Upload or Import Java Applet

Hello,
i want to use a Java Applet for Approval Preview from SRM. I downloaded the applet and i implemented it in my BSP Application but now i want to upload or import it into the SAP System.
What I have to do?
THX

I found a Solution
Re: Display Image In BSP

Similar Messages

Import java code applet into form and execute it

Hi all.
I'm on devsuite 10g.
I have the following applet code:
import java.applet.Applet;
import java.awt.event.*;
import java.awt.*;
public class simple2 extends Applet
implements MouseListener, MouseMotionListener {
      double r0 = 100.0;
      double r1 = 40.0;
    public void paint(Graphics g) {
      int n = 400;
      int x0=0,y0=0,x1,y1;
      for(int i=0;i <=n;i++)
           double rho   = 2*Math.PI*i/n;
           double theta = 16*Math.PI*i/n;
           double x = r0*Math.cos(rho) + r1*Math.cos(theta);
           double y = r0*Math.sin(rho) + r1*Math.sin(theta);
           // cambio sistema di riferimento
           x1 = getSize().width/2+(int)x;
           y1 = getSize().height/2+(int)y;
           // disegno
           if(i>0) g.drawLine(x0,y0,x1,y1);
           x0 = x1;
           y0 = y1;
    public void init() {
      addMouseListener(this);
      addMouseMotionListener(this);
    public void mouseClicked(MouseEvent e) {}
    public void mousePressed(MouseEvent e) {}
    public void mouseReleased(MouseEvent e) {}
    public void mouseEntered(MouseEvent e) {}
    public void mouseExited(MouseEvent e) {}
    public void mouseMoved(MouseEvent e) {}
    public void mouseDragged(MouseEvent e) {
      int x = e.getX(), y = e.getY();
      r0 = x-getSize().width/2;
      r1 = y-getSize().height/2;
      repaint();
      e.consume();
} I want to import this code into my form in order to execute it.
Code make possible drawing graphs to screen...
What I want is to execute this code into my form, in a when-new-block instance trigger or something else.
How can I achieve this???
Thanks all for collaboration,
Fabrizio

It isn't quite as simple as just "importing" your java code if your goal is to have the forms and the java app communicate with each other. Interaction occurs when a properly designed Java Bean is created.
Take a look at some of the examples on the following page as they can likely provide you with a good starting place:
http://sheikyerbouti.developpez.com/forms-pjc-bean/menu/

Problem in Uploading a File by Applet

Hi Members,
* I have faced problem while uploading a file from client to server by ftp protocol using APPLET(No JSP) only
* I am getting exception while running....
* My source code is as follows,
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
public class UploadAndDownload extends Applet implements ActionListener {
     Button upload;
     Button browse;
     TextField filename;
     File source = null;
     Label name;
     StringBuffer sb;
     BufferedInputStream bis = null;
     BufferedOutputStream bos = null;
     public void init() {
          setLayout(new FlowLayout());
          upload = new Button("Upload");
          browse = new Button("Browse");
          name = new Label("Filename");
          filename = new TextField("", 45);
          add(name);
          add(filename);
          add(upload);
          add(browse);
          upload.addActionListener(this);
          browse.addActionListener(this);
     public void actionPerformed(ActionEvent evt) {
          // Code for browsing a file
          String input_file_name = "";
          if (evt.getSource() == browse)
               Frame parent = new Frame();
               FileDialog fd = new FileDialog(parent, "Select a file", FileDialog.LOAD);
               fd.setVisible(true);
               input_file_name = fd.getFile();
               filename.setText(input_file_name);
               // Gets the file from the file dialog and assign it to the source
               source = new File(input_file_name);
               repaint();
          // Code for Uploading a file to the server
          if (evt.getSource() == upload) {
               // Appending the server pathname in string buffer
               sb = new StringBuffer("ftp://");
               sb.append("2847");
               sb.append(':');
               sb.append("Websphere25");
               sb.append("@");
               sb.append("172.16.1.111");
               sb.append('/');
               sb.append(input_file_name);
               sb.append(";type=i");
               try {
                    URL url = new URL(sb.toString());
                    URLConnection urlc = url.openConnection();
                    bos = new BufferedOutputStream(urlc.getOutputStream());
                    bis = new BufferedInputStream(new FileInputStream(source));
                    int i;
                    // Read from the inputstream and write it to the outputstream
                    while ((i = bis.read()) != -1) {
                         bos.write(i);
               } catch (MalformedURLException e) {
                    e.printStackTrace();
               } catch (IOException e) {
                    e.printStackTrace();
               } finally {
                    if (bis != null)
                         try {
                              bis.close();
                         } catch (IOException ioe) {
                              ioe.printStackTrace();
                    if (bos != null)
                         try {
                              bos.close();
                         } catch (IOException ioe) {
                              ioe.printStackTrace();
MY EXCEPTION IS,
Exception in thread "AWT-EventQueue-2" java.security.AccessControlException: access denied (java.net.SocketPermission 172.16.1.111:80 connect,resolve)
     at java.security.AccessControlContext.checkPermission(Unknown Source)
     at java.security.AccessController.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkConnect(Unknown Source)
     at sun.net.www.http.HttpClient.openServer(Unknown Source)
     at sun.net.www.http.HttpClient.<init>(Unknown Source)
     at sun.net.www.http.HttpClient.New(Unknown Source)
     at sun.net.www.http.HttpClient.New(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
     at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.ftp.FtpURLConnection.connect(Unknown Source)
     at sun.net.www.protocol.ftp.FtpURLConnection.getOutputStream(Unknown Source)
     at UploadAndDownload.actionPerformed(UploadAndDownload.java:68)
     at java.awt.Button.processActionEvent(Unknown Source)
     at java.awt.Button.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)* Please let me know what problem in my code....
* Thanks in advance....

