed it to:

file.open( filename.c_str(), ios:app)

If you have any further questions, let me know.

 

*edit* Might consider a switch statement for main.cpp instead of if else if else.

 

(I also renamed the files appropriately)

 

main.cpp:

#include <iostream>
#include <vector>
#include <fstream>
#include "jukebox.h"

using namespace std;

CD inputCDData() throw (int);
vector<CD> inputCDDataFromFile(string) throw (int);
void saveCatalog(vector<CD>);

int main()
{
  ifstream file;
  vector<CD> catalog;
  int menuOpt;

  do
  {
    cout << "Que deseas hacer: \n1 - Capturar\n2 - Cargar\n3 - Mostrar\n4 - Salir";
    cin >> menuOpt;
    cin.ignore(1 , '\n');
    if ( menuOpt == 1)
    {
      try
      {
        CD ccd = inputCDData();
        catalog.push_back(ccd);
      }
      catch ( int exceptionCode)
      {
        cerr << "Error en lectura.\n";
      }
    }
    else if ( menuOpt == 2 )
    {
      string filename;
      try
      {
        cout << "Que archivo quieres cargar: ";
        file >> filename;
        vector<CD> ccd = inputCDDataFromFile(filename);
        for ( int i = 0; i < ccd.size();i++)
        {
          catalog.push_back(ccd[i]);
        }
      }
      catch ( int exceptionCode)
      {
        cerr << "Error en lectura.\n";
      }
    }
    else if ( menuOpt == 3 )
    {
    //displayCDData(catalog);
    }
  } while ( menuOpt != 4);

  saveCatalog(catalog);
  return 0;
}

CD inputCDData() throw (int)
{
  CD record;
  string tempValue;
  int tempInt;

  cout << "Dame el titulo del album: ";
  getline ( cin , tempValue);
  record.setName(tempValue);
  cout << "Dame el artista: ";
  getline ( cin , tempValue);
  record.setArtist(tempValue);
  cout << "De que compa\224ia es el album: ";
  getline ( cin , tempValue);
  record.setLabel(tempValue);
  cout << "A que genero pertenece:\n1 - Pop\n2 - Rock\n3 - Folk\n4 - Punk\n5 -"
       << "Country\n6 - Disco\n7 - Raegeton\n8 - Clasico\n";
  cin >> tempInt;
  record.setGenre(Genre(tempInt - 1));
  cout << "De que a\244o es el album: ";
  cin >> tempInt;
  record.setYear(tempInt);
  cout << "Cuantas canciones tiene: ";
  cin >> tempInt;

  for( int i = 0; i < tempInt; i++)
  {
    cin.ignore( 1 , '\n');
    cout << "Dame la cancion #" << i+1 << ": ";
    getline (cin,tempValue);
    record.addTrackToList(tempValue);
  }

  return record;
}

vector<CD> inputCDDataFromFile(string filename) throw (int)
{
  vector<CD> records;
  CD record;
  string tempValue;
  int tempInt;
  ifstream file;

  file.open( filename.c_str() );
  if ( file.is_open() )
  {
    while ( !file.eof() )
    {

      getline (file , tempValue);
      record.setName(tempValue);

      getline (file , tempValue);
      record.setArtist(tempValue);

      getline (file , tempValue);
      record.setLabel(tempValue);

      file >> tempInt;
      record.setGenre( Genre(tempInt - 1) );

      file >> tempInt;
      record.setYear(tempInt);

      file >> tempInt;
      file.ignore(1,'\n');
      for( int i = 0; i < tempInt; i++)
      {
        cin.ignore( 1 , '\n');

        getline (file,tempValue);
        record.addTrackToList(tempValue);
      }
      records.push_back(record);

    }
  file.close();
  }
  else
  {
    throw 10;
  }

  return records;
}

void saveCatalog(vector<CD> catalog)
{
  ofstream output;
  output.open("catalog.txt", ios::app);
  if(output.is_open())
  {
    for(int i=0; i < catalog.size(); i++)
    {
      catalog[i].saveCDToFile(output);
    }
    output.close();
  }
}

jukebox.h: (btw, it's a bad idea to use namespace std in a header file)

