import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.paint.Color;
import javafx.scene.paint.CycleMethod;
import javafx.scene.paint.LinearGradient;
import javafx.scene.paint.Stop;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

/**
 *
 * @author jcambon
 */
public class HelloPaintJc extends Application {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Application.launch(args);
    }

    @Override
    public void start(Stage stage) {
        stage.setTitle("Hello Paint");
        Scene scene = new Scene(new Group(), 600, 450);

        Stop[] stops = new Stop[]{new Stop(1, Color.WHITE), new Stop(1, Color.BLACK)};
        LinearGradient lg = new LinearGradient(0, 0, 1, 0, true, CycleMethod.NO_CYCLE, stops);
        Rectangle r = new Rectangle(100, 100);
        r.setFill(lg);

        ((Group) scene.getRoot()).getChildren().add(r);

        stage.setScene(scene);
        stage.show();
    }
}