public SaveDialog(final Stage stg, String text) { width = 300; height = 100; final Stage stage = new Stage(); stage.initModality(Modality.APPLICATION_MODAL); stage.initOwner(stg); stage.setTitle("提示框"); Group root = new Group(); AnchorPane anchorPane = new AnchorPane(); area = new TextArea(); area.setFont(new Font(30)); area.setEditable(false); area.setWrapText(true); area.setPrefWidth(width); area.setPrefHeight(height); System.out.println(area.getWidth()); System.out.println(area.getHeight()); Scene scene = new Scene(root, width, height); area.setText(text); anchorPane.getChildren().add(area); root.getChildren().add(anchorPane); stage.setScene(scene); stage.show(); }