JavaFX: Strange case with DataView fill operation - javafx

Question

I have a very strange problem with my test application. I need to fill the JavaFX TableView element with some data. Here is the code:
fxmldocumentController.java
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Label;
import javafx.scene.control.TableView; //A
import javafx.scene.control.TableColumn; //B
import javafx.scene.control.cell.PropertyValueFactory; //C
public class fxmldocumentController implements Initializable
{
#FXML
private TableView<employees> mainTableView;
#FXML
private TableColumn<employees, Integer> age;
#FXML
private TableColumn<employees, String> userName, companyName;
#Override
public void initialize(URL url, ResourceBundle rb)
{
// TODO:
mainTableView.getItems().
add(new employees("Yuri P. Bodrov", "VMware", 35));
mainTableView.getItems().
add(new employees("Ivan Y. Bodrov", "VMware", 5));
mainTableView.getItems().
add(new employees("Peter Y. Bodrov", "VMware", 2));
// A problem starts here:
age.setCellValueFactory(new PropertyValueFactory<>("age"));
userName.setCellValueFactory(new PropertyValueFactory<>("userName"));
companyName.
setCellValueFactory(new PropertyValueFactory<>("companyName"));
}
}
fxmldocument.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane id="AnchorPane" prefHeight="300.0" prefWidth="400.0" style="-fx-
background-color: white;"
xmlns="http://javafx.com/javafx/8"
xmlns:fx="http://javafx.com/fxml/1"
fx:controller="sampletableviewapp00.fxmldocumentController">
<children>
<Label fx:id="testLabel" layoutX="14.0" layoutY="14.0" style="-fx-
background-color: white;" text="Employees. TableView." textFill="#505050">
<font>
<Font size="14.0" />
</font>
</Label>
<TableView fx:id="mainTableView" layoutX="12.0" layoutY="50.0"
prefHeight="200.0" prefWidth="377.0">
<columns>
<TableColumn prefWidth="90.0" text="UserName" />
<TableColumn prefWidth="119.0" text="CompanyName" />
<TableColumn prefWidth="84.0" text="Age" />
</columns>
</TableView>
</children>
</AnchorPane>
Sampletableviewapp00.java
package sampletableviewapp00;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class Sampletableviewapp00 extends Application
{
#Override
public void start(Stage stage) throws Exception
{
Parent root = FXMLLoader.load(getClass().
getClassLoader().getResource("fxmldocument.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args)
{
launch(args);
}
}
employees.java
package sampletableviewapp00;
public class employees
{
String userName, companyName;
int age;
// Generate Properties. Getters:
public int GetAge()
{
return age;
}
public String GetUserName()
{
return userName;
}
public String GetCompanyName()
{
return companyName;
}
// Generate Properties. Setters:
public void SetAge(int age)
{
this.age = age;
}
public void SetUserName(String userName)
{
this.userName = userName;
}
public void SetCompanyName(String companyName)
{
this.companyName = companyName;
}
// Generate Constructor of Employees class:
public employees(String userName, String companyName, int age)
{
this.userName = userName;
this.companyName = companyName;
this.age = age;
}
}
When I run this application the NetBeans IDE 8.2 returns this stack of exceptions/errors: see outputError.png as attachment
outputError.png
outputError02.PNG
Dear colleagues! Do you have any ideas to resolve this problem? Could you try to write this code by yourself and run? Thanks in advance! :-)

Answer 1

You have fxmldocument.xml but tried to load "fxmldocument.fxml".
Rename the file to have fxml extension.
Also make sure you put the fxml file under /resources/yourpackagepath/ folder and load as:
Sampletableviewapp00.class.getResource("fxmldocument.fxml")

Answer 2

This line is triggering the exception:
Parent root = FXMLLoader.load(getClass().
getClassLoader().getResource("fxmldocument.fxml"));
Your fxml document's extension is xml in your project and you are trying to load it as .fxml in the above line.
Rename fxmldocument.xml to fxmldocument.fxml.