* Thanks for your reply....
* I have signed my policy file by giving AllPermission and mentioned in java.security file in bin folder....
* My question is , by giving AllPermission , can we access and do all permissions like ( SecurityPermission, AWTPermission, SocketPermission, NetPermission, FilePermission, SecurityPermission etc )...
* My policy file is looks like follow,
/* AUTOMATICALLY GENERATED ON Tue Apr 16 17:20:59 EDT 2002*/
/* DO NOT EDIT */
grant {
permission java.security.AllPermission;
};* If i signed the policy like above, and when i run the applet file in InternetExplorer now , it thorws the following exception on my console,
java.net.ProtocolException: cannot write to a URLConnection if doOutput=false - call setDoOutput(true)
     at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(Unknown Source)
     at sun.net.www.protocol.ftp.FtpURLConnection.getOutputStream(Unknown Source)
     at UploadAndDownload.actionPerformed(UploadAndDownload.java:68)
     at java.awt.Button.processActionEvent(Unknown Source)
     at java.awt.Button.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)* Please let me know , how to solve this and give me your suggestion on the above process...
* Thanks in advance...
Regards,
JavaImran

Please, help me with file access in Java Applet.

import java.awt.*;
import java.applet.*;
import java.net.*;
public class ImageVi extends Applet {
     URL PicPath1;
     Image Img1;
     public void init()
          try
               PicPath1 = new URL("http://nurchi.far.ru/pic/s08.jpg");
          } catch (MalformedURLException Excep1) {}
     public void paint(Graphics g) {
          Img1=getImage(PicPath1);
          g.drawImage(Img1, 10, 10, this);
The error message is:
Exception occurred during event dispatching:
java.security.AccessControlException: access denied (java.net.SocketPermission nurchi.far.ru resolve)
at java.security.AccessControlContext.checkPermission(AccessControlContext.java:195)
at java.security.AccessController.checkPermission(AccessController.java, Compiled Code)
at java.lang.SecurityManager.checkPermission(SecurityManager.java, Compiled Code)
at java.lang.SecurityManager.checkConnect(SecurityManager.java:1019)
at sun.awt.image.URLImageSource.<init>(URLImageSource.java:48)
at sun.applet.AppletImageRef.reconstitute(AppletImageRef.java:40)
at sun.misc.Ref.get(Ref.java:53)
at sun.applet.AppletViewer.getCachedImage(AppletViewer.java:275)
at sun.applet.AppletViewer.getImage(AppletViewer.java:270)
at java.applet.Applet.getImage(Applet.java:190)
at ImageVi.paint(ImageVi.java:24)
at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:116)
at java.awt.Component.dispatchEventImpl(Component.java:2452)
at java.awt.Container.dispatchEventImpl(Container.java:1059)
at java.awt.Component.dispatchEvent(Component.java:2312)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:301)
at java.awt.EventDispatchThread.pumpOneEventForComponent(EventDispatchThread.java:120)
at java.awt.EventDispatchThread.pumpEventsForComponent(EventDispatchThread.java:95)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:90)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Applets are not allowed to connect to other server
than the one they were loaded from. This is probably
the reason here.You mean that I can use the applet after uploading on my web-site and using "getDocumentBase()" only?
OK.
The applet works perfectly if I use that function, but I have another question.
If I want to use something like:
Img1=getImage(getDocumentBase(), "s01.jpg");
it works perfectly.
If I do the fillowing:
Img1=getImage(getDocumentBase(), "pic/s01.jpg");
it also works.
But is it possible to go a level up?
Like:
Img1=getImage(getDocumentBase(), "../pic/s01.jpg");
That is if an applet is in one folder and the pictures are in another, but to get to them I have to go a level up and then enter another folder.
Please help.
Thanks.

COMMUNICATION BETWEEN JAVASCRIPT AND JAVA APPLET: US$20 AWARD FOR SOLUTION!

