import javafx.application.Application;
import javafx.geometry.Dimension2D;
import javafx.scene.ImageCursor;
import javafx.stage.Stage;
/**
 *
 * @author vakulova
 */
public class Test extends Application {
    public static void main(String[] args) {
        launch(args);
    }
    
    @Override
    public void start(Stage stage) throws Exception {
        Dimension2D dim = ImageCursor.getBestSize(20, 20);
        Dimension2D dim1 = ImageCursor.getBestSize(300, 300);
        System.out.println("BestSize (20, 20): " + dim.getWidth() + ", " + dim.getHeight() + "\nBestSize (300, 300): " + dim1.getWidth() + ", " + dim1.getHeight());
        return;
    }
}