While making own JOptionPane like class in JavaFX [duplicate] - javafx

I get
javafx.fxml.LoadException:
When I'm loading and fxml file using following line of code.
AnchorPane anchorPane = (AnchorPane)loader.load()
This is my fxml file excluding import statements.
<AnchorPane prefHeight="537.0" prefWidth="374.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.buddhikajay.controller.NewTransactionDialogController">
<children>
<GridPane hgap="5.0" layoutX="30.0" layoutY="10.0" prefHeight="544.0" prefWidth="314.0" vgap="5.0">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="142.0" minWidth="10.0" prefWidth="69.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="226.0" minWidth="10.0" prefWidth="225.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints maxHeight="70.0" minHeight="10.0" prefHeight="33.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="105.0" minHeight="10.0" prefHeight="38.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="156.0" minHeight="10.0" prefHeight="51.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="154.0" minHeight="10.0" prefHeight="43.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="160.0" minHeight="10.0" prefHeight="43.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="161.0" minHeight="10.0" prefHeight="63.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="301.0" minHeight="10.0" prefHeight="180.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="231.0" minHeight="10.0" prefHeight="106.0" vgrow="SOMETIMES" />
</rowConstraints>
<padding>
<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
</padding>
<children>
<Label text="ID" />
<Label text="Date" GridPane.rowIndex="1" />
<Label text="Amont" GridPane.rowIndex="2" />
<Label text="Person" GridPane.rowIndex="4" />
<Label text="Type" GridPane.rowIndex="3" />
<Label text="Resolved" GridPane.rowIndex="5" />
<Label />
<Label text="Description" GridPane.rowIndex="6" />
<TextField fx:id="idTextField" GridPane.columnIndex="1" />
<TextField fx:id="dateTextField" GridPane.columnIndex="1" GridPane.rowIndex="1" />
<TextField fx:id="amountTextField" GridPane.columnIndex="1" GridPane.rowIndex="2" />
<TextArea fx:id="descriptionTextArea" prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="1" GridPane.rowIndex="6" />
<HBox maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="50.0" prefWidth="225.0" spacing="20.0" GridPane.columnIndex="1" GridPane.rowIndex="7">
<GridPane.margin>
<Insets />
</GridPane.margin>
<padding>
<Insets bottom="10.0" left="20.0" right="10.0" top="10.0" />
</padding>
<children>
<Button fx:id="okButton" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" mnemonicParsing="false" onAction="#okActionFired" prefHeight="25.0" prefWidth="75.0" text="Ok" />
<Button fx:id="cancleButton" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" mnemonicParsing="false" onAction="#cancleActionFired" prefHeight="25.0" prefWidth="75.0" text="Cancle" />
</children>
</HBox>
<ComboBox fx:id="typeComboBox" prefWidth="150.0" GridPane.columnIndex="1" GridPane.rowIndex="3" />
<ComboBox fx:id="personComboBox" prefWidth="150.0" GridPane.columnIndex="1" GridPane.rowIndex="4" />
<ComboBox fx:id="resolvedComboBox" prefWidth="150.0" GridPane.columnIndex="1" GridPane.rowIndex="5" />
</children>
</GridPane>
</children>
</AnchorPane>
The compiler complains that there is an error in line number 1. I'm sure that the path of fxml file is correct. What is wrong with my code?
Here is the full error stack
javafx.fxml.LoadException:
/C:/Users/Buddhika/Documents/Programming/IdeaProjects/VirtualCreditDesktop/out/production/VirtualCreditDesktop/com/buddhikajay/view/NewTransactionDialog.fxml:9
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2595)
at javafx.fxml.FXMLLoader.access$700(FXMLLoader.java:104)
at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:928)
at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(FXMLLoader.java:967)
at javafx.fxml.FXMLLoader$Element.processStartElement(FXMLLoader.java:216)
at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:740)
at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2701)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2521)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2435)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2403)
at com.buddhikajay.controller.NewTransactionDialogController.showNewTransactionDialog(NewTransactionDialogController.java:68)
at com.buddhikajay.controller.MainApp.start(MainApp.java:51)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$153(LauncherImpl.java:821)
at com.sun.javafx.application.LauncherImpl$$Lambda$50/1976027283.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$166(PlatformImpl.java:323)
at com.sun.javafx.application.PlatformImpl$$Lambda$46/301541210.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$null$164(PlatformImpl.java:292)
at com.sun.javafx.application.PlatformImpl$$Lambda$48/474926796.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$165(PlatformImpl.java:291)
at com.sun.javafx.application.PlatformImpl$$Lambda$47/1662429848.run(Unknown Source)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$141(WinApplication.java:102)
at com.sun.glass.ui.win.WinApplication$$Lambda$38/519284171.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.InstantiationException: com.buddhikajay.controller.NewTransactionDialogController
at java.lang.Class.newInstance(Class.java:423)
at sun.reflect.misc.ReflectUtil.newInstance(ReflectUtil.java:51)
at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:923)
... 23 more
Caused by: java.lang.NoSuchMethodException: com.buddhikajay.controller.NewTransactionDialogController.<init>()
at java.lang.Class.getConstructor0(Class.java:3074)
at java.lang.Class.newInstance(Class.java:408)
... 25 more

The problem is described in the stack trace:
Caused by: java.lang.NoSuchMethodException: com.buddhikajay.controller.NewTransactionDialogController.()
which basically says your controller class doesn't have a zero-argument constructor.
By default, the FXMLLoader will create the controller by calling its zero-argument constructor. Remove the constructor that you have defined in the controller class, or remove the parameters that it takes.
If you really need to pass arguments to the controller's constructor, you can either create the controller in Java code and pass it to the FXMLLoader:
NewTransactionDialogController controller = new NewTransactionDialogController(someValue);
FXMLLoader loader = new FXMLLoader();
loader.setLocation(...);
loader.setController(controller);
AnchorPane anchorPane = loader.load();
(Using this code, you must remove the fx:controller attribute from the FXML.)
Or, set a controller factory:
FXMLLoader loader = new FXMLLoader();
loader.setLocation(...);
loader.setControllerFactory(clazz -> {
if (clazz == NewTransactionDialogController.class) {
return new NewTransactionDialogController(someValue);
} else {
// default behavior:
try {
return clazz.newInstance();
} catch (Exception exc) {
throw new RuntimeException(exc);
}
}
});
AnchorPane anchorPane = loader.load();
(In this version, leave the fx:controller attribute in the FXML file.)