#include <string>
#include <vector>
#include<fstream>

enum Genre
{
  POP_MUSIC,
  ROCK_MUSIC,
  FOLK_MUSIC,
  PUNK_MUSIC,
  COUNTRY_MUSIC,
  DISCO_MUSIC,
  REGGAETON_MUSIC,
  CLASSIC_MUSIC
};

enum DISPLAY_OPTS
{
  FULL_DESC,
  MAIN_DESC,
  SIMPLE_DESC
};


class CD
{
  private:
    std::string name;
    std::string artist;
    std::string label;
    int tracks;
    std::vector<std::string> tracklist;
    int year;
    Genre genre;
  public:
    CD();
    ~CD();
    void setName(std::string);
    void setArtist(std::string);
    void setLabel(std::string);
    void setYear(int);
    void setGenre(Genre);
    void setTrackList(std::vector<std::string>);
    void addTrackToList(std::string);
    std::string removeTrackFromList(std::string);
    std::string getName();
    std::string getArtist();
    std::string getLabel();
    int getYear();
    Genre getGenre();
    std::vector<std::string> getTrackList();
    std::string getTrack(int);
    int getTracks();
    std::string showCD(DISPLAY_OPTS);
    void saveCDToFile(std::ofstream &);
};

and jukebox.cpp:

#include "jukebox.h"
#include <sstream>
#include <string>

using namespace std;

CD::CD(){}

CD::~CD(){}

void CD::setName(string name) { this->name = name; }

void CD::setArtist(string artist) { this->artist = artist; }

void CD::setLabel(string label) { this->label = label; }

void CD::setYear(int year) { this->year = year; }

void CD::setGenre(Genre genre) { this->genre = genre; }

void CD::setTrackList(vector<string> list) { this->tracklist = list; }

void CD::addTrackToList(string track) { this->tracklist.push_back(track); }

string CD::removeTrackFromList(string value)
{
  int index = -1;
  for(int i=0; i<this->tracklist.size(); i++)
  {
    if (value.compare(this->tracklist[i]) == 0)
    {
      index = i;
      break;
    }
  }
  if(index != -1)
  {
    try
    {
      this->tracklist.erase(this->tracklist.begin() + index);
    }
    catch (int ex)
    {
      return "Error al borrar";
    }
    return "Borrado";
  }
  return "No encontrado";
}

string CD::getName() { return this->name; }

string CD::getArtist() { return this->artist; }

string CD::getLabel() { return this->label; }

int CD::getYear() { return this->year; }

Genre CD::getGenre() { return this->genre; }

vector<string> CD::getTrackList() { return this->tracklist; }

string CD::getTrack(int trackNum)
{
  if(trackNum < getTracks())
  {
    return this->tracklist[trackNum];
  }
  return "";
}

int CD::getTracks() { return this->tracklist.size(); }

string CD::showCD(DISPLAY_OPTS opts)
{
  stringstream outputStr;
  if(opts == SIMPLE_DESC)
  {
    outputStr << this->getName() << "," << this->getArtist() << endl;
  }
  else if(opts == MAIN_DESC || opts==FULL_DESC)
  {
    outputStr << "Name:" << this->getName() << endl;
    outputStr << "Artist: " << this->getArtist() << endl;
    outputStr << "Label: " << this->getLabel() << endl;
    outputStr << "Year: " << this->getYear() << endl;
    outputStr << "Genre : " << this->getGenre() << endl;
    outputStr << "Tracks: " << this->getTracks() << endl;
  }
  if(opts == FULL_DESC)
  {
    for ( int i = 0; i <this->getTracks(); i++)
    {
      outputStr << i+1 << " - " << tracklist[i];
    }
  }
  return outputStr.str();
}

void CD::saveCDToFile(ofstream & output )
{

  output << this->getName() << endl;
  output <<  this->getArtist() << endl;
  output <<  this->getLabel() << endl;
  output <<  (int)this->getGenre() << endl;
  output << this->getYear() << endl;
  output <<  this->getTracks() << endl;
  for ( int i = 0; i <this->getTracks(); i++)
  {
    output <<  tracklist[i];
  }
}
Edited by parrot
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