JavaFX - show graph in pane on checkbox click -

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i have fxml file has pane 1 of it's entries, used show graph. not not visible default. when checkbox checked, pane visible. have add graph in pane , show graph when pane visible. how achieve this? have created graph using link. javafx real-time linechart time axis 

pane.visibleproperty().addlistener((obs, wasvisible, isvisible) -> {     if(isvisible) { // pane became visible, add graph         linechart<x, y> chart = ...;         pane.getchildren().add(chart);     } else { // pane became hidden, remove graph         pane.getchildren().clear();     } });

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