I was about to enter a different question as remarked by #James_D for my comment because Until I Read the first line of the FXML on this question, I had thought that I had a different problem.
For my sins, I reduced the challenge to a simple example of a single controller and two FXML files. One worked and the second fail/failed.
The starting point is the Netbeans sample "[Click me!]" sample. The code is pasted below. And, first a solution.
As preamble, let me say that it seems that everyone has been blaming the Java controller for these load errors. I had a bunch of errors like this on a project a couple of years ago. We exhausted "controller" debugging and eventually pressed-forward by re-building the FXML screens with ScendBuilder. I didn't have time to investigate further then.
Last week I perfectly working FXML screen started failing to load because we moved it to a runtime directory (previously it was in the JAR resources area).
KLUNK!
After 3 or 4 days tweaking that and this, I made a comment here on my error:
unknown path: 7
Javafx fxml LoadException: Error resolving onAction='#handleButtonAction', either the event handler is not in the Namespace or there is an error in the script.
On only the "simple.fxml" file, but not the "Scene.fxml" file. The file "simple.fxml" is reduced from the app FXML file that initially gave the problem. There were too many variables on that original file, so chop-chop-chop to match the canned demo.
When you use ONLY this:
xmlns:fx="http://javafx.com/fxml"
FXML load-s from files on disk under in your application folder work just like you want them to (well, like I want, anyway). Looking at the FXML above it is using a more 'fragile' namespace, viz.
Queston's original FXML:
<AnchorPane ...
xmlns="http://javafx.com/javafx/8"
xmlns:fx="http://javafx.com/fxml/1" ... >
By using diff, I slowly morphed "simple.fxml" to be as close as possible to "Scene.fxml", and "simple" just keeps failing to load. Please note; always using the same controller
Loading FXML with other metadata has not worked consistently an FXML file was moved. I don't have an explanation as to how this is so.
The FXML is kept in a directory called "test/resources/fxml/simple.fxml" for example. When I was building with both files in the project JAR, the 'same' FXML in both cases loaded and worked as expected. To me there's something un-said about aspects of the file load precess. Again for me, this is undesirable because the KEY value of a external scene definition would be interchange.
These kind of bear traps in XML mark-up that are (apparently) not picked up by development tools like SceneBuilder or the FXMLLoader() are barriers to progress on live projects that don't have slack to investigate esoteric weirdness like this.
This is witnessed by our previous project experience -- I was easier to re-edit a complex screen with SceneBuilder as a whole than track down load problems like this one. The call to action is: Diagnostics on FXML load -- an FXML Lint would be almost a requirement.
Controller, SimpleController.java:
package ex.view.views;
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;
public class SimpleController implements Initializable {
#FXML
private Label label;
#FXML
private void handleButtonAction(ActionEvent event) {
System.out.println("You clicked me!");
label.setText("Hello World!");
}
#Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
}
The failing FXML started life as one of the Maven archetypes (I think) and that file worked fine until I moved the FXML files to a folder and loaded them from a InputStream.
I have formatted the AnchorPane markup on multiple lines for readability.
simple.fxml:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane id="AnchorPane" prefHeight="200" prefWidth="320"
xmlns="http://javafx.com/javafx/8.0.65"
xmlns:fx="http://javafx.com/fxml/1"
fx:controller="ex.view.views.SimpleController">
<children>
<Button fx:id="button" layoutX="126" layoutY="90" text="Click Me!" />
<Label fx:id="label" layoutX="126" layoutY="120" minHeight="16" minWidth="69" />
</children>
</AnchorPane>
The working FXML mark-up is from the Netbeans 8.1 samples.
Scene.fxml:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane id="AnchorPane" prefHeight="200" prefWidth="320"
xmlns:fx="http://javafx.com/fxml"
fx:controller="ex.view.views.SimpleController">
<children>
<Button layoutX="126" layoutY="90" text="Click Me!" onAction="#handleButtonAction" fx:id="button" />
<Label layoutX="126" layoutY="120" minHeight="16" minWidth="69" fx:id="label" />
</children>
</AnchorPane>

Related

Why javafx program is not running when i use fontawesomefx icons in fxml [duplicate]

