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Importing javaFX (.jar) files into a Netbeans Maven Project

I am trying to import javafx (.jar) files into a maven project. I have made a project with Netbeans (Java with Ant -> Java Application) and want to use the same code in Netbeans (Java with Maven -> Java Application). With Ant, I can easily import and use the (.jar) files, but this seems to be a blocked functionality with Maven.
Any solution to this?
I have looked up on several posts and guides online with no luck.
NOTE: Implementing .jar files within maven have been solved. The code does not work though.
Current Error: "Exception running application com.mycompany.ep_game_ref.Game Command execution failed."
package com.mycompany.ep_game_ref;
import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.image.Image;
import javafx.stage.Stage;
public class Game extends Application
{
public static String[] args;
public static Stage primarystage;
public static ObservableList<Items.Item> items = FXCollections.observableArrayList();
public static MainCentral startGame = new MainCentral();
public static Room.Introduction intro = new Room.Introduction();
public static Settings.Difficulty SETTINGS = new Settings.Difficulty();
public static Player player = new Player();
#Override
public void start(Stage stage)
{
this.primarystage = stage;
this.primarystage.setScene(new Scenes.Welcome().setWelcomeScene());
this.primarystage.getIcons().add(new Image("images/aq_logo.png"));
this.primarystage.setResizable(false);
this.primarystage.show();
}
public static void main(String[] args) {
Application.launch();
}
}

You can use JavaFX in a different way:
File>New Project>Maven>JavaFX Application.

Eclipse Could not find or load main class

Have been trying to set up JavaFX with Eclipse on Ubuntu. The code doesn't have an issue importing the javafx classes anymore (this took a LONG time to get working), but when running some simple test code, Eclipse can't seem to find the main class even when I right click on the file directly and run as Java Application.
package mainpackage;
import javafx.application.Application;
import javafx.stage.Stage;
public class Main extends Application {
#Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("Window");
primaryStage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
Error: Could not find or load main class mainpackage.Main
Caused by: java.lang.NoClassDefFoundError: javafx/application/Application

How to Fix NoClassDefFoundError in JavaFX?

I'm trying to build a small user interface using JavaFX, But I'm getting an error like this:
Error: Could not find or load main class myApp Caused by:
java.lang.NoClassDefFoundError: javafx/application/Application
This is my code:
and im using jdk 12.0.2
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class myApp extends Application{
public static void main(String[] args) {
Phonebook mybook = new Phonebook();
launch(args);
}
#Override
public void start(Stage primaryStage) throws Exception {
Group group = new Group();
Scene scene = new Scene(group, 600, 300);
scene.setFill(Color.GRAY);
primaryStage.setTitle("Phone Book");
primaryStage.setScene(scene);
primaryStage.show();
}
This is the Libraries and jdk I'm using:
Image1

I think JavaFX is not a part of the JDK > 9 any more. (Your version is 12.x.x)
Probably this could help you:
https://openjfx.io/openjfx-docs/#install-javafx
(Assuming you are using Maven) If this does not help, try to clean and build your Application.
Sometimes Maven does not recognize newly added dependencies.

Unable to change system string resource

I am making a Xposed Module that would allow users to modify the message displayed on the lock screen when Wrong pattern, pin or password is entered.
I am following this tutorial.
After digging into the android source code on GitHub, I found out the method that displays the message on the lock screen, that was onPatternChecked() in the class com.android.keyguard.KeyguardPatternView.java. The method uses the kg_wrong_pattern string resource which has the value Wrong Pattern when wrong pattern is drawn.
This is how my class looks like:-
package com.batrashubham.customlockscreenerrormessage;
import android.content.res.XResources;
import de.robv.android.xposed.IXposedHookInitPackageResources;
import de.robv.android.xposed.IXposedHookZygoteInit;
import de.robv.android.xposed.XposedBridge;
import de.robv.android.xposed.callbacks.XC_InitPackageResources;
/**
* Created by shubham on 19/7/16.
*/
public class CustomErrorMessage implements IXposedHookInitPackageResources,IXposedHookZygoteInit {
#Override
public void initZygote(StartupParam startupParam) throws Throwable {
XResources.setSystemWideReplacement("android","bool","config_unplugTurnsOnScreen",false);
}
#Override
public void handleInitPackageResources(XC_InitPackageResources.InitPackageResourcesParam resparam) throws Throwable {
if(!resparam.packageName.equals("com.android.keyguard")){
return;
}
XposedBridge.log("I just got into your lock screen");
resparam.res.setReplacement("com.android.keyguard", "string", "kg_wrong_pattern", "Nice try.!!");
}
}
The module is showing up in the Xposed Installer app and is successful activated, but still the original message is showing up on the lock screen when I draw a wrong pattern.
I am currently testing it on Android 6.0.1 (CyanogenMod 13).
What am I doing wrong?

Errors with fx and Application

import javafx.application.*;
import javafx.scene.*;
import javafx.stage.*;
import javafx.scene.layout.*;
public class LoanCalculator extends Application
{
public void start(Stage myStage)
{
myStage.setTitle("Loan Calculator");
FlowPlane rootNode = new FlowPane();
Scene myScene = new Scene( rootNode, 300, 200 );
myStage.setScene( myScene);
myStage.show();
}
public static void main( String [] args)
{
launch(args);
}
}
This code pops up with multiply errors when I try running it with Eclipse. I apologize if it is an obvious error. I am new to coding, I found this piece of code in my book and I wanted to test it out.
Thanks Guys

Maybe is ir just a typo? In your code it reads: FlowPlane instead of FlowPane.

Java FX is supported by JDK starting from JDK 7 update 6.
Updated my JDK 7 update 5 to JDK 8, executed your code, it worked like a magic.
Also correct the FlowPlane to FlowPane as suggested below by Kornel.