Java - Utilizar variable en clases obtenida atravez de getparameters

public class MorenaStudioBpt extends JApplet

{

String var2; //DECLARO VARIABLE A UTILIZAR

private static class MainPanel extends JPanel

{

    private JTextField status = new JTextField();

    private ImagePanel selected=null;

    private SaveImageAction saveImageAction;

    private UploadImageAction uploadImageAction;

    private MouseListener mouseListener=new MouseListener();

    private boolean hasServer=false;

    private URL documentBase=null;

    private class RemoveAllAction extends AbstractAction implements Runnable

    { RemoveAllAction()

      { super("remove all");

      }

      public synchronized void actionPerformed(ActionEvent event)

      { new Thread(this).start();

      }

      public synchronized void run()

      { removeAll();

        select(null);

        repaint();

      }

    }

    private class AcquireImageAction extends AbstractAction implements Runnable

    {

	AcquireImageAction()

      { super("acquire image");

      }

      public synchronized void actionPerformed(ActionEvent event)

      { new Thread(this).start();

      }

      public synchronized void run()

      { try

        {

	  status.setText("Working ...");

          MorenaSource source=Morena.selectSource(MainPanel.this);

          if (source!=null)

          { source.setColorMode();

            source.setResolution(100);

            while (true)

            { MorenaImage morenaImage=new MorenaImage(source);

              int imageStatus=morenaImage.getStatus();

              if (imageStatus==ImageConsumer.STATICIMAGEDONE)

              { int imageWidth=morenaImage.getWidth();

                int imageHeight=morenaImage.getHeight();

                int imagePixelSize=morenaImage.getPixelSize();

                ImagePanel image=new ImagePanel(Toolkit.getDefaultToolkit().createImage(morenaImage));

                MainPanel.this.add(image);

                select(image);

                int size=(int)Math.round(Math.sqrt(getComponentCount()));

                setLayout(new GridLayout(size, size));

                if (TwainSource.class.isInstance(source))

                {

                  Frame frame=((TwainSource)source).getFrame();

                  status.setText("Done - actual image frame is ["+Math.round(100*frame.left)/100.0+", "+Math.round(100*frame.top)/100.0+"] - ["+Math.round(100*frame.right)/100.0+", "+Math.round(100*frame.bottom)/100.0+"] ...");

                }

                else

                  status.setText("Done - actual image size is "+imageWidth+" x "+imageHeight+" x "+imagePixelSize+" ...");

                validate();

                if (TwainSource.class.isInstance(source) && ((TwainSource)source).hasMoreImages())

                  continue;

              }

              else if (imageStatus==ImageConsumer.IMAGEABORTED)

                status.setText("Aborted, try again ...");

              else if (imageStatus==ImageConsumer.IMAGEERROR)

                status.setText("Failed, try again ...");

              break;

            }

          }

          else

            status.setText("Failed, try again ...");

        }

        catch (NoSuchMethodError error)

        { JOptionPane.showMessageDialog(MainPanel.this, "Previous version of Morena is installed in "+System.getProperty("java.home")+".\nYou have to remove it first.\nClick OK to terminate browser.", "Error", JOptionPane.ERROR_MESSAGE);

          System.exit(0);

        }

        catch (Throwable exception)

        { JOptionPane.showMessageDialog(MainPanel.this, exception.toString(), "Error", JOptionPane.ERROR_MESSAGE);

          exception.printStackTrace();

          status.setText("Failed, try again ...");

        }

        finally

        { try

          { Morena.close();

          }

          catch (Exception exception)

          { exception.printStackTrace();

          }

        }

      }

    }

    private class SaveImageAction extends AbstractAction implements Runnable

    { private class Filter extends FileFilter

      { String type;

      public void actionPerformed(ActionEvent event)

      { new Thread(this).start();

      }

      public synchronized void run()

      { try

        { status.setText("Working ...");

          Image image=selected.getImage();

          BufferedImage bufferedImage=new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_RGB);

          bufferedImage.createGraphics().drawImage(image, 0, 0, null);

          JFileChooser chooser=new JFileChooser();

//        Java 1.6 introduced a comfortable ImageIO.getWriterFileSuffixes() method.