This question already has an answer here:
javaFX program not working after changing the scene builder and jdk
(1 answer)
Closed 4 months ago.
I am new to javafx.Currently I am developing a miniproject.I am designing it's UI in scene builder-18.0.0.
I have added fontawesomefx jar file to reference library.
When I use fontawesomefx icons to my project, it's shows the following Exception.If I remove the icons, the program runs fine.
Result
Exception in Application start method
java.lang.reflect.InvocationTargetExceptionf
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:119)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at javafx.graphics#18.0.2/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:465)
at javafx.graphics#18.0.2/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:577)
at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1081)
Caused by: java.lang.RuntimeException: Exception in Application start method
at javafx.graphics#18.0.2/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:901)
at javafx.graphics#18.0.2/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/parser/CSSParser
at de.jensd.fx.glyphs.GlyphIcon.<clinit>(GlyphIcon.java:49)
at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized0(Native Method)
at java.base/jdk.internal.misc.Unsafe.ensureClassInitialized(Unsafe.java:1160)
at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.ensureClassInitialized(MethodHandleAccessorFactory.java:300)
at java.base/jdk.internal.reflect.MethodHandleAccessorFactory.newConstructorAccessor(MethodHandleAccessorFactory.java:103)
at java.base/jdk.internal.reflect.ReflectionFactory.newConstructorAccessor(ReflectionFactory.java:236)
at java.base/java.lang.reflect.Constructor.acquireConstructorAccessor(Constructor.java:546)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:496)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:483)
at javafx.fxml#18.0.2/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1020)
at javafx.fxml#18.0.2/javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:757)
at javafx.fxml#18.0.2/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2808)
at javafx.fxml#18.0.2/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2634)
at javafx.fxml#18.0.2/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml#18.0.2/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2516)
at App.start(App.java:19)
at javafx.graphics#18.0.2/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:847)
at javafx.graphics#18.0.2/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:484)
at javafx.graphics#18.0.2/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at javafx.graphics#18.0.2/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456)
at javafx.graphics#18.0.2/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics#18.0.2/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics#18.0.2/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:184)
... 1 more
Caused by: java.lang.ClassNotFoundException: com.sun.javafx.css.parser.CSSParser
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 25 more
Exception running application App
My Fxml code
<?xml version="1.0" encoding="UTF-8"?>
<?import de.jensd.fx.glyphs.fontawesome.FontAwesomeIconView?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.ListView?>
<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.FlowPane?>
<?import javafx.scene.layout.Pane?>
<?import javafx.scene.layout.StackPane?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Font?>
<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="609.0" prefWidth="932.0" styleClass="holder" stylesheets="#TableStyle.css" xmlns="http://javafx.com/javafx/18" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Pane layoutY="7.0" prefHeight="28.0" prefWidth="932.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<children>
<Label layoutX="17.75" layoutY="3.0" styleClass="app-title" text="Hello Tables" textFill="WHITE">
<font>
<Font size="15.0" />
</font>
</Label>
</children>
</Pane>
<AnchorPane layoutX="14.0" layoutY="28.0" prefHeight="200.0" prefWidth="256.0" styleClass="sideview" AnchorPane.bottomAnchor="7.0" AnchorPane.leftAnchor="7.0" AnchorPane.topAnchor="28.0">
<children>
<StackPane alignment="CENTER_RIGHT" layoutX="17.0" layoutY="48.0" AnchorPane.leftAnchor="35.6" AnchorPane.topAnchor="45.0">
<children>
<TextField promptText="Search here" styleClass="txt-field" />
</children>
</StackPane>
<ListView layoutX="28.0" layoutY="131.0" prefHeight="200.0" prefWidth="200.0" styleClass="listview" AnchorPane.bottomAnchor="110.0" AnchorPane.topAnchor="125.0" />
<StackPane layoutX="17.0" layoutY="514.0" prefHeight="30.0" prefWidth="222.0" AnchorPane.bottomAnchor="29.600000000000023">
<children>
<Button maxHeight="-Infinity" maxWidth="-Infinity" mnemonicParsing="false" prefHeight="30.0" prefWidth="145.0" styleClass="btn-new-table" />
<Label styleClass="txt-new-table" text="NEW TABLE" />
</children>
</StackPane>
<FontAwesomeIconView layoutX="111.0" layoutY="293.0" />
</children>
</AnchorPane>
<AnchorPane layoutX="316.0" layoutY="38.0" prefHeight="200.0" prefWidth="200.0" styleClass="sideview" AnchorPane.bottomAnchor="7.0" AnchorPane.leftAnchor="267.0" AnchorPane.rightAnchor="7.0" AnchorPane.topAnchor="28.0">
<children>
<Label layoutX="27.0" layoutY="69.0" text="NOTES" AnchorPane.leftAnchor="27.0" AnchorPane.topAnchor="69.0">
<font>
<Font name="System Bold" size="21.0" />
</font>
</Label>
<StackPane layoutX="27.0" layoutY="126.0" prefHeight="353.0" prefWidth="611.0" AnchorPane.bottomAnchor="96.0" AnchorPane.leftAnchor="27.0" AnchorPane.rightAnchor="20.0" AnchorPane.topAnchor="125.0">
<children>
<Label alignment="TOP_LEFT" prefHeight="75.0" prefWidth="214.0" styleClass="txt-no-table" text="NO TABLE SELECTED" textAlignment="CENTER" StackPane.alignment="CENTER">
<font>
<Font name="Roboto" size="16.799999237060547" />
</font>
</Label>
<AnchorPane prefHeight="200.0" prefWidth="200.0">
<children>
<Pane layoutY="41.0" prefHeight="200.0" prefWidth="200.0" styleClass="table-holder" AnchorPane.bottomAnchor="25.0" AnchorPane.leftAnchor="1.0" AnchorPane.rightAnchor="106.5" AnchorPane.topAnchor="2.0" />
<TableView prefHeight="353.0" prefWidth="503.0" AnchorPane.bottomAnchor="5.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="95.0" AnchorPane.topAnchor="0.0">
<columns>
<TableColumn prefWidth="75.0" text="NAME" />
<TableColumn prefWidth="75.0" text="AGE" />
</columns>
<columnResizePolicy>
<TableView fx:constant="CONSTRAINED_RESIZE_POLICY" />
</columnResizePolicy>
</TableView>
<VBox alignment="CENTER" layoutX="556.0" layoutY="27.0" prefHeight="327.0" prefWidth="48.0" AnchorPane.bottomAnchor="27.0" AnchorPane.rightAnchor="5.0" AnchorPane.topAnchor="0.0">
<children>
<FlowPane alignment="CENTER" orientation="VERTICAL" prefHeight="315.0" prefWidth="55.0" styleClass="toolbar" />
</children>
</VBox>
</children>
</AnchorPane>
</children></StackPane>
<FlowPane alignment="CENTER_LEFT" hgap="10.0" layoutX="27.0" layoutY="432.0" prefHeight="102.0" prefWidth="490.0" vgap="10.0" AnchorPane.bottomAnchor="1.0" AnchorPane.leftAnchor="27.0" AnchorPane.rightAnchor="141.0">
<children>
<TextField promptText="Search here" styleClass="txt-field" />
</children>
</FlowPane>
<StackPane layoutX="422.0" layoutY="499.0" maxHeight="-Infinity" prefHeight="30.0" prefWidth="153.0" AnchorPane.bottomAnchor="30.0" AnchorPane.rightAnchor="120.0">
<children>
<Button maxHeight="-Infinity" maxWidth="-Infinity" mnemonicParsing="false" prefHeight="30.0" prefWidth="131.0" styleClass="btn-new-table" />
<Label styleClass="txt-new-table" text="ADD ROW" />
</children>
</StackPane>
</children>
</AnchorPane>
</children>
</AnchorPane>
Java(Main class)
import java.io.IOException;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import javafx.stage.StageStyle;
public class App extends Application{
#Override
public void start(Stage stage) throws Exception {
FXMLLoader loader = new FXMLLoader(getClass().getResource("TableAppInterface.fxml"));
System.out.println("hi");
Parent root = null;
try {
root = loader.load();
} catch (IOException e) {
e.printStackTrace();
}
Scene scene = new Scene(root);
stage.setScene(scene);
//stage.initStyle(StageStyle.TRANSPARENT);
stage.setTitle("Tables");
stage.show();
}
public static void main(String[] args) throws Exception {
launch(args);
}
}
launch.json
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"type": "java",
"name": "Launch Current File",
"request": "launch",
"mainClass": "${file}"
},
{
"type": "java",
"name": "Launch App",
"request": "launch",
"mainClass": "App",
"projectName": "TableApp_e71931e0",
"vmArgs": "--module-path \"C:/Program Files/Java/javafx-sdk-18.0.2/lib\" --add-modules javafx.controls,javafx.fxml"
}
]
}
I also tried with the following vmArgs
"vmArgs": "--module-path \"C:/Program Files/Java/javafx-sdk-18.0.2/lib\" --add-modules javafx.controls,javafx.fxml \ --add-opens javafx.graphics/javafx.css=ALL-UNNAMED"
I also visited this post and used fontawesomfx 8.4.but it didn't work.It shows the same exception.
Currently I am using java 18(jdk-18.0.2) and javafx-sdk-18.0.2 and SceneBuilder-18.0.0 and fontawesomefx 8.9 jar.I use visual studio code.I am not using any built tools for my project.
NOTE:If I run the code without any fontawesomefx icons, my code works fine.
I have been searching the solution for this problem for an entire day.Please explain me what is the problem and how to solve it.I want to use fontawesomeicons in my project.How to do it?
Thank you
You need to upgrade the version of fontawesomefx you are using to be compatible with your java version.
See the answer to this question, I believe your problem is the same as this person was seeing.

