Set a shape drawn on another shape as Invisible - javafx

Question

I want to draw a line passing through a circle. However, I do not want the line to be shown while its inside the circle. How can I accomplish this? Note that I'm drawing the circle first and then the line.
I used a couple of things like:
Circle.setOpacity to 1, which didn't help!
Used line.toBack() after adding the circle and line in the same group. This didnt help either

Answer 1

line.toBack()
line.toFront()
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.*;
import javafx.scene.paint.Color;
import javafx.scene.shape.*;
import javafx.stage.Stage;
public class LineUnderCircle extends Application {
#Override
public void start(Stage stage) throws Exception {
Line line = new Line(10, 10, 50, 50);
line.setStrokeWidth(3);
Circle left = new Circle(10, 10, 8, Color.FORESTGREEN);
Circle right = new Circle(50, 50, 8, Color.FIREBRICK);
Button lineToBack = new Button("Line to back");
lineToBack.setOnAction(e -> line.toBack());
Button lineToFront = new Button("Line to front");
lineToFront.setOnAction(e -> line.toFront());
Pane shapePane = new Pane(line, left, right);
HBox controlPane = new HBox(10, lineToBack, lineToFront);
VBox layout = new VBox( 10, controlPane, shapePane);
layout.setPadding(new Insets(10));
stage.setScene(new Scene(layout));
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}