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| Teaching Since: | Jul 2017 |
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| Questions Answered: | 15833 |
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MBA,PHD, Juris Doctor
Strayer,Devery,Harvard University
Mar-1995 - Mar-2002
Manager Planning
WalMart
Mar-2001 - Feb-2009
I need to add arrays to the current code I have, I use visual studio, c++. For example for this dj program you can add the ability to handle multiple songs and playlists. The electrical program should handle multiple customer scenarios.
#include <iostream>
#include <cmath>
using namespace std;
enum Genre {
     Blues, Rock, Pop, Jazz, Unknown
};
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int noSong = 0;
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class SongInfo {
private:
     string _name;
     string _artist;
     string _album;
     Genre _g;
     double _length;
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public:
     SongInfo() {
     }
     void loadSongInfo(string name, string artist, string album, Genre g,
                 double length) {
           _name = name;
           _artist = artist;
           _album = album;
           _g = g;
           _length = length;
     }
     Genre getSongGenre() {
           return _g;
     }
     void displaySongInfo() {
           cout << "Song Name:" << _name << endl;
           cout << "Artist Name:" << _artist << endl;
           cout << "Album Name:" << _album << endl;
           string g;
           switch (_g) {
           case Blues:
                 g = "Blues";
                 break;
           case Rock:
                 g = "Rock";
                 break;
           case Pop:
                 g = "Pop";
                 break;
           case Jazz:
                 g = "Jazz";
                 break;
           default:
                 g = "Unknown";
                 break;
           }
           cout << "Genre Name:" << g << endl;
           cout << "Length in mins:" << _length << endl;
     }
};
class Jocker {
public:
     // constructor
     int calculatePaylist(int songLen, int numberOfSongs) {
           this->songLen = songLen;
           this->numberOfSongs = numberOfSongs;
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           avPlayListlen = songLen * numberOfSongs;
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           return avPlayListlen;
     }
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     // hidden data from outside world
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     int songLen;
     int numberOfSongs;
     int avPlayListlen;
};
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SongInfo songs[100];
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//Menu
int menu() {
     int choice;
     cout << "1. Add Song to PlayeList: \n";
     cout << "2. Show Playlist by Genre\n";
     cout << "3. Display Playlist\n";
     cout << "4. Exit\n";
     cout << "Enter the option: ";
     cin >> choice;
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     while (choice < 1 || choice > 4) {
           cout << "Option must be between (1-4): ";
           cin >> choice;
     }
     return choice;
}
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//Main function
int main() {
     string name;
     string artist;
     string album;
     Genre g;
     double length;
     while (true) {
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           int option = menu();
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           if (option == 1) {
                 cout << "Enter name of song (e.g. Last Day)" << endl;
                 cin >> name;
                 cout << "Enter name of arist (e.g. Taylor Swift)" << endl;
                 cin >> artist;
                 cout << "Enter name of album (e.g. Breaking Bad)" << endl;
                 cin >> album;
                 cout << "Enter genre - Blues = 1, Rock=2, Pop=3 and Jazz=4" << endl;
                 int choice = 0;
                 cin >> choice;
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                 switch (choice) {
                 case 1:
                       g = Blues;
                       break;
                 case 2:
                       g = Rock;
                       break;
                 case 3:
                       g = Pop;
                       break;
                 case 4:
                       g = Jazz;
                       break;
                 default:
                       g = Unknown;
                       break;
                 }
                 cout << "Enter length of song in minutes (e.g. 5.2)" << endl;
                 cin >> length;
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                 songs[noSong].loadSongInfo(name, artist, album, g, length);
                 noSong++;
           } else if (option == 2) {
                 cout << "List songs by genre - Blues = 1, Rock=2, Pop=3 and Jazz=4"
                             << endl;
                 int choice = 0;
                 cin >> choice;
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                 cout << "Listing songs " << endl;
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                 for (int i = 0; i < noSong; i++) {
                       Genre g;
                       switch (choice) {
                       case 1:
                             g = Blues;
                             break;
                       case 2:
                             g = Rock;
                             break;
                       case 3:
                             g = Pop;
                             break;
                       case 4:
                             g = Jazz;
                             break;
                       default:
                             g = Unknown;
                             break;
                       }
                       if (songs[i].getSongGenre() == g) {
                             songs[i].displaySongInfo();
                       }
                 }
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           } else if (option == 3) {
                 cout << "Listing all songs in your collection" << endl;
                 for (int i = 0; i < noSong; i++) {
                       songs[i].displaySongInfo();
                 }
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           } else if (option == 4) {
                 cout << "Good Bye!" << endl;
                 return 0;
           }
           cout << endl;
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     }
     return 0;
}
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