SoundController.java

package sample;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.Media;

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ThreadLocalRandom;

public class SoundController{
    private List<String> sounds = new ArrayList<>();

    //Creating Singleton
    private static final SoundController INSTANCE = new SoundController();
    private SoundController(){
        addSound("./src/sample/woosh1.mp3");
        addSound("./src/sample/woosh2.mp3");
        addSound("./src/sample/woosh3.mp3");
        addSound("./src/sample/woosh4.mp3");
    }
    public static SoundController getInstance(){
        return INSTANCE;
    }
    //End Singleton

    public void addSound(String file){
        this.sounds.add(file);
    }
    public void playSound(){
        Media sound = new Media(new File(sounds.get(ThreadLocalRandom.current().nextInt(0, sounds.size()))).toURI().toString());
        MediaPlayer mediaPlayer = new MediaPlayer(sound);
        mediaPlayer.play();
    }
}