TextField textProperty Listener across embedded scenes JavaFX

This may be a little convoluted but please bear with me.
I have 3 scenes built using SceneBuilder. The first ("Main") I am using as the parent scene. This scene contains 1 AnchorPane which holds a TabPane and a ToolBar which holds 3 Buttons ("Previous", "Next" and "Close").
The second scene ("PersonaDetails") contains an AnchorPane, a GridPane a number of Textflow (which I am using as field labels) several TextField and DatePicker. This whole scene is embedded into one of the tabs on the TabPane on the first scene ("Main").
The third scene ("Address") is very similar to the second where it contains an AnchorPane, a GridPane a number of Textflow (which I am using as field labels) several TextField and ComboBox. This whole scene is embedded into the other tab on the TabPane on the first scene ("Main").
(I have included the FXML script for each below)
The application will later include additional scenes on additional tab on the TabPane on the first scene ("Main"). This application will form part of larger application and is meant to be a kind of wizard that allows new clients to be registered.
Furthermore, each FXML file and its Controller are in separate packages.
This issue I am having is that I need to add .textProperty() listeners on several of the Textfield so that I can enable, or disable the "Next" Button on the first, or parent, scene ("Main").
I have tried the following code in the MainController class, but it does not work, although it does not generate any errors.
package com.yas.registrationwizard.main;
import com.yas.registrationwizard.personaldetails.PersonalDetailsController;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.TabPane;
import javafx.scene.control.ToolBar;
import javafx.scene.layout.AnchorPane;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
public class MainController implements Initializable {
#FXML AnchorPane apMain;
#FXML ToolBar tbMain;
#FXML TabPane tpMain;
#FXML Button btnPrevious;
#FXML Button btnNext;
#FXML Button btnClose;
#Override
public void initialize(URL location, ResourceBundle resources) {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("../personaldetails/PersonalDetails.fxml"));
try {
fxmlLoader.load();
} catch (IOException e) {
e.printStackTrace();
}
PersonalDetailsController personalDetailsController = fxmlLoader.getController();
personalDetailsController.tfFirstName.textProperty().addListener((obs, oldVal, newVal) -> {
if(newVal.equals("")) {
btnNext.setDisable(true);
} else {
btnNext.setDisable(false);
}
});
}
}
The FXML scripts are as follows:
Main
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane fx:id="apMain" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.yas.registrationwizard.main.MainController">
<children>
<ToolBar fx:id="tbMain" layoutX="259.0" layoutY="339.0" prefHeight="40.0" prefWidth="200.0" AnchorPane.bottomAnchor="5.0" AnchorPane.leftAnchor="5.0" AnchorPane.rightAnchor="5.0" AnchorPane.topAnchor="355.0">
<items>
<Pane prefHeight="30.0" prefWidth="370.0" />
<Button fx:id="btnPrevious" maxHeight="25.0" maxWidth="65.0" minHeight="25.0" minWidth="65.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="65.0" text="Previous" />
<Button fx:id="btnNext" layoutX="10.0" layoutY="13.0" maxHeight="25.0" maxWidth="65.0" minHeight="25.0" minWidth="65.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="65.0" text="Next" />
<Button fx:id="btnClose" layoutX="66.0" layoutY="13.0" maxHeight="25.0" maxWidth="65.0" minHeight="25.0" minWidth="65.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="65.0" text="Close" />
</items>
</ToolBar>
<TabPane fx:id="tpMain" layoutX="14.0" layoutY="14.0" prefHeight="335.0" prefWidth="200.0" tabClosingPolicy="UNAVAILABLE" AnchorPane.bottomAnchor="50.0" AnchorPane.leftAnchor="5.0" AnchorPane.rightAnchor="5.0" AnchorPane.topAnchor="5.0">
<tabs>
<Tab fx:id="tabPersonalDetails" text="Personal Deatils">
<content>
<fx:include fx:id="apPersonalDetails" source="../personaldetails/PersonalDetails.fxml" />
</content></Tab>
<Tab fx:id="tabAddress" text="Address">
<content>
<fx:include fx:id="apAddress" source="../address/Address.fxml" />
</content></Tab>
</tabs>
</TabPane>
</children>
</AnchorPane>
Address
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane fx:id="apAddress" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="325.0" prefWidth="590.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.yas.registrationwizard.address.AddressController">
<children>
<GridPane fx:id="gpAddress" layoutX="195.0" layoutY="103.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="103.0" minWidth="3.0" prefWidth="82.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="219.0" minWidth="10.0" prefWidth="155.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="422.0" minWidth="10.0" prefWidth="274.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="93.0" minWidth="0.0" prefWidth="78.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<Label alignment="CENTER_RIGHT" contentDisplay="RIGHT" prefHeight="17.0" prefWidth="295.0" text="House Name / Number:" GridPane.columnIndex="1" GridPane.rowIndex="2">
<GridPane.margin>
<Insets right="10.0" />
</GridPane.margin></Label>
<Label alignment="CENTER_RIGHT" contentDisplay="RIGHT" prefHeight="17.0" prefWidth="246.0" text="Address Line 1:" GridPane.columnIndex="1" GridPane.rowIndex="3">
<GridPane.margin>
<Insets right="10.0" />
</GridPane.margin></Label>
<Label alignment="CENTER_RIGHT" contentDisplay="RIGHT" prefHeight="17.0" prefWidth="239.0" text="Address Line 2:" GridPane.columnIndex="1" GridPane.rowIndex="4">
<GridPane.margin>
<Insets right="10.0" />
</GridPane.margin></Label>
<Label alignment="CENTER_RIGHT" contentDisplay="RIGHT" prefHeight="17.0" prefWidth="234.0" text="Town / City:" GridPane.columnIndex="1" GridPane.rowIndex="5">
<GridPane.margin>
<Insets right="10.0" />
</GridPane.margin></Label>
<Label alignment="CENTER_RIGHT" contentDisplay="RIGHT" prefHeight="17.0" prefWidth="237.0" text="Region / County:" GridPane.columnIndex="1" GridPane.rowIndex="6">
