MoviesDB_Client/out/production/JavaFxApplication/com/moviesdb/sample.fxml

<?import javafx.geometry.Insets?>
<?import javafx.scene.layout.GridPane?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<GridPane fx:controller="com.moviesdb.Controller"
          xmlns:fx="http://javafx.com/fxml" alignment="center" hgap="10" vgap="10">
    <Label fx:id="mainTitle" text="Hello world!"/>
</GridPane>