Question

Fix my code, if I the song or the artist name is not on the vector, I want to user re-enter the correct song or artist name in the list, so no bug found in the program

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

class musicList{
private:
vector<string> songName;
vector<string> artistName;
public:
void addSong(string sName, string aName){
songName.push_back(sName);
artistName.push_back(aName);
}

void deleteSongName(string sName){
vector<string>::iterator result = find(songName.begin(), songName.end(), sName);
if (result == songName.end()){
cout << "The song name is not in there!" << endl;
}
else{
songName.erase(result);
}
}

void deleteArtistName(string aName){
vector<string>::iterator result = find(artistName.begin(), artistName.end(), aName);
if (result == artistName.end())
cout << "The artist name is not in there!" << endl;
else
artistName.erase(result);
}

void printList(){
cout << "Here is the list of your music:" << endl;
for(int i=0; i < songName.size() && i < artistName.size(); i++){
cout << i << ". " << songName.at(i) << " by " << artistName.at(i) << endl;
}
}
};

void displayMenu(){

cout << "1. Add Song" << endl;

cout << "2. Delete Song" << endl;

cout << "3. Print music List" << endl;

cout << "4. Exit" << endl;

cout << endl;

}

int main(){

musicList mList;

while(true){

displayMenu();
cout << "Enter your choice" << endl;
int option;
cin >> option;
cin.ignore(26, '\n');
cout << endl;

if(option == 1){
string sName;
string aName;
cout << "Enter the song name:" << endl;
getline(cin, sName);
cout << "Enter artist name:" << endl;
getline(cin, aName);
mList.addSong(sName, aName);

cout << endl;

}else if(option == 2){
string sName;
string aName;
cout << "Enter the song name you want to delete:" << endl;
getline(cin, sName);
mList.deleteSongName(sName);
cout << "Enter artist name you want to delete:" << endl;
getline(cin, aName);
mList.deleteArtistName(aName);

cout << endl;
}
else if(option == 3){
mList.printList();
cout << endl;
}else if(option == 4){
cout << "Exiting" << endl;
break;
}
}
}

Answer 1

`Hey,

Note: Brother if you have any queries related the answer please do comment. I would be very happy to resolve all your queries.

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

class musicList{
private:
vector<string> songName;
vector<string> artistName;
public:
void addSong(string sName, string aName){
songName.push_back(sName);
artistName.push_back(aName);
}

int deleteSongName(string sName){
vector<string>::iterator result = find(songName.begin(), songName.end(), sName);
if (result == songName.end()){
cout << "The song name is not in there!" << endl;
return -1;
}
else{
songName.erase(result);
}

return 0;
}

int deleteArtistName(string aName){
vector<string>::iterator result = find(artistName.begin(), artistName.end(), aName);
if (result == artistName.end())
{
cout << "The artist name is not in there!" << endl;
return -1;
}
else
artistName.erase(result);
return 0;
}

void printList(){
cout << "Here is the list of your music:" << endl;
for(int i=0; i < songName.size() && i < artistName.size(); i++){
cout << i << ". " << songName.at(i) << " by " << artistName.at(i) << endl;
}
}
};

void displayMenu(){

cout << "1. Add Song" << endl;

cout << "2. Delete Song" << endl;

cout << "3. Print music List" << endl;

cout << "4. Exit" << endl;

cout << endl;

}

int main(){

musicList mList;

while(true){

displayMenu();
cout << "Enter your choice" << endl;
int option;
cin >> option;
cin.ignore(26, '\n');
cout << endl;

if(option == 1){
string sName;
string aName;
cout << "Enter the song name:" << endl;
getline(cin, sName);
cout << "Enter artist name:" << endl;
getline(cin, aName);
mList.addSong(sName, aName);

cout << endl;

}else if(option == 2){
string sName;
string aName;
while(1)
{
cout << "Enter the song name you want to delete:" << endl;
getline(cin, sName);
if(mList.deleteSongName(sName)!=-1)
{
break;
}
else
{
cout<<"Please re-enter\n";
}
}

while(1)
{
cout << "Enter artist name you want to delete:" << endl;
getline(cin, aName);
if(mList.deleteArtistName(aName)!=-1)
{
break;
}
else
{
cout<<"Please re-enter\n";
}

}

cout << endl;
}
else if(option == 3){
mList.printList();
cout << endl;
}else if(option == 4){
cout << "Exiting" << endl;
break;
}
}
}

Kindly revert for any queries

Thanks.