<GridPane.margin>
<Insets right="10.0" />
</GridPane.margin></Label>
<TextField fx:id="tfHseNameNum" GridPane.columnIndex="2" GridPane.rowIndex="2" />
<TextField fx:id="tfAddLine1" GridPane.columnIndex="2" GridPane.rowIndex="3" />
<TextField fx:id="tfAddLine2" GridPane.columnIndex="2" GridPane.rowIndex="4" />
<TextField fx:id="tfTownCity" GridPane.columnIndex="2" GridPane.rowIndex="5" />
<TextField fx:id="tfRegionCounty" GridPane.columnIndex="2" GridPane.rowIndex="6" />
<Label alignment="CENTER_RIGHT" contentDisplay="RIGHT" prefHeight="17.0" prefWidth="234.0" text="Postcode:" GridPane.columnIndex="1" GridPane.rowIndex="7">
<GridPane.margin>
<Insets right="10.0" />
</GridPane.margin>
</Label>
<TextField fx:id="tfPostcode" GridPane.columnIndex="2" GridPane.rowIndex="7" />
<Label alignment="CENTER_RIGHT" contentDisplay="RIGHT" prefHeight="17.0" prefWidth="234.0" text="Country:" GridPane.columnIndex="1" GridPane.rowIndex="8">
<GridPane.margin>
<Insets right="10.0" />
</GridPane.margin>
</Label>
<ComboBox fx:id="cboCountry" prefHeight="25.0" prefWidth="294.0" GridPane.columnIndex="2" GridPane.rowIndex="8" />
</children>
</GridPane>
</children>
</AnchorPane>
PersonDetails
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.text.*?>
<?import javafx.geometry.*?>
<?import javafx.scene.paint.*?>
<?import javafx.scene.control.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<AnchorPane fx:id="apPersonalDetails" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="325.0" prefWidth="590.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.yas.registrationwizard.personaldetails.PersonalDetailsController">
<children>
<GridPane fx:id="gpPersonalDetails" layoutX="195.0" layoutY="103.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="80.0" minWidth="37.0" prefWidth="37.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="236.0" minWidth="10.0" prefWidth="236.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="422.0" minWidth="10.0" prefWidth="277.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="80.0" minWidth="38.0" prefWidth="41.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<TextField fx:id="tfFirstName" GridPane.columnIndex="2" GridPane.rowIndex="2" />
<TextField fx:id="tfMidNameInit" GridPane.columnIndex="2" GridPane.rowIndex="3" />
<TextField fx:id="tfLastName" GridPane.columnIndex="2" GridPane.rowIndex="4" />
<DatePicker fx:id="dpDoB" prefHeight="25.0" prefWidth="365.0" GridPane.columnIndex="2" GridPane.rowIndex="5" />
<TextField fx:id="tfNatInsNum" GridPane.columnIndex="2" GridPane.rowIndex="6" />
<TextFlow fx:id="tflFirstName" prefHeight="16.0" prefWidth="162.0" style="-fx-text-alignment: right;" styleClass="txtFlow" GridPane.columnIndex="1" GridPane.rowIndex="2">
<GridPane.margin>
<Insets right="10.0" top="10.0" />
</GridPane.margin></TextFlow>
<TextFlow fx:id="tflLastName" prefHeight="16.0" prefWidth="162.0" style="-fx-text-alignment: right;" styleClass="txtFlow" GridPane.columnIndex="1" GridPane.rowIndex="4">
<padding>
<Insets right="10.0" top="10.0" />
</padding>
</TextFlow>
<TextFlow fx:id="tflDoB" prefHeight="16.0" prefWidth="162.0" style="-fx-text-alignment: right;" styleClass="txtFlow" GridPane.columnIndex="1" GridPane.rowIndex="5">
<padding>
<Insets right="10.0" top="10.0" />
</padding>
</TextFlow>
<TextFlow fx:id="tflNatInsNum" prefHeight="16.0" prefWidth="162.0" style="-fx-text-alignment: right;" styleClass="txtFlow" GridPane.columnIndex="1" GridPane.rowIndex="6">
<padding>
<Insets right="10.0" top="10.0" />
</padding>
</TextFlow>
<TextFlow fx:id="tflMidNameInit" prefHeight="16.0" prefWidth="162.0" style="-fx-text-alignment: right;" styleClass="txtFlow" GridPane.columnIndex="1" GridPane.rowIndex="3">
<padding>
<Insets right="10.0" top="10.0" />
</padding>
</TextFlow>
</children>
</GridPane>
</children>
</AnchorPane>
The folder structure for the project is shown in the image below:
Firstly, I am bit confused with the wording "scene" in the question. I believe what you mentioned in the question is about handling the nodes, because all the fxmls are handled in the same Scene/Stage.
Anyway, the main problem of the issue lies in the MainController initialize method. You are loading a new instance of PersonalDetailsController and working on it, instead of working on the controller that is actually binded to MainController.
When including fxmls in an fxml, the sub fxml's controller will be already injected to the main fxml controller. So I believe changing your MainController code as below should work as expected.
Update: Sorry for a bit misleading info. The correct thing is, you need to inject the controller with a certain naming convention. If you are including an fxml using fx:include, to get the controller you need to inject with a naming convention <fxid>Controller and <fxid> for getting the node reference.
So considering your example, for the given fx:include line:
<fx:include fx:id="apPersonalDetails" source="../personaldetails/PersonalDetails.fxml" />
your code in MainController should be:
// For controller reference
#FXML PersonalDetailsController apPersonalDetailsController;
// For Node reference
#FXML AnchorPane apPersonalDetails;
So the updated code will be as below:
import com.yas.registrationwizard.personaldetails.PersonalDetailsController;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.TabPane;
import javafx.scene.control.ToolBar;
import javafx.scene.layout.AnchorPane;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
public class MainController implements Initializable {
#FXML AnchorPane apMain;
#FXML ToolBar tbMain;
#FXML TabPane tpMain;
#FXML Button btnPrevious;
#FXML Button btnNext;
#FXML Button btnClose;
#FXML PersonalDetailsController apPersonalDetailsController;
#Override
public void initialize(URL location, ResourceBundle resources) {
apPersonalDetailsController.tfFirstName.textProperty().addListener((obs, oldVal, newVal) -> {
if(newVal.equals("")) {
btnNext.setDisable(true);
} else {
btnNext.setDisable(false);
}
});
}
}

