Question
Hello can someone please assist in filling this out, the comments that say /TODO are the ones that need to be filled out, code is
Hello can someone please assist in filling this out, the comments that say /TODO are the ones that need to be filled out, code is already a template.
# Write a class called Song in a file called Song.h with three fields: Title (string) Singer (string) Chart Position (int) # Place these method headers in the Song.h file 1. Getter and setter for each field 2. Other methods 1. Song(); // default constructor 2. Song(std::string title,std:: string singer, int chartPosition); // custom constructor 3. std::string toString(); // returns object as a string 4. bool operator<(Song other) // overloads the < operator -returns true if the chart position of this song is less others 5. friend std::ostream & operator<<(std::ostream&, Song* s); // overloads the << operator # Write the implementation of these methods in a file called Song.cpp # Write a driver called SongMain.cpp that does the following a. Creates a dynamic array that reads in data from SongData.txt and b. Populates the array by constructing song objects from this data c. Uses the non-recursive selection sort method to sort the array according to chart position (uses the overloaded < operator on Song objects) d. Prints the top ten songs in the chart (uses the overloaded << operator) e. Searches for any song by title and returns chart position asks user for song title, does linear search returns position or -1
CODE: Main.cpp
#include
//print the top ten songs in the sorted array void printTopTen(Song**, int size); //print all the songs in the array void print(Song**, int size);
//returns the actual number of songs read // if more songs than size, then they are ignored.
int populateArray(std::string filename, Song**); //search by title int searchASong(Song** dataArray, int size); //get the song by chart position Song getSong(Song** dataArray, int size, int chartPosition);
int main() { // create a dynamic array of pointers to Song objects Song** dataArray = new Song * [SIZE]; //populate the array by reading data from the file int size = populateArray("SongsData.txt", dataArray); //print the data Array //print(dataArray,size); // sort the song array using selection sort int sortSteps = sortSongs(dataArray, size); //print the number of steps //print the sorted data Array print(dataArray, size); //print the top ten songs printTopTen(dataArray, size); //search for a song by title
int searchSteps = searchASong(dataArray, size); //print the number of steps } // Requires non negative size // Effects Sorts the Songs dataArray //using selection sortSongs //Modifies dataArray int sortSongs(Song** dataArray, int size) { //GIVEN CODE int steps = 0; Song* minValue = new Song(); int minIndex = 0; for (int i = 0; i < size; i++) { minValue = dataArray[i]; minIndex = i; for (int j = i + 1; j < size; j++) { steps++; if (*dataArray[j] < minValue) {
minValue = dataArray[j]; minIndex = j; } } dataArray[minIndex] = dataArray[i]; dataArray[i] = minValue;
} return steps; }
// Requires valid filename to open file // Effects fills the Songs dataArray // //Modifies dataArray int populateArray(std::string filename, Song** dataArray) {
//GIVEN CODE int size = 0; std::string line; std::string title; std::string singer; int chartPosition;
try { std::ifstream input(filename); if (input.fail()) throw new std::string(filename + " File Open Error"); while (!input.eof()) { getline(input, line); std::istringstream inpline(line); std::getline(inpline, title, ','); std::getline(inpline, singer, ','); inpline >> chartPosition; dataArray[size] = new Song(title, singer, chartPosition); size++;
}
} catch (std::string e) { std::cout << e << std::endl; } return size; } //R size >0 //E uses the overloaded << operator in Song to print all the Songs //M nothing void print(Song** dataArray, int size) { //TODO } //Requires size >0 //Effects Prints top ten songs by calling print data method // if there are less than 10 songs in array then it prints them all otherwise it prints first 10 songs //Modifies nothing void printTopTen(Song** dataArray, int size) { //TODO }
