We Keep Coding

javac not finding another compiled class in current folder

I'm using OpenJDK11.
I have two Java files in the current folder, that are supposed to run together to be a JavaFX application.
One of them is called Main.java and runs the main window. Another is Alert.java, and is supposed to run an alternate window which is an alert type.
Now, I ran the following command:
javac -cp "c:\projects\java\currentProject" --module-path "c:\Program Files\Java\javafx-sdk-11.0.1\lib" --add-modules=javafx.controls,javafx.fxml Alert.java Main.java
While Alert.java compiled just fine, Main.java could not import the Alert class and gave an error on "import Alert". I tried "import Alert.Alert" and "import currentProject.Alert" but still, it didn't work.
Also, I declared package "package currentProject" at the start of each file and it still gave an error.
What am I supposed to do to get it running? I already failed on installing JavaFX on all available IDEs, so I'm not going to use an IDE other than Atom. But how do I compile it properly?
more info -
file structure:
c->projects->java->economicManager->( Alert.java ,Main.java, financialManager.fxml, alert.fxml, Alert.class, Alert$Controller.class, Main.class [previously compiled version])
Alert.java:
package financialManager;
import javafx.stage.Stage;
import javafx.stage.Modality;
import javafx.scene.Scene;
import javafx.scene.Parent;
import javafx.scene.control.Button;
import java.util.Map;
public class Alert {
public Stage stage;
private Controler_Class controler;
public Alert(Parent root) {
Controler_Class clas = new Controler_Class(root);
this.controler = clas;
Scene scene = new Scene(root);
Stage stage = new Stage();
stage.initModality(Modality.APPLICATION_MODAL);
stage.setTitle("financial report");
stage.setScene(scene);
this.stage = stage;
stage.showAndWait();
}
private class Controler_Class{
Parent root;
public Controler_Class(Parent root){
}
}
}
Main.java:
package financialManager;
import Alert;
import javafx.application.Application;
import javafx.stage.Stage;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.Parent;
import javafx.scene.control.ListView;
import javafx.scene.control.SplitPane;
import javafx.scene.control.Button;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.VBox;
import java.util.Map;
public class Main extends Application{
#Override
public void start(Stage stage) throws Exception{
final int width = 300;
final int height = 450;
stage.setTitle("hello mofos");
FXMLLoader loader = new FXMLLoader(getClass().getResource("financialManager.fxml"));
Parent root = loader.load();
Scene scene = new Scene(root, width, height);
Map<String, Object> mapper = loader.getNamespace();
AnchorPane pane = (AnchorPane) mapper.get("splitpane1_anchorpane");
if(pane != null)
SplitPane.setResizableWithParent(pane, false);
else
System.out.println("it's null you idiot!");
Button btn = (Button) mapper.get("economicReport");
btn.setOnMouseClicked((event) -> {
FXMLLoader loader2 = new FXMLLoader(getClass().getResource("alert.fxml"));
Parent parent = loader2.load();
Alert alert = new Alert(parent);
});
/*
ChangeListener<Number> stageSizeListener = (observable, oldValue, newValue) ->
pane.setDividerPositions(0.20219435736677116);
stage.widthProperty().addListener(stageSizeListener);
stage.heightProperty().addListener(stageSizeListener);
*/
stage.setScene(scene);
stage.show();
}
public static void main(String[] args){
launch();
}
}

I see that you are importing the Alert class wrongly. Your package is financialManager, so you should use it in the import line like this:
import financialManager.Alert;
About your issues with IDEs, I made JavaFX work fine with Eclipse and IntelliJ on OpenJDK 11 without any issues a few days ago - For OpenJDK you will need OpenJFX, and if you are interesting in some reading, this is the link from Oracle's blog on their plans for JavaFX.
Good luck!

