Declaration of the PianoView class for the Piano tutorial on the SSaurel's Channel

PianoView.java

/**
 * Created by ssaurel on 15/03/2018.
 */
public class PianoView extends View {

    public static final int NB = 14;
    private Paint black, yellow, white;
    private ArrayList<Key> whites = new ArrayList<>();
    private ArrayList<Key> blacks = new ArrayList<>();
    private int keyWidth, height;
    private AudioSoundPlayer soundPlayer;
    
    // ...
}