package aaTester; import com.jfoenix.controls.JFXTabPane; import javafx.application.Application; import javafx.geometry.Side; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.scene.control.Tab; import javafx.scene.layout.BorderPane; import javafx.stage.Stage; public class Hello extends Application { /**Main Method * @param args */ public static void main(String args[]) { launch(args); } public void start(Stage primaryStage) { JFXTabPane tabPane = new JFXTabPane(); //Here trying to set the side tabPane.setSide(Side.LEFT); for(int i=0; i<4; i++) tabPane.getTabs().add(new Tab("Tab "+i,new Label("Imagicon"))); primaryStage.setScene(new Scene(new BorderPane(tabPane),400,400)); primaryStage.show(); } }