Java JVM crash after webview file upload

I want to implement file drag and upload in java webview, however, it keeps crashing JVM when any type of upload is initiated. Tested on latest JDK 8 and 9 on windows 10. I'm lost as to what can be causing this issue.
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class DropFileUpload extends Application {
public static void main(String[] args) {
Application.launch(args);
}
#Override
public void start(final Stage stage) {
WebView webView = new WebView();
final WebEngine webEngine = webView.getEngine();
//webEngine.load("https://html5demos.com/dnd-upload/");
webEngine.load("http://www.dropzonejs.com");
VBox root = new VBox();
root.getChildren().add(webView);
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
}

why JavaFx Media Player and Media View don'r work on some Labtop and work on a another?

I was trying to play some audio and video files on a laptop usingJavaFX MediaPlayer and MediaView but the media didn't work and also the application didn't give any exceptions, but when i moved the application to another laptop it worked well
Both Laptops are HP and working on MS Widows 8 OS, under JDK 8u102
here's the source code
import java.io.File;
import java.net.MalformedURLException;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.stage.Stage;
/**
*
* #author Anoos
*/
public class Task1 extends Application {
#Override
public void start(Stage primaryStage) throws MalformedURLException {
Button btn = new Button();
btn.setText("Say 'Hello World'");
btn.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
try {
Media media
= new Media(new File("002.mp3").
toURI().toURL().toString());
System.out.println(media.getSource());
MediaPlayer player = new MediaPlayer(media);
player.play();
} catch (Exception e) {
e.printStackTrace();
}
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}}
so, can any one help me please ?
and thank you in advance (:

Open PDF file with associated program in JavaFX

I want my java application such that if user chooses to click on a button the PDF opens using the default PDF reader that is installed in the computer.
The PDF which i want to be opened is present in same package "application".
The code which I am using is
package application;
import java.io.File;
import javafx.application.Application;
import javafx.application.HostServices;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.FileChooser;
import javafx.stage.Stage;
public class Main extends Application {
#Override
public void start(final Stage primaryStage) {
Button btn = new Button();
btn.setText("Load PDF");
btn.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
File pdfFile = new File("computer_graphics_tutorial.pdf");
getHostServices().showDocument(pdfFile.toURI().toString());
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
Scene scene = new Scene(root, 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}

If the PDF file is in the same package as the caller file (as you state), then
getHostServices().showDocument(getClass()
.getResource("computer_graphics_tutorial.pdf").toString());
should solve the problem.
The getResource method can be used really flexibly to locate files. Here is a small description how to use it: JavaFX resource handling: Load HTML files in WebView.

Html source in javafx HTMLEditor

Is there a way to use javaFx HTMLEditor in source mode, like when you select show source code in firefox?
I need this because I want to load strings which include xml tags in the editor and the wigdet is not showing them.

Not HTMLEditor nor Webengine or Webview contains a method like your needs. The only thing I've found is something to display the html in a different textarea. Maybe this will help you.
import javafx.application.Application;
import javafx.event.Event;
import javafx.event.EventType;
import javafx.scene.Scene;
import javafx.scene.control.TextArea;
import javafx.scene.layout.Priority;
import javafx.scene.layout.VBox;
import javafx.scene.web.HTMLEditor;
import javafx.stage.Stage;
public class JavaFXApplication1 extends Application {
#Override
public void start(Stage primaryStage) {
HTMLEditor editor = new HTMLEditor();
editor.setHtmlText("<html>"
+ "<head>"
+ "<title>A Test</title>"
+ "</head>"
+ "<body>This is just a Test</body>"
+ "</html>");
TextArea area = new TextArea();
area.setText(editor.getHtmlText());
editor.addEventHandler(EventType.ROOT, (Event event) -> {
area.setText(editor.getHtmlText());
});
VBox root = new VBox();
VBox.setVgrow(area, Priority.ALWAYS);
root.getChildren().addAll(editor, area);
Scene scene = new Scene(root, 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
}
/**
* #param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}