how to compile javafx programs in ubuntu without using any IDE? [duplicate] - javafx

Question

This question already has answers here:
Compile code using JavaFX 2.0 (using command line)
(5 answers)
Closed 8 years ago.
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.stage.Stage;
public class HelloWorld extends Application
{
#Override
public void start(Stage primaryStage)
{
Button btn = new Button();
btn.setText("Say 'Hello World'");
btn.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
System.out.println("Hello World!");
}
});
StackPane root = new StackPane();
root.getChildren().add(btn);
Scene scene = new Scene(root, 300, 250);
primaryStage.setTitle("Hello World!");
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args)
{
launch(args);
}
}
I tried compiling this using the command
javac -cp /opt/jdk8/jdk1.8.0_11/jre/lib/ext/jfxrt.jar HelloWorld.java
It gives several errors saying :
javafx.application package doesn't exist
javafx.scene package doesn't exist
I want some help ... I am new to javafx...
and I don't want to use any IDE

Answer 1

You don't need to add jfxrt.jar to classpath when compiling. Just be sure that the javac command is pointing to the /opt/jdk8 installation that you have.
I tried your code example, it ran just fine, opened a small window with a button in it:
~$ javac -version
javac 1.8.0_25
~$ java -version
java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)
~$ javac HelloWorld.java
~$ java HelloWorld
Hello World!