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copied!<p>You have to return a Scene from another method or create a Scene within the "Start", and set the Scene on stage. For example:</p> <pre><code>public static Scene secondScene(final Stage primaryStage){ BorderPane pane = new BorderPane(); Label l = new Label("Second Scene"); pane.setCenter(l); //let's say I have a button that changes back to original stage Button b = new Button("Main stage"); b.setOnAction(new EventHandler<ActionEvent>(){ public void handle(ActionEvent t){ // create your own Scene and then set it to primaryStage primaryStage.setScene(new Scene ... ); } }); return new Scene(pane, 300, 300); } </code></pre> <p>Then on your start method:</p> <pre><code>@Override public void start(Stage primaryStage){ BorderPane mainPane = new BorderPane(); Button b = new Button("Register"); mainPane.setCenter(b); b.setOnAction(new EventHandler<ActionEvent>(){ public void handle(ActionEvent t){ primaryStage.setScene(secondScene(primaryStage)); } }); primaryStage.setScene(new Scene(mainPane, 300,300)); primaryStage.show(); } </code></pre> <p>This will change to "SecondScene" when the button is pressed.</p> <p>EDIT //////////////////////////////////////// BASICALLY:</p> <p>you need to pass in primaryStage as an argument to SecondScene in order to set another Scene onto it. What you could do in this case is, make a method that outputs the main scene and then set it using that.</p> <pre><code>public static Scene mainScene(final Stage primaryStage){ ..... return new Scene(...); } </code></pre>

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