          String e[] = ImageIO.getWriterFormatNames();

          for (int i=0; i<e.length; i++)

            chooser.addChoosableFileFilter(new Filter(e));

          int result=chooser.showSaveDialog(MainPanel.this);

          if (result==JFileChooser.APPROVE_OPTION)

          { String ext=chooser.getFileFilter().getDescription();

            ext=ext.substring(0, ext.indexOf(' ')).toLowerCase();

            File file=chooser.getSelectedFile();

            String name=file.getName();

            if (!name.endsWith(ext))

              file=new File(file.getParentFile(), name+"."+ext);

            ImageIO.write(bufferedImage, ext, file);

          }

        }

        catch (Throwable exception)

        { JOptionPane.showMessageDialog(MainPanel.this, exception.toString(), "Error", JOptionPane.ERROR_MESSAGE);

          exception.printStackTrace();

          status.setText("Failed, try again ...");

        }

      }

      public boolean isEnabled()

      { return selected != null;

      }

    }

    private class UploadImageAction extends AbstractAction implements Runnable

  {

	UploadImageAction()

      { super("upload to server");

      }

      public void actionPerformed(ActionEvent event)

      { new Thread(this).start();

      }

      public synchronized void run()

      { try

        {

	  status.setText("Working ...");

          Image image=selected.getImage();

          ByteArrayOutputStream tmp=new ByteArrayOutputStream();

          BufferedImage bufferedImage=new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_RGB);

          bufferedImage.createGraphics().drawImage(image, 0, 0, null);

          ImageIO.write(bufferedImage, "jpg", tmp);

          tmp.close();

          int contentLength=tmp.size();

          if (contentLength>1024*1024)

            throw new Exception("Image is too big to upload");

          URL uploadURL=new URL(documentBase, "upload.php?c='" + var2 + "'"); //ENVIO VARIABLE PERO SE CAE

          HttpURLConnection connection=(HttpURLConnection)uploadURL.openConnection();

          connection.setRequestMethod("POST");

          connection.setDoOutput(true);

          connection.setUseCaches(false);

          connection.setDefaultUseCaches(false);

          connection.setRequestProperty("content-type", "img/jpeg");

          connection.setRequestProperty("content-length", String.valueOf(contentLength));

          OutputStream out=connection.getOutputStream();

          out.write(tmp.toByteArray());

          out.close();

          InputStream in=connection.getInputStream();

          int c;

          while ((c=in.read())!=-1)

            System.err.write(c);

          in.close();

          URL imageURL=new URL(documentBase, connection.getHeaderField("file-name"));

          status.setText("Done - image is uploaded to "+imageURL+" (for at least 5 minutes) ...");

        }

        catch (Throwable exception)

        { JOptionPane.showMessageDialog(MainPanel.this, exception.toString(), "Error", JOptionPane.ERROR_MESSAGE);

          exception.printStackTrace();

          status.setText("Failed, try again ...");

        }

      }

      public boolean isEnabled()

      { return hasServer && selected != null;

      }

    }

    private class MouseListener extends MouseAdapter

    { public void mouseClicked(MouseEvent event)

      { select((ImagePanel)event.getComponent());

      }

    }

    private class ImagePanel extends JPanel

    { private Image image;

      int imageWidth;

      int imageHeight;

      ImagePanel(Image image)

      { this.image=image;

        imageWidth=image.getWidth(null);

        imageHeight=image.getHeight(null);

        addMouseListener(mouseListener);

      }

      public Image getImage()

      { return image;

      }

      public void paint(Graphics g)

      { super.paint(g);

        int panelWidth=getWidth()-6;

        int panelHeight=getHeight()-6;

        double horizontalRatio=(double)panelWidth/imageWidth;

        double verticalRatio=(double)panelHeight/imageHeight;

        if (horizontalRatio>verticalRatio)

          g.drawImage(image, (int)(panelWidth-imageWidth*verticalRatio)/2+3, 3, (int)(imageWidth*verticalRatio), (int)(imageHeight*verticalRatio), this);

        else

          g.drawImage(image, 3, 3, (int)(imageWidth*horizontalRatio), (int)(imageHeight*horizontalRatio), this);

      }

    }

    void select(ImagePanel image)

    { if(selected != null)

      selected.setBorder(null);

      selected = image;

      if(selected != null)

      {

        selected.setBorder(new LineBorder(Color.blue, 1));

        saveImageAction.setEnabled(true);

        uploadImageAction.setEnabled(hasServer);

      } else

      {

        saveImageAction.setEnabled(false);

        uploadImageAction.setEnabled(false);

      }

    }

    MainPanel(Container container, URL documentBase)

    { this.documentBase=documentBase;

      status.setEditable(false);

      hasServer=documentBase!=null && documentBase.getProtocol().indexOf("http")!=-1;

      container.add(new ToolBar(), BorderLayout.NORTH);

      container.add(this, BorderLayout.CENTER);

      container.add(status, BorderLayout.SOUTH);

      setLayout(new GridLayout(1, 1));

    }

  }

  public void init()

  {

[i]	var2=getParameter("pasada");   //AQUI RECIVO DESDE HTML CON APPLET

	new MainPanel(getContentPane(), getDocumentBase());

  }

  public static void main(String args[])

  { JFrame frame=new JFrame("Morena Studio");

    frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

    new MainPanel(frame.getContentPane(), null);

    frame.setBounds(100, 100, 600, 400);

    frame.setVisible(true);

  }

}