Getting an error as “Expression expected”?

Question

HiEveryone,

I'm a beginner in Javafx and learning it to make app from someone tutorials, Now the problem is .. it's giving me an error as Expression expected ? What's that mean ? Can anyone pls resolve my issue?..

Have a look into this SCREENSHOT .

here is my source codes:

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.stage.Stage;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.AnchorPane;

public class Main extends Application {

    Stage primaryStage;
    BorderPane rootLayout;

    @Override
    public void start(Stage primaryStage){
        this.primaryStage=primaryStage;
        primaryStage.setTitle("Address App");

        initSample2Layout();
        showSample();
    }

    public void initSample2Layout(){
        try{

            //here loading files from FXML..
            FXMLLoader loader=new FXMLLoader();
            loader.setLocation(Main.class.getResource("sample/Sample2.fxml"));
            rootLayout=(BorderPane).loader.load();
            Scene scene=new Scene(rootLayout);
            primaryStage.setScene(scene);
            primaryStage.show();

        }catch(Exception e){e.printStackTrace();}
    }

    public void showSample(){
        try{

            //here we're loading files from FXML..
            FXMLLoader loader2=new FXMLLoader();
            loader2.setLocation(Main.class.getResource("sample/sample.fxml"));
            AnchorPane ap=(AnchorPane).loader.load();
            rootLayout.setCenter(ap);

        }catch(Exception e){e.printStackTrace();}
    }

    public Stage getPrimaryStage(){
        return primaryStage;
    }

    public static void main(String[] args) {
        launch(args);
    }
}

Answer 1

This is not valid syntax :

rootLayout=(BorderPane).loader.load();

If you want to cast to BorderPane , do :

rootLayout=(BorderPane)loader.load();

And the same goes for AnchorPane ap=(AnchorPane).loader.load(); , which should be changes to AnchorPane ap=(AnchorPane)loader2.load(); .

Answer 2

You have rootLayout=(BorderPane).loader.load(); with an extra . character before loader .

You probably want the following:

rootLayout=(BorderPane) loader.load();