You are required to implement all the classes as specified by UML di.pdf

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You are required to implement all the classes as specified by UML diagram below.The objective of most of the methods is obvious from the given method name and input parameters.I am listing below the explanation of the not-so-obvious methods. PlayList Class: getSong(pos:int) :Song a method that returns the song that is located in the given position (pos). If there is no song in the given position then the method returns null getSongPosition(title:String):int a method that takes the song title as input and returns as output the position of the song in the list. If not found, the method returns -1. Song -title:String -artist: String +Song (title:String, artist:String) +gettitle ():String +getArtist ):String +tostring ) :String PlayList maxNumOfSongs:int -currentNumor Songs: int; +PlayList (maxNumOESongs:int) +getcurrentNumSongs ) :int +addsong (title:String, artist:String) :void +addsong (song:Song):void +getsong (pos:int) :Song +getsongPosition (title:String) :int User nam String - favoriteSongs: PlayList +User (name: String, favoriteSongs: PlayList) +User (name: String) +setFavoriteSongs (1ist: PlayList) :void +getFavoriteSongs) PlayList; +getsong (title:String) :Song +addsong (title:String, artist:String) :void tartistsongCount (artist:String) :int +tostring () :String Solution Please find the implementation of all the classes mentioned in the above UML diagram. Please see comment against each line to get to know the explanation :.

Education

8.8 Program: Playlist (Java) You will be building a linked list. Make sure to keep track of both the head and tail nodes. (1) Create two files to submit. SongEntry.java - Class declaration Playlist.java - Contains main() method Build the SongEntry class per the following specifications. Note: Some methods can initially be method stubs (empty methods), to be completed in later steps. Private fields String uniqueID - Initialized to \"none\" in default constructor string songName - Initialized to \"none\" in default constructor string artistName - Initialized to \"none\" in default constructor int songLength - Initialized to 0 in default constructor SongEntry nextNode - Initialized to null in default constructor Default constructor (1 pt) Parameterized constructor (1 pt) Public member methods insertAfter() (1 pt) setNext() - Mutator (1 pt) getID() - Accessor getSongName() - Accessor getArtistName() - Accessor getSongLength() - Accessor getNext() - Accessor printPlaylistSongs() Ex. of printPlaylistSongs output: (2) In main(), prompt the user for the title of the playlist. (1 pt) Ex: (3) Implement the printMenu() method. printMenu() takes the playlist title as a parameter and outputs a menu of options to manipulate the playlist. Each option is represented by a single character. Build and output the menu within the method. If an invalid character is entered, continue to prompt for a valid choice. Hint: Implement Quit before implementing other options. Call printMenu() in the main() method. Continue to execute the menu until the user enters q to Quit. (3 pts) Ex: (4) Implement \"Output full playlist\" menu option. If the list is empty, output: Playlist is empty (3 pts) Ex: (5) Implement the \"Add song\" menu item. New additions are added to the end of the list. (2 pts) Ex: (6) Implement the \"Remove song\" method. Prompt the user for the unique ID of the song to be removed.(4 pts) Ex: (7) Implement the \"Change position of song\" menu option. Prompt the user for the current position of the song and the desired new position. Valid new positions are 1 - n (the number of nodes). If the user enters a new position that is less than 1, move the node to the position 1 (the head). If the user enters a new position greater than n, move the node to position n (the tail). 6 cases will be tested: Moving the head node (1 pt) Moving the tail node (1 pt) Moving a node to the head (1 pt) Moving a node to the tail (1 pt) Moving a node up the list (1 pt) Moving a node down the list (1 pt) Ex: (8) Implement the \"Output songs by specific artist\" menu option. Prompt the user for the artist\'s name, and output the node\'s information, starting with the node\'s current position. (2 pt) Ex: (9) Implement the \"Output total time of playlist\" menu option. Output the sum of the time of the playlist\'s songs (in seconds). (2 pts) Ex: Solution SongEntry.java package playlist; public class SongEntry { private String uniqueID; private String songName; private String artistName.

