Java tutorial
import javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.paint.Color; import javafx.scene.shape.Rectangle; import javafx.stage.Stage; public class Main extends Application { public static void main(String[] args) { Application.launch(args); } @Override public void start(Stage primaryStage) { primaryStage.setTitle(""); Group root = new Group(); Scene scene = new Scene(root, 300, 250, Color.WHITE); Rectangle r = new Rectangle(); r.setX(50); r.setY(50); r.setWidth(200); r.setHeight(100); root.getChildren().add(r); primaryStage.setScene(scene); primaryStage.show(); } }