musiclib oop

import java.util.*;
import java.util.stream.IntStream;

class Song {
    private String title;
    private String[] artists;

    public Song(String title, String[] artists) {
        this.title = title;
        this.artists = artists;
    }

    @Override
    public String toString() {
        return "Song{" +
                "title='" + title + '\'' +
                ", artists=" + Arrays.toString(artists) +
                '}';
    }

    public void play() {
        System.out.println("Play " + this.toString());
    }

    public String getTitle() {
        return title;
    }
}

class MusicLib {
    private List<Song> songs;

    public MusicLib() {
        this.songs = new ArrayList<>();
    }

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

    public void rmSong(int index) {
        songs.remove(index);
    }

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

    public void playByTitle(final String title) {
        IntStream intStream = IntStream.range(0, songs.size());
        OptionalInt index = intStream.filter(i -> songs.get(i).getTitle().equals(title)).findFirst();
        songs.get(index.getAsInt()).play();
    }

    public void playRandom() {
        final int size = songs.size();
        if (size == 0) {
            return;
        }
        var random = new Random();
        int index = random.nextInt(size);
        songs.get(index).play();
    }
}

public class Main {

    public static void main(String[] args) {
        var musicLib = new MusicLib();
        musicLib.addSong(new Song("Midnight Train to Georgia", new String[]{"Gladys Knight & the Pips"}));
        musicLib.addSong(new Song("Stairway to Heaven", new String[]{"Led Zeppelin"}));
        musicLib.addSong(new Song("Imagine", new String[]{"John Lennon"}));
        musicLib.addSong(new Song("All by Myself", new String[]{"Eric Carmen"}));
        musicLib.addSong(new Song("What'd I Say", new String[]{"Ray Charles"}));
        musicLib.addSong(new Song("Walking in Memphis", new String[]{"Marc Cohn"}));
        musicLib.addSong(new Song("In the Air Tonight", new String[]{"Phil Collins"}));

        musicLib.playByTitle("Imagine");
        musicLib.playRandom();
    }
}