?? ???? ??????? ?????? ???? ???? ??? ??? ???? ?? ??? ??? ?? ?? ??? ?????.

---

?? ????? ?? ?? ??

1. ?? ??:

   • ??? ????, ??????, ????, ?? ?????.
   • ??? ??(?: MP3, WAV, AAC)? ??? ???? ??

2. ???? ??:

   • ????? ??, ???? ? ?????.
   • ????? ??? ???? ?????.

3. ??:

   • ??, ????, ???? ??? ?????.

4. ??? ??:

   • ?? ? ?? ??.
   • ??? ?????.

5. ??:

   • ??? ?? ?????(?: ??, ????, ??, ??)? ?????.
   • ?? ????? ??? ??? ?? ???? ?????.

---

??? ?? ??

?? ???? ??????? ?? ?? ??? ??? ? ????.

1. ??: ?? ?? ??? ?????.
2. ????: ?? ??? ?????.
3. MusicPlayer: ?? ? ??? ??? ?? ?? ?????.
4. SearchService: ?????? ??? ??? ? ????.
5. StorageService: ????? ?? ??? ?????.

? ????? ???? ???? ??? ???????.

---

1. ?? ??

Song ???? ?????? ??? ?? ?? ??? ?????.

public class Song {
    private String id;
    private String title;
    private String artist;
    private String album;
    private double duration; // in seconds

    public Song(String id, String title, String artist, String album, double duration) {
        this.id = id;
        this.title = title;
        this.artist = artist;
        this.album = album;
        this.duration = duration;
    }

    // Getters and setters
    public String getId() {
        return id;
    }

    public String getTitle() {
        return title;
    }

    public String getArtist() {
        return artist;
    }

    public String getAlbum() {
        return album;
    }

    public double getDuration() {
        return duration;
    }
}

---

2. ???? ??

Playlist ???? ?? ??? ?????. ??? ??, ??, ??? ? ????.

import java.util.ArrayList;
import java.util.List;

public class Playlist {
    private String name;
    private List<Song> songs;

    public Playlist(String name) {
        this.name = name;
        this.songs = new ArrayList<>();
    }

    public void addSong(Song song) {
        songs.add(song);
    }

    public void removeSong(Song song) {
        songs.remove(song);
    }

    public List<Song> getSongs() {
        return songs;
    }

    public String getName() {
        return name;
    }
}

---

3. MusicPlayer ???

MusicPlayer ???? ??, ?? ??, ??, ?? ?? ?? ?? ??? ?????.

public class MusicPlayer {
    private Song currentSong;
    private boolean isPlaying;

    public void play(Song song) {
        this.currentSong = song;
        this.isPlaying = true;
        System.out.println("Playing: " + song.getTitle() + " by " + song.getArtist());
    }

    public void pause() {
        if (isPlaying) {
            isPlaying = false;
            System.out.println("Paused: " + currentSong.getTitle());
        } else {
            System.out.println("No song is currently playing.");
        }
    }

    public void stop() {
        if (currentSong != null) {
            System.out.println("Stopped: " + currentSong.getTitle());
            currentSong = null;
            isPlaying = false;
        } else {
            System.out.println("No song is currently playing.");
        }
    }

    public void resume() {
        if (currentSong != null && !isPlaying) {
            isPlaying = true;
            System.out.println("Resumed: " + currentSong.getTitle());
        } else {
            System.out.println("No song to resume.");
        }
    }
}

---

4. SearchService ???

SearchService ???? ???? ??, ???? ?? ???? ??? ??? ? ????.

import java.util.ArrayList;
import java.util.List;

public class SearchService {
    private List<Song> songs;

    public SearchService(List<Song> songs) {
        this.songs = songs;
    }

    public List<Song> searchByTitle(String title) {
        List<Song> results = new ArrayList<>();
        for (Song song : songs) {
            if (song.getTitle().equalsIgnoreCase(title)) {
                results.add(song);
            }
        }
        return results;
    }

    public List<Song> searchByArtist(String artist) {
        List<Song> results = new ArrayList<>();
        for (Song song : songs) {
            if (song.getArtist().equalsIgnoreCase(artist)) {
                results.add(song);
            }
        }
        return results;
    }

    public List<Song> searchByAlbum(String album) {
        List<Song> results = new ArrayList<>();
        for (Song song : songs) {
            if (song.getAlbum().equalsIgnoreCase(album)) {
                results.add(song);
            }
        }
        return results;
    }
}

---

5. StorageService ???

StorageService ???? ?? ????? ?? ??? ????????.

public class Song {
    private String id;
    private String title;
    private String artist;
    private String album;
    private double duration; // in seconds

    public Song(String id, String title, String artist, String album, double duration) {
        this.id = id;
        this.title = title;
        this.artist = artist;
        this.album = album;
        this.duration = duration;
    }

    // Getters and setters
    public String getId() {
        return id;
    }

    public String getTitle() {
        return title;
    }

    public String getArtist() {
        return artist;
    }

    public String getAlbum() {
        return album;
    }

    public double getDuration() {
        return duration;
    }
}

---

?? ?

import java.util.ArrayList;
import java.util.List;

public class Playlist {
    private String name;
    private List<Song> songs;

    public Playlist(String name) {
        this.name = name;
        this.songs = new ArrayList<>();
    }

    public void addSong(Song song) {
        songs.add(song);
    }

    public void removeSong(Song song) {
        songs.remove(song);
    }

    public List<Song> getSongs() {
        return songs;
    }

    public String getName() {
        return name;
    }
}

---

?? ???

• ???: ? ?? ???? ?? ??? ???? ???? ?? ?? ???? ??? ? ????.
• ???: ??? ?? ????? ????? ?? ??? ??? ?? ??? ? ?? ??????.
• ??? ??: ?? ??, ??, ??? ?? ?? ??? ?????.

? ??? ?? ???? ??????? ??? ???? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!