location - How to call functions on the stage in JavaFX's controller file -


i using javafx along with fxml, use controller real coding. need few operations on stage, such getting x- or y-axis position. have tried stage.getx() & stage.gety, don't work(the stage name high-lited error). how use such functions in controller? tried doing in main file:

 public int locationx = stage.getx();

and 

public double locationx = stage.getx();

but doesn't work, instead makes whole program 1 big error.
how such functions in controller file? need import or above in way? 

error: cannot find symbol     locationx = stage.getx(); symbol:   variable stage location: class fxmlcontroller


know "stage" missing. how get "stage" in controller?

from root pane in fxml file :

@fxml parent root

you can stage by:

stage stage = (stage) root.getscene().getwindow()

you have reference stage, can want.


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