//Requires size >0 //Effects Linear Searches for the song based on title //Prompts user for title //Modifies Nothing int searchASong(Song** dataArray, int size) { int steps = 0; std::cout << "Which title are you searching ?"; std::string title; getline(std::cin, title); //TODO return steps; }
//Requires size >=0 // Effect Searches for song by title using chart position returns index if found otherwise -1 //uses linear search //Modifies nothing
Song getSong(Song** dataArray, int size, int chartPosition) { //GIVEN CODE if (chartPosition < size) return *dataArray[chartPosition]; else throw new std::string("Exception - Array Out of Bounds"); }
CODE: Song.cpp
#include "Song.h" //default constructor Song::Song(){ title=""; singer=""; chartPosition=0; } //custom constructor Song::Song(std::string title, std::string singer, int chartPosition){ //TODO } //GIVEN CODE std::string Song::toString(){ return "Title: "+title+ " Singer: "+singer+ " ChartPosition: "+std::to_string(chartPosition); } //GIVEN CODE std::ostream& operator<<(std::ostream & str, Song *s){ str<< s->toString(); return str; } // int Song::getChartPosition(){ return 0;// change this //TODO } //GIVEN CODE //operator < overloading bool Song::operator<(Song *b){ return chartPosition
//TODO return "";// change this }
CODE: Header Song.h
#include
#include
class Song{ private: std::string title; std::string singer; int chartPosition; public: //default constructor Song(); //custom constructor Song(std::string title,std:: string singer, int chartPosition); // convert object to string std::string toString(); //operator overloading for ostream operator friend std::ostream & operator<<(std::ostream&, Song* s); //operator overloading for less than operator bool operator<(Song *b); //getter for chart position int getChartPosition(); // return title std::string getTitle(); };
RESOURCE FILES songsdata.txt
december,ariana grande,100 in my head,ariana grande,99 nasa,ariana grande,98 thinking bout you,ariana grande,97 girlfriend,avril lavigne,96 boyfriend,big time rush,95 te deseo lo mejor,bad bunny,94 hostage,billie eilish,93 ice cream,blackpink,92 blood sweat & tears,bts,91 boy in luv,bts,90 dope,bts,79 dimple,bts,77 mic drop,bts,78 second grade,bts,80 war of hormone,bts,76 hold on,chord overstreet,75 we belong,dove cameron,74 boys will be boys,dua lipa,73 man up,hailee steinfeld,70 ko ko bop,exo,71 lotto,exo,72 butterflies,fiji blue,55 he could be the one,hannah montana,54 eight,iu,52 celebrity,iu,50 poker face,lady gaga,51 love me like you,little mix,53 play date,melanie martinez,60 dollhouse,melanie martinez,59 mr potato head,melanie martinez,58 crybaby,melanie martinez,57 soap,melanie martinez,56 die alone,mia sayoko,40 we can't stop,miley cyrus,61 hot n cold,katy perry,62 angel,nct 127,67 lemonande,nct 127,66 another world,nct 127,65 chain,nct 127,69 dreaming,nct 127,68 heartbreaker,nct 127,63 mad city,nct 127,64 once again,nct 127,49 paradise,nct 127,48 punch,nct 127,47 running 2 u,nct 127,46 simon says,nct 127,45 summer127,nct 127,44 switch,nct 127,43 wakey wakey,nct 127,42 welcome to my playground,nct 127,41 beautiful time,nct dream,81 go,nct dream,83 boss,nct u,82 seventh sense,nct u,84 deja vu,olivia rodrigo,86 mona lisa,sabrina carpenter,87 paris,sabrina carpenter,89 prfct,sabrina carpenter,85 sue me,sabrina carpenter,88 long flight,taeyong,2 rose,taeyong,1 twenty two,taylor swift,3 love story,taylor swift,5 we are never getting back together,taylor swift,4 welcome to new york,taylor swift,7 mr brightside,the killers,8 sweater weather,the neighborhood,10 take a hint,victorious,9 shut up and dance,victorious,19 la boyz,victorious,18 ghost,wolf,17 high waisted jeans,wolf,16 hoops,wolf,15 magsafe,wolf,13 styrofoam cup,wolf,14 villain,wolf,11 breathe,lauv,12 hoedown throwdown,hannah montana,20 serendipity,bts,25 fake love,bts,24 the truth untold,bts,29 airplane pt. 2,bts,28 anpanman,bts,27 answer,bts,26 go go,bts,21 im fine,bts,22 magic shop,bts,23 mikrokosmos,bts,35 make it right,bts,30 home,bts,32 jamais vu,bts,33 dionysus,bts,36 one in a million,astro,37 all night,astro,38 sns,astro,31 so what,pink,34 roar,katy perry,39 firework,katy perry,6
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