I need help writing the methods for the song and playList class in J.pdf

arihanthtextiles

I need help writing the methods for the song and playList class in Java. I already have the interface and the getters and setter. Can someone help with the methods? Song Class public class Song private String artist // the artist performing the song private String title // the title of the song private int minutes // number of min in length private int seconds // number of seconds of length of the song (always less than 60) // Add Getters / Setters for all fields // Three constructors (remember to initialize ALL fields in each of the constructors - regardless of the number of parameters!) public Song(String artist, String title) public Song(String artist, String title, int minutes, int seconds) public Song(Song s) public boolean equals(Object o) // a song is equal if all four fields are equal public String toString() { // Use this code for toString EXACTLY return \"{Song: title = \" + title + \" artist = \" + artist + \"}\"; } public void play() { // Use this code for play EXACTLY System.out.printf(\"Playing Song: artist = %-20s title = %s\ \", artist, title); } Make the Song class implement the interface Comparable, and make the ordering criteria as follows: Songs will be ordered by artist in ascending order. If the artists are the same, then by title in ascending order. If both artist and title are the same, then any order is acceptable. Don’t forget to include any methods needed to implement the Playable interface. PlayList Class public class PlayList Methods that modify the list should return a boolean return true if they successfully change the list, otherwise they return false. Note that a PlayList can contain other PlayLists! Methods that return a Playable element return null if they fail to find the song in question. private String name // contains the name of the playlist private ArrayList playableList // ArrayList of Playable elements that make up the play list // Add Getters / Setters for name and songList // Add a toString() method that returns the name of the playlist followed by its contents (by calling toString() on each item it contains). You should only have one name/title per line // Two constructors (remember to initialize ALL fields in each of the constructors - regardless of the number of parameters!) public PlayList() // empty play list named \"Untitled\" public PlayList(String newName) // empty play list public boolean loadSongs(String fileName) // loads songs from file, more on this below public boolean clear() // removes all playable elements in the play list public boolean addSong(Song s) // adds Song s to the end of the play list public Playable removePlayable(int index) // removes Playable element at index from the list and returns it public Playable removePlayable(Playable p) // removes every occurrence of Playable p from the list and returns p public Playable getPlayable(int index) // returns the Playable element at the appropriate index public boolean addPlayList(PlayList pl) //adds the PlayList that is being pa.

C++ Programming Search A Linked ListThe Content of songlist.txt.pdf

herminaherman

C++ Programming: Search A Linked List The Content of \"songlist.txt\": Problem 2: Write a C++ program that searches the playlist (the linked list) for a certain song. There are two functions to be implemented. searchSong ByTitl e and searchSongByArtist. searchSongBy Title will search by song title and print the songs that have the title searchSongBy Artist will search by song artist and print the songs that are sung by the artist. Both functions do not need to return the song pointer and they can have a void return type. Solution #include #include #include #include using namespace std; int main(){ vector slist; string line1[30]; int choice; string artist,title; ifstream myfile(\"songlist.txt\"); int a = 0; if(!myfile) { cout<<\"Error opening the output file\"<>choice; if(choice==1){ cout<<\"\ Please enter the title of the song:\"; getline (std::cin,title); for(int i=0;i.

Program 02 Based on the previous problem you should impleme.pdf

addtechglobalmarketi

Program 02 Based on the previous problem, you should implement this second problem in the same file a05.c. Find the places in the code marked with the ToDo label and complete the work. You should not change any other part of the code. This includes do not add any global variables or any other function. For this problem, we are reusing the same struct from problem 1, but adding a pointer to the struct to be able to create a linked list. In this problem, you must use linked list to create a user playlist (play_list). The struct is holding the information of a song: ID, Name, Singer, Genre, Year, and the pointer Next (the pointer to the struct). There should be the following functions. In the similar way we have done in previous assignments, complete the following functions: Add a song to the play_list - always inserted at the end of the list. Search song by name - given the name of the song, return the struct with the data of the song. Edit a song - given the name of the song, find it in the play_list and modify any of the fields of the song (ID cannot be edited, and all fields should have a valid value). Return -1 if the song was not found. Delete a song - given the name of the song, find it, delete the song from the play_list (i.e., disconnect the node from the list). Return -1 if the song was not found, 1 if it was deleted. // Problem 2 // struct to hold information about a song struct Song { int id; char name[MAX_SONG_NAME_LENGTH]; char singer[MAX_SINGER_NAME_LENGTH]; genreType genre; int year; struct Song *next; }; // Function declarations struct Song *createSong(int id, char *name, char *singer, char *genre, int year); void printPlaylist(struct Song *playlist); void add_song(struct Song **playlist, struct Song *newSong); struct Song *search_song(struct Song *playlist, char *name); int edit_song(struct Song *playlist, char *name, char *singer, char *genre, int year); int delete_song(struct Song *playlist, char *name); // function to create a new song struct Song *createSong(int id, char *name, char *singer, char *genre, int year) { struct Song *newSong = (struct Song *)malloc(sizeof(struct Song)); newSong->id = id; strcpy(newSong->name, name); strcpy(newSong->singer, singer); if (strcmp(genre, "Pop") == 0) newSong->genre = 1; else if (strcmp(genre, "Rock") == 0) newSong->genre = 2; else if (strcmp(genre, "Reggae") == 0) newSong->genre = 3; else if (strcmp(genre, "Country") == 0) newSong->genre = 4; else if (strcmp(genre, "Blues") == 0) newSong->genre = 5; else if (strcmp(genre, "Balad") == 0) newSong->genre = 6; else newSong->genre = 0; newSong->year = year; newSong->next = NULL; return newSong; } // function to print the playlist void printPlaylist(struct Song *playlist) { struct Song *current = playlist; while (current != NULL) { printf("%dt%st%st%dt%dn", current->id, current->name, current->singer, current->genre, current->year); current = current->next; } } // function to add a song to the end of the playlist void add_song(struct Song .