Error in Setting Vbox inside Border pane Center on click of button

I am designing an javafx application using BorderPane as Rootlayout inside the border pane there is button on left. on Click of which i need to set the borderpane(rootlayout) center to a different addprodct.fxml . i want to add a vbox on Click on Insert Button inside Center of BorderPane.
I checked if my fxml is getting loaded properly or not with this
System.out.println("view folder: " + RootController.class.getResource("/Views/AddProduct.fxml")); its print exact path to fxml. i tried to Setting Stage with the new fxml to see if it loads properly and it worked properly.
FXMLLoader loader = new FXMLLoader();
System.out.println("view folder: " + RootController.class.getResource("/Views/AddProduct.fxml"));
loader.setLocation(RootController.class.getResource( "/Views/AddProduct.fxml"));
tryvbox = loader.load();
main.getPrimaryStage().setScene(new Scene(tryvbox));
Yes, i know same question already have been asked but i implemented the solution given neither helped my problem.
Load new fxml in borderpane center
JavaFX: How to update the center view of a borderpane with new values
Main.java
package sample;
import Controllers.RootController;
import javafx.application.Application;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
import java.io.IOException;
public class Main extends Application {
#FXML
private BorderPane rootLayout;
private Stage primaryStage;
#Override
public void start(Stage primaryStage) throws Exception{
this.primaryStage = primaryStage;
mainwindow();
}
public void mainwindow() throws IOException {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("/Views/Rootlayout.fxml"));
rootLayout = loader.load();
RootController rootController = loader.getController();
rootController.setMain(this);
Scene scene= new Scene(rootLayout);
primaryStage.setTitle("Inventory Manager");
primaryStage.setScene(scene);
primaryStage.show();
}
public BorderPane getRootLayout() {
return rootLayout;
}
public Stage getPrimaryStage() {
return primaryStage;
}
public static void main(String[] args) {
launch(args);
}
}
RootController.java
package Controllers;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.control.Button;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.VBox;
import sample.Main;
import java.io.IOException;
public class RootController {
#FXML
private Button rootBtnInsrt;
#FXML
private Button rootBtnUpdate;
#FXML
private BorderPane rootLayout;
private Main main;
public void setMain(Main main) {
this.main = main;
}
#FXML
void btnInsrtClick(MouseEvent event) {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(RootController.class.getResource( "/Views/AddProduct.fxml"));
try {
VBox addProduct1 = loader.load();
} catch (IOException e) {
e.printStackTrace();
}
AddProductController addProductController= loader.getController();
addProductController.setMain(main);
main.getRootLayout().setCenter(rootLayout);
}
}
rootlayout.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Menu?>
<?import javafx.scene.control.MenuBar?>
<?import javafx.scene.control.MenuItem?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.VBox?>
<BorderPane fx:id="rootLayout" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="Controllers.RootController">
<top>
<MenuBar prefHeight="21.0" prefWidth="600.0" BorderPane.alignment="CENTER">
<menus>
<Menu mnemonicParsing="false" text="File">
<items>
<MenuItem mnemonicParsing="false" text="Close" />
</items>
</Menu>
<Menu mnemonicParsing="false" text="Edit">
<items>
<MenuItem mnemonicParsing="false" text="Delete" />
</items>
</Menu>
<Menu mnemonicParsing="false" text="Help">
<items>
<MenuItem mnemonicParsing="false" text="About" />
</items>
</Menu>
</menus>
</MenuBar>
</top>
<bottom>
<AnchorPane prefHeight="29.0" prefWidth="600.0" style="-fx-background-color: Black;" BorderPane.alignment="CENTER" />
</bottom>
<left>
<VBox alignment="CENTER" prefHeight="345.0" prefWidth="164.0" spacing="20.0" BorderPane.alignment="CENTER">
<children>
<Button fx:id="rootBtnInsrt" mnemonicParsing="false" onMouseClicked="#btnInsrtClick" prefHeight="50.0" prefWidth="132.0" text="Insert " />
<Button fx:id="rootBtnUpdate" mnemonicParsing="false" onMouseClicked="#btnUpdateClick" prefHeight="50.0" prefWidth="135.0" text="Update" />
<Button mnemonicParsing="false" prefHeight="50.0" prefWidth="158.0" text="View" />
</children>
<padding>
<Insets left="10.0" right="10.0" />
</padding>
</VBox>
</left>
</BorderPane>
Addproduct.fxml
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.ColumnConstraints?>
<?import javafx.scene.layout.GridPane?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.RowConstraints?>
<?import javafx.scene.layout.VBox?>
<VBox fx:id="addproduct" alignment="CENTER" prefHeight="249.0" prefWidth="400.0" xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1">
<children>
<Label alignment="CENTER" text="Add Product" VBox.vgrow="ALWAYS" />
<GridPane VBox.vgrow="ALWAYS">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" vgrow="SOMETIMES" />
</rowConstraints>
<children>
<Label text="Product Code" />
<Label text="Product Name :" GridPane.rowIndex="1" />
<Label text="Product Price :" GridPane.rowIndex="2" />
<Label text="Product Quantity :" GridPane.rowIndex="3" />
<TextField GridPane.columnIndex="1" />
<TextField GridPane.columnIndex="1" GridPane.rowIndex="1" />
<TextField GridPane.columnIndex="1" GridPane.rowIndex="2" />
<TextField GridPane.columnIndex="1" GridPane.rowIndex="3" />
</children>
<padding>
<Insets bottom="20.0" left="20.0" right="20.0" top="20.0" />
</padding>
</GridPane>
<HBox alignment="CENTER" spacing="30.0">
<children>
<Button alignment="CENTER" maxHeight="40.0" maxWidth="1.7976931348623157E308" mnemonicParsing="false" text="ADD" HBox.hgrow="ALWAYS" />
<Button alignment="CENTER" maxHeight="40.0" maxWidth="1.7976931348623157E308" mnemonicParsing="false" text="Reset" HBox.hgrow="ALWAYS" />
<Button maxHeight="40.0" maxWidth="1.7976931348623157E308" mnemonicParsing="false" text="Back" HBox.hgrow="ALWAYS" />
</children>
<padding>
<Insets bottom="20.0" left="20.0" right="20.0" />
</padding>
</HBox>
</children>
</VBox>
when tried running the following code i get error.
Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
Caused by: java.lang.reflect.InvocationTargetException
Caused by: java.lang.NullPointerException
all in same error pane
this is my directory structure.
Directory Structure
So basically after all the work and help the problem arose due to the Try/Catch block.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(RootController.class.getResource( "/Views/AddProduct.fxml"));
try {
VBox addProduct1 = loader.load();
}
catch (IOException e) {
e.printStackTrace();
}
i removed the try/catch and added exception to the method i.e void btnInsrtClick(MouseEvent event) throws IOException

How to change screens in javafx on detecting radiobutton choice inside a buttonclick listener?

