Why is my java shapes file not showing my crossed lines: Line line$11=$ new Line$(-$x $/1\mathrm{.}5,-$x $/2\mathrm{.}5,$ x $/1\mathrm{.}5,-$x $/2\mathrm{.}5)$;

Line line$12=$ new Line$(0,-$x$,0,$ x$)$;

line$11.$setStroke$($Color$.$GREEN$)$;

line$11.$setStrokeWidth$(6)$;

line$12.$setStroke$($Color$.$GREEN$)$;

line$12.$setStrokeWidth$(6)$;

StackPane lines $=$ new StackPane$()$;

GridPane pane $=$ new GridPane$()$;

pane.setPadding$($new Insets$(50,50,50,50))$;

pane.add$($lines$,2,2)$;

pane.add$($angle$,0,0)$;

pane.add$($c$,1,1)$;

pane.add$($new Group$(),2,2)$;

Scene scene $=$ new Scene$($pane$)$;

primaryStage.setTitle$("$Shapes in Grid"$)$;

primaryStage.setScene$($scene$)$;

primaryStage.show$()$;

primaryStage.setResizable$($false$)$;

$\}$