Given main(), complete the SongNode class to include the printSong.pdf

illyasraja7

Given main(), complete the SongNode class to include the printSongInfo() method. Then write the Playlist class' printPlaylist() method to print all songs in the playlist. DO NOT print the dummy head node. Ex: If the input is: Stomp! 380 The Brothers Johnson The Dude 337 Quincy Jones You Don't Own Me 151 Lesley Gore -1 the output is: LIST OF SONGS ------------- Title: Stomp! Length: 380 Artist: The Brothers Johnson Title: The Dude Length: 337 Artist: Quincy Jones Title: You Don't Own Me Length: 151 Artist: Lesley Gore PLAYLIST.JAVA import java.util.Scanner; public class Playlist { public static void main (String[] args) { Scanner scnr = new Scanner(System.in); SongNode headNode; SongNode currNode; SongNode lastNode; String songTitle; int songLength; String songArtist; // Front of nodes list headNode = new SongNode(); lastNode = headNode; // Read user input until -1 entered songTitle = scnr.nextLine(); while (!songTitle.equals("-1")) { songLength = scnr.nextInt(); scnr.nextLine(); songArtist = scnr.nextLine(); currNode = new SongNode(songTitle, songLength, songArtist); lastNode.insertAfter(currNode); lastNode = currNode; songTitle = scnr.nextLine(); } // Print linked list System.out.println("LIST OF SONGS"); System.out.println("-------------"); printPlaylist(headNode); } } SONGNODE.JAVA public class SongNode { private String songTitle; private int songLength; private String songArtist; private SongNode nextNodeRef; // Reference to the next node public SongNode() { songTitle = ""; songLength = 0; songArtist = ""; nextNodeRef = null; } // Constructor public SongNode(String songTitleInit, int songLengthInit, String songArtistInit) { this.songTitle = songTitleInit; this.songLength = songLengthInit; this.songArtist = songArtistInit; this.nextNodeRef = null; } // Constructor public SongNode(String songTitleInit, int songLengthInit, String songArtistInit, SongNode nextLoc) { this.songTitle = songTitleInit; this.songLength = songLengthInit; this.songArtist = songArtistInit; this.nextNodeRef = nextLoc; } // insertAfter public void insertAfter(SongNode nodeLoc) { SongNode tmpNext; tmpNext = this.nextNodeRef; this.nextNodeRef = nodeLoc; nodeLoc.nextNodeRef = tmpNext; } // Get location pointed by nextNodeRef public SongNode getNext() { return this.nextNodeRef; } // TODO: Write printSongInfo() method }.