Elaborating my question further, I am developing a question bank in JavaFX. At the home screen, I wish to provide navigation based on radiobutton choice inside a button click.
e.g. If I select a radiobutton choice, and click on the button to proceed ahead, it should direct me to the FXML screen file I have created. To further explain what I am trying to stay, below is the GUI snapshot.
Question Bank GUI Link
I am pasting my code below :
Main HomeScreen FXML File :
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.net.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<AnchorPane id="AnchorPane" prefHeight="548.0" prefWidth="721.0" styleClass="mainFxmlClass" xmlns:fx="http://javafx.com/fxml/1" xmlns="http://javafx.com/javafx/2.2" fx:controller="controller.HomefxmlController">
<children>
<GridPane alignment="CENTER" gridLinesVisible="false" layoutX="210.0" layoutY="149.0" prefHeight="171.0" prefWidth="373.0" visible="true">
<children>
<RadioButton fx:id="radioBlanks" alignment="CENTER" contentDisplay="CENTER" mnemonicParsing="false" onAction="#onRadioBlankClick" text="Fill in the Blank" GridPane.columnIndex="0" GridPane.halignment="LEFT" GridPane.rowIndex="0" GridPane.valignment="CENTER" />
<RadioButton fx:id="radioMcq" mnemonicParsing="false" onAction="#onRadioMcqClick" text="MCQ" GridPane.columnIndex="1" GridPane.halignment="LEFT" GridPane.rowIndex="0" />
<RadioButton fx:id="radioshortNote" alignment="CENTER" contentDisplay="CENTER" mnemonicParsing="false" onAction="#onRadioSNclick" text="ShortNote" GridPane.columnIndex="0" GridPane.halignment="LEFT" GridPane.rowIndex="1" />
<RadioButton fx:id="radioLongAnswer" mnemonicParsing="false" onAction="#onRadioLNclick" text="LongAnswer" GridPane.columnIndex="1" GridPane.halignment="LEFT" GridPane.rowIndex="1" />
<RadioButton fx:id="radioScenario" mnemonicParsing="false" onAction="#onRadioScenariocClick" text="Scenario" GridPane.columnIndex="0" GridPane.halignment="LEFT" GridPane.rowIndex="2" />
<RadioButton fx:id="radioTF" mnemonicParsing="false" onAction="#onRadioTFclick" text="True/False" GridPane.columnIndex="1" GridPane.halignment="LEFT" GridPane.rowIndex="2" />
</children>
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
<ColumnConstraints hgrow="SOMETIMES" minWidth="10.0" prefWidth="100.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
<RowConstraints minHeight="10.0" prefHeight="30.0" vgrow="SOMETIMES" />
</rowConstraints>
</GridPane>
<Label alignment="CENTER" layoutX="234.0" layoutY="47.0" prefHeight="73.0" prefWidth="211.0" text="Question Bank" textAlignment="CENTER" underline="true" wrapText="false">
<font>
<Font name="Chiller" size="35.0" />
</font>
</Label>
<Button fx:id="btnProceed" layoutX="275.0" layoutY="378.0" mnemonicParsing="false" onAction="#onBtntProceed" prefHeight="48.0" prefWidth="129.0" text="Proceed" textFill="#252285">
<font>
<Font name="Linux Libertine G Regular" size="20.0" />
</font>
</Button>
</children>
<stylesheets>
<URL value="#homefxml.css" />
</stylesheets>
</AnchorPane>
FXML Controller File :
package controller;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.control.Button;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.stage.Stage;
/**
* FXML Controller class
*
* #author Vishal
*/
public class HomefxmlController implements Initializable {
#FXML
private RadioButton radioBlanks;
#FXML
private RadioButton radioMcq;
#FXML
private RadioButton radioshortNote;
#FXML
private RadioButton radioLongAnswer;
#FXML
private RadioButton radioScenario;
#FXML
private RadioButton radioTF;
#FXML
private Button btnProceed;
ToggleGroup group;
/**
* Initializes the controller class.
*/
#Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
toggleGroupAssign();
}
public void toggleGroupAssign() {
group = new ToggleGroup();
radioBlanks.setToggleGroup(group);
radioMcq.setToggleGroup(group);
radioshortNote.setToggleGroup(group);
radioLongAnswer.setToggleGroup(group);
radioScenario.setToggleGroup(group);
radioTF.setToggleGroup(group);
}
#FXML
private void onBtntProceed(ActionEvent event) throws IOException {
// I am selecting just one checkbox at the moment for testing purpose..
if(radioTF.isSelected()){
FXMLLoader loader = new FXMLLoader(getClass().getResource("/view/tester.fxml"));
loader.load();
}
}
}
The PROBLEM is that NO ERROR appears at all. No compiletime error, no runtime, nothing ! It just doesn't work !
Kindly help me where exactly I am going wrong ?
loader.load() returns a Node, you don't assign
Take a look at this link
Loading new fxml in the same scene

Why I'm getting javafx.fxml.LoadException even the path of the fxml file is correct

