To show some content in a new window, a
Stage needs to be created. After creation and initialisation
showAndWait needs to be called on the
// create sample content Rectangle rect = new Rectangle(100, 100, 200, 300); Pane root = new Pane(rect); root.setPrefSize(500, 500); Parent content = root; // create scene containing the content Scene scene = new Scene(content); Stage window = new Stage(); window.setScene(scene); // make window visible window.show();
Note: This code needs to be executed on the JavaFX application thread.