Program 01 For this program you will complete the program in.pdf

addtechglobalmarketi

Program 01 For this program you will complete the program in the a05.c file. Find the places in the code marked with the ToDo label and complete the work. You should not change any other part of the code. This includes do not add any global variables or any other function. The program declares a struct musicRepository with elements for songs ID, songs name, singers name, genre of the song, and songs year. You will be completing a program that creates a list of songs (array of structs). It is a menu-driven program where the user is given the following options: Add a song to the repository - always inserted in the next available space in the array. The next available array might not be next to the last song added, it might be somewhere in the middle. Check Delete function below for details. If there is no space to add a new song, the function should return -1, and 1 otherwise. Search song by name - given the name of the song, return the struct with the data of the song. Print a song - given a struct print its content. Please note that the Genre is an enum type; however, the print function should print a string, not a number for this field. Edit a song - given the name of the song, find it (using the Search function above), and modify any of the fields of the song except ID. ID cannot be edited, and all fields should have a valid value. Delete a song - given the name of the song, find it (using the Search function above), and modify the fields of the song (using the Edit function above), making ID, Year, and Genre 0, and name and author an empty string. Return -1 if the song was not found, 1 if it was deleted. Print the whole list of songs. Print the list of songs including all the fields of the song except for ID. // CSE240 SPRING 2023 Assignment 05 // Enter your name here // You are given a partially completed program that creates a list of songs, like a music repository. // Each song has this information: song's id, song's name, singer's name, genre of the song, and its published year. // The struct 'musicRepository' holds information of one song. Genre is enum type. // An array of structs called 'list' is made to hold the list of songs. // To begin, you should trace through the given code and understand how it works. // Please read the instructions above each resquired function and follow the directions carefully. // You should not modify any of the given code, the return types, or the parameters, you will risk of getting compilation error. // You are not allowed to modify main (). // You can use string library functions. // WRITE COMMENTS FOR IMPORTANT STEPS IN YOUR CODE. #include <stdio.h> #include <stdlib.h> #include <string.h> #pragma warning(disable : 4996) // for Visual Studio Only #define MAX_SONGS 20 #define MAX_SONG_NAME_LENGTH 40 #define MAX_SINGER_NAME_LENGTH 40 typedef enum { unclassified = 0, Pop, Rock, Reggae, Country, Blues, Balad, } genreType; // enum type struct musicRepository { // struct for song details unsigned int ID; c.

Can someone please help me implement the addSong function .pdf

akshpatil4

Can someone please help me implement the "addSong" function in the code below? Thank you! // You are given a partially completed program that creates a list of songs, like a music repository. // Each song has this information: song's id, song's name, singer's name, genre of the song, and its published year. // The struct 'musicRepository' holds information of one song. Genre is enum type. // An array of structs called 'list' is made to hold the list of songs. // You should not modify any of the given code, the return types, or the parameters, you will risk of getting compilation error. // You are not allowed to modify main (). // You can use string library functions. #include <stdio.h> #include <stdlib.h> #include <string.h> #pragma warning(disable : 4996) // for Visual Studio Only #define MAX_SONGS 20 #define MAX_SONG_NAME_LENGTH 40 #define MAX_SINGER_NAME_LENGTH 40 typedef enum { unclassified = 0, Pop, Rock, Reggae, Country, Blues, Balad, } genreType; // enum type struct musicRepository { // struct for song details unsigned int ID; char songName[MAX_SONG_NAME_LENGTH]; char singerName[MAX_SINGER_NAME_LENGTH]; genreType genre; unsigned int year; }; struct musicRepository list[MAX_SONGS]; // declare the list of songs int numSongs = 0; // the number of songs currently stored in the list (initialized to 0) // Given functions void initializeRepository(struct musicRepository repo[], int size); void printRepository(struct musicRepository repo[], int numSongs); void flushSngIn(); // functions that need to be implemented by you int addSong(struct musicRepository repo[], char* songName, char* singerName, char* genre, unsigned int year, int numSongs); struct musicRepository* searchSong(struct musicRepository repo[], char* songName, int numSongs); void printSong(struct musicRepository repo[], int ID); int editSong(struct musicRepository* repo, int numSongs, char* songName); int deleteSongByName(struct musicRepository* repo, char* songName, int numSongs); // This function takes in an array of musicRepository structures and the size of the array as parameters. It then loops through each index of the array and sets the values of id, year, genre, name, and singer to their respective initial values. // NOTE that strcpy is used to copy an empty string to name and singer, rather than setting them equal to "". This is because arrays in C are not assignable, so the strcpy function must be used to copy the empty string into the array. void initializeRepository(struct musicRepository repo[], int size) { for (int i = 0; i < size; i++) { repo[i].ID = 0; repo[i].year = 0; repo[i].genre = 0; strcpy(repo[i].songName, ""); strcpy(repo[i].singerName, ""); } } // This function takes in the musicRepository array and iterates through each element. If the ID of the song is not 0, it prints the details of the song. void printRepository(struct musicRepository repo[], int numSongs) { printf("n--- Song Repository ---n"); for (int i = 0; i < numSongs; i++) { if (repo[i].ID != 0) .

