JavaFX Line create cylinder

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Arc;
import javafx.scene.shape.ArcType;
import javafx.scene.shape.Line;
import javafx.stage.Stage;

public class Main extends Application {
  @Override//w  w w. j  av a  2 s  .  c om
  public void start(Stage primaryStage) {
    CylinderPane pane = new CylinderPane(200, 200 / 2.5);
    pane.setPadding(new Insets(20));

    Scene scene = new Scene(pane);
    primaryStage.setTitle("E14_10");
    primaryStage.setScene(scene);
    primaryStage.setResizable(false);
    primaryStage.show();
  }

  public static void main(String[] args) {
    Application.launch(args);
  }
}

class CylinderPane extends StackPane {
  CylinderPane(double xRadius, double yRadius) {
    // Container pane for all the shapes
    Pane pane = new Pane();

    // The top ellipse
    Arc topArc = new Arc(xRadius, yRadius, xRadius, yRadius, 0, 360);
    topArc.setFill(Color.WHITE);
    topArc.setStroke(Color.BLACK);

    Arc bottomDash = new Arc(xRadius, yRadius + yRadius * 5, xRadius, yRadius, 0, 180);
    bottomDash.setFill(Color.WHITE);
    bottomDash.setStroke(Color.BLACK);
    bottomDash.getStrokeDashArray().addAll(6.0, 21.0);

    Arc bottomSolid = new Arc(xRadius, yRadius + yRadius * 5, xRadius, yRadius, 180, 180);
    bottomSolid.setFill(Color.WHITE);
    bottomSolid.setStroke(Color.BLACK);
    bottomSolid.setType(ArcType.OPEN);

    // The lines connecting the top and bottom ellipses.
    Line leftLine = new Line(0, yRadius, 0, yRadius + yRadius * 5);
    leftLine.setStroke(Color.BLACK);
    Line rightLine = new Line(xRadius * 2, yRadius, xRadius * 2, yRadius + yRadius * 5);

    // Shapes added to container
    pane.getChildren().addAll(topArc, bottomDash, bottomSolid, leftLine, rightLine);

    // Container added to StackPane for presentation
    getChildren().add(pane);
  }
}