package lab; import javafx.scene.image.Image; public final class Constants { private Constants() {} public static final double GRAVITATIONAL_ACCELERATION = 9.81; public static final double AIR_DENSITY = 1.2; static final int REFRESH_TIMEOUT = 25; public static final Image DRAGON_IMAGE; static{ DRAGON_IMAGE = new Image(Constants.class.getResourceAsStream("dragon.gif")); } }