8.15 Program Playlist (C++) You will be building a linked list. Mak.pdf

arenamobiles123

8.15 Program: Playlist (C++) You will be building a linked list. Make sure to keep track of both the head and tail nodes. (1) Create three files to submit. Playlist.h - Class declaration Playlist.cpp - Class definition main.cpp - main() function Build the PlaylistNode class per the following specifications. Note: Some functions can initially be function stubs (empty functions), to be completed in later steps. Default constructor (1 pt) Parameterized constructor (1 pt) Public member functions InsertAfter() (1 pt) SetNext() - Mutator (1 pt) GetID() - Accessor GetSongName() - Accessor GetArtistName() - Accessor GetSongLength() - Accessor GetNext() - Accessor PrintPlaylistNode() Private data members string uniqueID - Initialized to \"none\" in default constructor string songName - Initialized to \"none\" in default constructor string artistName - Initialized to \"none\" in default constructor int songLength - Initialized to 0 in default constructor PlaylistNode* nextNodePtr - Initialized to 0 in default constructor Ex. of PrintPlaylistNode output: Unique ID: S123 Song Name: Peg Artist Name: Steely Dan Song Length (in seconds): 237 (2) In main(), prompt the user for the title of the playlist. (1 pt) Ex: Enter playlist\'s title: JAMZ (3) Implement the PrintMenu() function. PrintMenu() takes the playlist title as a parameter and outputs a menu of options to manipulate the playlist. Each option is represented by a single character. Build and output the menu within the function. If an invalid character is entered, continue to prompt for a valid choice. Hint: Implement Quit before implementing other options. Call PrintMenu() in the main() function. Continue to execute the menu until the user enters q to Quit. (3 pts) Ex: JAMZ PLAYLIST MENU a - Add song d - Remove song c - Change position of song s - Output songs by specific artist t - Output total time of playlist (in seconds) o - Output full playlist q - Quit Choose an option: (4) Implement \"Output full playlist\" menu option. If the list is empty, output: Playlist is empty (3 pts) Ex: JAMZ - OUTPUT FULL PLAYLIST 1. Unique ID: SD123 Song Name: Peg Artist Name: Steely Dan Song Length (in seconds): 237 2. Unique ID: JJ234 Song Name: All For You Artist Name: Janet Jackson Song Length (in seconds): 391 3. Unique ID: J345 Song Name: Canned Heat Artist Name: Jamiroquai Song Length (in seconds): 330 4. Unique ID: JJ456 Song Name: Black Eagle Artist Name: Janet Jackson Song Length (in seconds): 197 5. Unique ID: SD567 Song Name: I Got The News Artist Name: Steely Dan Song Length (in seconds): 306 (5) Implement the \"Add song\" menu item. New additions are added to the end of the list. (2 pts) Ex: ADD SONG Enter song\'s unique ID: SD123 Enter song\'s name: Peg Enter artist\'s name: Steely Dan Enter song\'s length (in seconds): 237 (6) Implement the \"Remove song\" function. Prompt the user for the unique ID of the song to be removed.(4 pts) Ex: REMOVE SONG Enter song\'s unique ID: JJ234 \"All For You\" remove.

Our best evidence to data suggests that the Earth formed 4.6 billion years ago. What life forms existed on Earth during the following periods. (Match the correct answer to each question; you may use each answer more than once.) What happened during the first billion years (4.5-3.6 billion years ago)? What happened during the second billion years (3.6-2.6 billion years ago)? What happened during the third billion years (2.6-1.6 billion years ago)? What happened during the third billion years (2.6-1.6 billion years ago)? What happened during the fourth billion years (1.6-0.6 billion years ago)? What happened during the last 600 million years (0.6 billion years ago to present)? A. no life existed B. unicellular life appeared C. unicellular life forms were the only living things on Earth d. multicellular life appeared. E. dinosaurs dominated the entire period F. mammals dominated the entire period Solution What happened during the first billion years? (4.6 -3.6 billion years ago?) A. no life existed. Reason: Earth was formed over 4.6 billion years ago.Before that there was no life. What happened during the second billion years? (3.6 -2.6 billion years ago?) C.Unicellular life forms were the only living things on earth. Reason:Unicellular life appeared first about 3.6 billion years ago. What happened during the third billion years? (2.6-1.6 billion years ago?) B.unicellular life appeared. Reason:Unicellualr life appeared on earth during this period. What happened during the fourth billion years? (1.6 -0.6 billion years ago?) D.multicellular life appeared. Reason:Multicellular life appeared 1.5 billion years ago. What happened during the last 600 million years (0.6 billion years ago to pesent?) E and F. Dinosaurs dominated the entire period and mammals dominated the entire period. Reason: Both dinosaurs and mammals appeared in this period .Dinosaurs appeared first and then mammals appeared before extinction of dinosaurs..

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You are required to implement all the classes as specified by UML di.pdf

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