I get
javafx.fxml.LoadException:
When I'm loading and fxml file using following line of code.
AnchorPane anchorPane = (AnchorPane)loader.load()
This is my fxml file excluding import statements.
<AnchorPane prefHeight="537.0" prefWidth="374.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.buddhikajay.controller.NewTransactionDialogController">
<children>
<GridPane hgap="5.0" layoutX="30.0" layoutY="10.0" prefHeight="544.0" prefWidth="314.0" vgap="5.0">
<columnConstraints>
<ColumnConstraints hgrow="SOMETIMES" maxWidth="142.0" minWidth="10.0" prefWidth="69.0" />
<ColumnConstraints hgrow="SOMETIMES" maxWidth="226.0" minWidth="10.0" prefWidth="225.0" />
</columnConstraints>
<rowConstraints>
<RowConstraints maxHeight="70.0" minHeight="10.0" prefHeight="33.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="105.0" minHeight="10.0" prefHeight="38.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="156.0" minHeight="10.0" prefHeight="51.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="154.0" minHeight="10.0" prefHeight="43.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="160.0" minHeight="10.0" prefHeight="43.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="161.0" minHeight="10.0" prefHeight="63.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="301.0" minHeight="10.0" prefHeight="180.0" vgrow="SOMETIMES" />
<RowConstraints maxHeight="231.0" minHeight="10.0" prefHeight="106.0" vgrow="SOMETIMES" />
</rowConstraints>
<padding>
<Insets bottom="5.0" left="5.0" right="5.0" top="5.0" />
</padding>
<children>
<Label text="ID" />
<Label text="Date" GridPane.rowIndex="1" />
<Label text="Amont" GridPane.rowIndex="2" />
<Label text="Person" GridPane.rowIndex="4" />
<Label text="Type" GridPane.rowIndex="3" />
<Label text="Resolved" GridPane.rowIndex="5" />
<Label />
<Label text="Description" GridPane.rowIndex="6" />
<TextField fx:id="idTextField" GridPane.columnIndex="1" />
<TextField fx:id="dateTextField" GridPane.columnIndex="1" GridPane.rowIndex="1" />
<TextField fx:id="amountTextField" GridPane.columnIndex="1" GridPane.rowIndex="2" />
<TextArea fx:id="descriptionTextArea" prefHeight="200.0" prefWidth="200.0" GridPane.columnIndex="1" GridPane.rowIndex="6" />
<HBox maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="50.0" prefWidth="225.0" spacing="20.0" GridPane.columnIndex="1" GridPane.rowIndex="7">
<GridPane.margin>
<Insets />
</GridPane.margin>
<padding>
<Insets bottom="10.0" left="20.0" right="10.0" top="10.0" />
</padding>
<children>
<Button fx:id="okButton" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" mnemonicParsing="false" onAction="#okActionFired" prefHeight="25.0" prefWidth="75.0" text="Ok" />
<Button fx:id="cancleButton" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" mnemonicParsing="false" onAction="#cancleActionFired" prefHeight="25.0" prefWidth="75.0" text="Cancle" />
</children>
</HBox>
<ComboBox fx:id="typeComboBox" prefWidth="150.0" GridPane.columnIndex="1" GridPane.rowIndex="3" />
<ComboBox fx:id="personComboBox" prefWidth="150.0" GridPane.columnIndex="1" GridPane.rowIndex="4" />
<ComboBox fx:id="resolvedComboBox" prefWidth="150.0" GridPane.columnIndex="1" GridPane.rowIndex="5" />
</children>
</GridPane>
</children>
</AnchorPane>
The compiler complains that there is an error in line number 1. I'm sure that the path of fxml file is correct. What is wrong with my code?
Here is the full error stack
javafx.fxml.LoadException:
/C:/Users/Buddhika/Documents/Programming/IdeaProjects/VirtualCreditDesktop/out/production/VirtualCreditDesktop/com/buddhikajay/view/NewTransactionDialog.fxml:9
at javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2595)
at javafx.fxml.FXMLLoader.access$700(FXMLLoader.java:104)
at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:928)
at javafx.fxml.FXMLLoader$InstanceDeclarationElement.processAttribute(FXMLLoader.java:967)
at javafx.fxml.FXMLLoader$Element.processStartElement(FXMLLoader.java:216)
at javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:740)
at javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2701)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2521)
at javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2435)
at javafx.fxml.FXMLLoader.load(FXMLLoader.java:2403)
at com.buddhikajay.controller.NewTransactionDialogController.showNewTransactionDialog(NewTransactionDialogController.java:68)
at com.buddhikajay.controller.MainApp.start(MainApp.java:51)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$153(LauncherImpl.java:821)
at com.sun.javafx.application.LauncherImpl$$Lambda$50/1976027283.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$166(PlatformImpl.java:323)
at com.sun.javafx.application.PlatformImpl$$Lambda$46/301541210.run(Unknown Source)
at com.sun.javafx.application.PlatformImpl.lambda$null$164(PlatformImpl.java:292)
at com.sun.javafx.application.PlatformImpl$$Lambda$48/474926796.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$165(PlatformImpl.java:291)
at com.sun.javafx.application.PlatformImpl$$Lambda$47/1662429848.run(Unknown Source)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$141(WinApplication.java:102)
at com.sun.glass.ui.win.WinApplication$$Lambda$38/519284171.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.InstantiationException: com.buddhikajay.controller.NewTransactionDialogController
at java.lang.Class.newInstance(Class.java:423)
at sun.reflect.misc.ReflectUtil.newInstance(ReflectUtil.java:51)
at javafx.fxml.FXMLLoader$ValueElement.processAttribute(FXMLLoader.java:923)
... 23 more
Caused by: java.lang.NoSuchMethodException: com.buddhikajay.controller.NewTransactionDialogController.<init>()
at java.lang.Class.getConstructor0(Class.java:3074)
at java.lang.Class.newInstance(Class.java:408)
... 25 more
The problem is described in the stack trace:
Caused by: java.lang.NoSuchMethodException: com.buddhikajay.controller.NewTransactionDialogController.()
which basically says your controller class doesn't have a zero-argument constructor.
By default, the FXMLLoader will create the controller by calling its zero-argument constructor. Remove the constructor that you have defined in the controller class, or remove the parameters that it takes.
If you really need to pass arguments to the controller's constructor, you can either create the controller in Java code and pass it to the FXMLLoader:
NewTransactionDialogController controller = new NewTransactionDialogController(someValue);
FXMLLoader loader = new FXMLLoader();
loader.setLocation(...);
loader.setController(controller);
AnchorPane anchorPane = loader.load();
(Using this code, you must remove the fx:controller attribute from the FXML.)
Or, set a controller factory:
FXMLLoader loader = new FXMLLoader();
loader.setLocation(...);
loader.setControllerFactory(clazz -> {
if (clazz == NewTransactionDialogController.class) {
return new NewTransactionDialogController(someValue);
} else {
// default behavior:
try {
return clazz.newInstance();
} catch (Exception exc) {
throw new RuntimeException(exc);
}
}
});
AnchorPane anchorPane = loader.load();
(In this version, leave the fx:controller attribute in the FXML file.)
I was about to enter a different question as remarked by #James_D for my comment because Until I Read the first line of the FXML on this question, I had thought that I had a different problem.
For my sins, I reduced the challenge to a simple example of a single controller and two FXML files. One worked and the second fail/failed.
The starting point is the Netbeans sample "[Click me!]" sample. The code is pasted below. And, first a solution.
As preamble, let me say that it seems that everyone has been blaming the Java controller for these load errors. I had a bunch of errors like this on a project a couple of years ago. We exhausted "controller" debugging and eventually pressed-forward by re-building the FXML screens with ScendBuilder. I didn't have time to investigate further then.
Last week I perfectly working FXML screen started failing to load because we moved it to a runtime directory (previously it was in the JAR resources area).
KLUNK!
After 3 or 4 days tweaking that and this, I made a comment here on my error:
unknown path: 7
Javafx fxml LoadException: Error resolving onAction='#handleButtonAction', either the event handler is not in the Namespace or there is an error in the script.
On only the "simple.fxml" file, but not the "Scene.fxml" file. The file "simple.fxml" is reduced from the app FXML file that initially gave the problem. There were too many variables on that original file, so chop-chop-chop to match the canned demo.
When you use ONLY this:
xmlns:fx="http://javafx.com/fxml"
FXML load-s from files on disk under in your application folder work just like you want them to (well, like I want, anyway). Looking at the FXML above it is using a more 'fragile' namespace, viz.
Queston's original FXML:
<AnchorPane ...
xmlns="http://javafx.com/javafx/8"
xmlns:fx="http://javafx.com/fxml/1" ... >
By using diff, I slowly morphed "simple.fxml" to be as close as possible to "Scene.fxml", and "simple" just keeps failing to load. Please note; always using the same controller
Loading FXML with other metadata has not worked consistently an FXML file was moved. I don't have an explanation as to how this is so.
The FXML is kept in a directory called "test/resources/fxml/simple.fxml" for example. When I was building with both files in the project JAR, the 'same' FXML in both cases loaded and worked as expected. To me there's something un-said about aspects of the file load precess. Again for me, this is undesirable because the KEY value of a external scene definition would be interchange.
These kind of bear traps in XML mark-up that are (apparently) not picked up by development tools like SceneBuilder or the FXMLLoader() are barriers to progress on live projects that don't have slack to investigate esoteric weirdness like this.
This is witnessed by our previous project experience -- I was easier to re-edit a complex screen with SceneBuilder as a whole than track down load problems like this one. The call to action is: Diagnostics on FXML load -- an FXML Lint would be almost a requirement.
Controller, SimpleController.java:
package ex.view.views;
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;
public class SimpleController implements Initializable {
#FXML
private Label label;
#FXML
private void handleButtonAction(ActionEvent event) {
System.out.println("You clicked me!");
label.setText("Hello World!");
}
#Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
}
The failing FXML started life as one of the Maven archetypes (I think) and that file worked fine until I moved the FXML files to a folder and loaded them from a InputStream.
I have formatted the AnchorPane markup on multiple lines for readability.
simple.fxml:
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane id="AnchorPane" prefHeight="200" prefWidth="320"
xmlns="http://javafx.com/javafx/8.0.65"
xmlns:fx="http://javafx.com/fxml/1"
fx:controller="ex.view.views.SimpleController">
<children>
<Button fx:id="button" layoutX="126" layoutY="90" text="Click Me!" />
<Label fx:id="label" layoutX="126" layoutY="120" minHeight="16" minWidth="69" />
</children>
</AnchorPane>
The working FXML mark-up is from the Netbeans 8.1 samples.
Scene.fxml:
<?xml version="1.0" encoding="UTF-8"?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane id="AnchorPane" prefHeight="200" prefWidth="320"
xmlns:fx="http://javafx.com/fxml"
fx:controller="ex.view.views.SimpleController">
<children>
<Button layoutX="126" layoutY="90" text="Click Me!" onAction="#handleButtonAction" fx:id="button" />
<Label layoutX="126" layoutY="120" minHeight="16" minWidth="69" fx:id="label" />
</children>
</AnchorPane>

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