this is my fxml code:

This is my controller code:

package com.example.helloworldfx;

import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.control.SelectionMode;

import java.net.URL;
import java.util.ResourceBundle;

public class HelloController implements Initializable {

@FXML
private ListView lista;



[@Override](https://www.codeproject.com/Members/OverRide)
public void initialize(URL url, ResourceBundle resourceBundle) {
    String b = "marcos";
    String c = "marcos";
    String d = "marcos";
    String e = "marcos";

    lista = new ListView<>();
    lista.getItems().setAll(b, c,d,e);
    lista.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);


}

This is my main class code:

package com.example.helloworldfx;

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

import java.io.IOException;

public class HelloApplication extends Application {
@Overri