I am trying to make an applet, got some java experience but not thát
much. :-(

The applet I have made this far is a 'changed example' from sources the
JTWAIN tool. Presently the applet is loaded into the browser but does
not do anything. I have some idea what the problem is, but how do I get
any information about what is going on, and which call path the
application follows?

In the application, there are several calls to System.out.println, and
System.err.println but their outputs are not seen anywhere. Which I can
imagine since the applet does not have a console window. (For instance,
in the code below, where does the output of
System.out.println("Init."); go then??

Also I have tried to use the Graphic class, but I cannot use it in
functions that have not initialized graphics. And since it is a
abstract class ( what is that anywy, a sort of static, a singleton for
the whole applet?) I cannot instantiate it, I got the message
"java.awt.Graphics is abstract; cannot be instantiated".

In short how can I get some output when running the code below:

Thank in advance, Marc

import java.applet.Applet;
import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.*;

import com.asprise.util.jtwain.Source;
import com.asprise.util.jtwain.SourceManager;

/*
* $Id$
*
*/

/**
* @author     JACK    (Jan 19, 2004)
*/
public class JTwainApplet extends Applet {

    /**
    * @throws java.awt.HeadlessException
    */
    public JTwainApplet() throws HeadlessException {
        super();
        // TODO Auto-generated constructor stub
    }

    public static void main(String[] args) {
    }
    /* (non-Javadoc)
    * @see java.applet.Applet#destroy()
    */
    public void destroy() {
        // TODO Auto-generated method stub
        super.destroy();
    }

    public void scan() {
            try {
                //
SourceManager.setLibraryPath("E:\\Twain\\Asprise\\JT\\Debug\\JT.dll");
                Source source = SourceManager.instance().getDefaultSource();

                if(source == null) {
                    System.err.println("There is no (default) source on the system!");
                    return;
                }

                source.open();

                Image image = source.acquireImage();

                new ImageDisplayer("DemoSimple", image);

                source.close();

            }catch(Exception e) {
                e.printStackTrace();
            }finally{
                SourceManager.closeSourceManager();
            }
    }

    /* (non-Javadoc)
    * @see java.applet.Applet#init()
    */
    public void init() {
        super.init();

        System.out.println("Init.");

        scan();

        System.out.println("Scan");
    }

    /* (non-Javadoc)
    * @see java.applet.Applet#start()
    */
    public void start() {
        // TODO Auto-generated method stub
        super.start();
    }

    /* (non-Javadoc)
    * @see java.applet.Applet#stop()
    */
    public void stop() {
        // TODO Auto-generated method stub
        super.stop();
    }
}