I am trying to create an applet that will replace a confusing CLI with a nice JavaFX GUI. I don't have extensive experience with GUI design and most of what we learned in the classroom environment was Swing/AWT. Having toyed a little bit with JavaFX, I feel that it has already shown to be far better, however there aren't many good tutorials/articles out there about creating JavaFX programs intended to run as applets. Right now I can't even seem to convert the following simple login UI from Swing to JavaFX.
import java.applet.Applet;
import java.awt.*;
import javax.swing.*;
public class ACLEditor extends Applet {
    public void init() {
        /* Basic Layout */
        setLayout(new GridLayout(5, 2));
        /* Components */
        JLabel username_l = new JLabel("Username:");
        JTextField username = new JTextField("", 10);
        JLabel password_l = new JLabel("Password:");
        JPasswordField password = new JPasswordField("", 10);
        JLabel hostname_l = new JLabel("Hostname:");
        JTextField hostname = new JTextField("0.0.0.0", 10);
        JButton connect_btn = new JButton("Connect");
        /* Place all Controls on the Layout */
        add(username_l);
        add(username);
        add(password_l);
        add(password);
        add(hostname_l);
        add(hostname);
        add(connect_btn);
    }
}
Any help on this would be appreciated. Note: I do understand how to create a JavaFX UI for a standalone application, I just can't seem to grasp how to make it into an applet