COMMUNICATION BETWEEN JAVASCRIPT AND JAVA APPLET PROBLEM (Easy Filter Java Applet) -
US$20 TO ANYONE WHO CAN RESOLVE THE PROBLEM
To forum visitors:
I am prepared to pay a standard shareware fee of US$20 to a user who can resolve this technical problem.
If your advice resolves the problem, I'll forward the payment to your postal address (include your
address with your reply, and also your email address)
I am attempting to enable a HTML button (using Javascript's onClick command) to directly input a number into one of the parameter text boxes in the Easy Filter Java applet (ie, enter a new color value number in the text field of the standard Colors Multiplicator Filter interface).
The applet is Freeware and can be downloaded at: http://www.javazoom.net/applets/easyfilter10/EasyFilter10.html
(It is a very effective bitmap display and editing utility)
To achieve this, I am trying to access the part of the applet that defines and sets the textbox. The text box is defined in the .class file by accessing the parameter details in the genericfilter.txt file (accompanies the .class files). I need to access 'private String appletInitialize()' and then one of the 'textFieldParameters' which sets the textbox.
I understand the basic syntax for referencing the applet:
document.appletname.setString("An example"). However, accessing the text fields in this applet is more complex!!
Please can you recommend the correct Javascript syntax to achieve communication with the applet.
Thank you for your kind assistance.
JM Graham
[email protected]
The Java source code for the applet: EasyFilter.class
# Easy Filter - E.B/JavaZOOM 1999 #
# Contact: [email protected] #
# http://javazoom.hypermart.net #
/* Originally compiled from EasyFilter.java */
import java.awt.*;
import java.io.*;
import java.net.*;
import java.applet.Applet;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.image.MemoryImageSource;
import java.awt.image.PixelGrabber;
import java.util.Vector;
public synchronized class EasyFilter extends Applet implements KeyListener
private String paramFileName;
private Color bgColor;
private Color fgColor;
private Color parColor;
private Color sepColor;
private Color titleColor;
private Color helpColor;
private int WinWidth;
private int WinHeight;
private String title;
private String logoFileName;
private String originalImageFileName;
private String filteredCaption;
private String originalCaption;
private Vector paramsName;
private Vector paramsValue;
private Vector paramsComment;
private Panel panelParameters[];
private Label labelParameters[];
private TextField textFieldParameters[];
private Label labelComments[];
private int nbParameters;
private ScrollPane scrollPaneParams;
private Panel panelParams;
private Image theLogo;
private Image theOriginalImage;
private Image theFilteredImage;
private int theOriginalPixelArray[];
private int logoWidth;
private int logoHeight;
private int imageWidth;
private int imageHeight;
private drawCanvas canvasTitle;
private Panel panelTitle;
private Label labelTitle;
private Panel panelImages;
private Panel panelOriginalImage;
private drawCanvas canvasOriginalImage;
private Label labelOriginalImage;
private Panel panelFilteredImage;
private drawCanvas canvasFilteredImage;
private Label labelFilteredImage;
private Panel panelHelp;
private Label labelHelp;
private int Yspc;
private FilterImplementation theFilter;
public void init()
String string = null;
string = appletInitialize();
setBackground(bgColor);
if (string != null)
removeAll();
setBackground(Color.white);
setForeground(Color.black);
Label label = new Label(new StringBuffer("Error: ").append(string).toString(), 1);
Panel panel = new Panel();
panel.add(label);
add(panel);
setLayout(new FlowLayout(1, 5, Yspc));
public void keyPressed(KeyEvent keyEvent)
panelHelp.removeAll();
boolean flag = true;
if (KeyEvent.getKeyText(keyEvent.getKeyCode()).equals("Enter"))
for (int i = 0; i < nbParameters; )
try
paramsValue.setElementAt(new Double(textFieldParameters.getText()), i);
i++;
catch (NumberFormatException e)
labelHelp.setText(labelParameters[i].getText() + ": Not a Number");
flag = false;
break;
if (flag == 1)
labelHelp.setText(" .... Running, please wait .... ");
labelHelp.setAlignment(1);
panelHelp.add(labelHelp);
panelHelp.doLayout();
theFilter.updateParameters(paramsValue);
theFilter.computeFilter();
theFilteredImage = createImage(new MemoryImageSource(theFilter.getFinalImageWidth(), theFilter.getFinalImageHeight(), theFilter.getFinalImageBuffer(), 0, theFilter.getFinalImageWidth()));
canvasFilteredImage.setImage(theFilteredImage);
canvasFilteredImage.setBounds(0, 0, theFilter.getFinalImageWidth(), theFilter.getFinalImageHeight());
canvasFilteredImage.repaint();
panelHelp.removeAll();
labelHelp.setText("- Done -");
else
labelHelp.setText("- Press Enter to run the Filter -");
labelHelp.setAlignment(1);
panelHelp.add(labelHelp);
panelHelp.doLayout();
public void keyReleased(KeyEvent keyEvent)
public void keyTyped(KeyEvent keyEvent)
private String appletInitialize()
WinWidth = size().width;
WinHeight = size().height;
if (getParameter("bgcolor") == null)
bgColor = new Color(0, 0, 40);
else
bgColor = new Color(Integer.parseInt(getParameter("bgcolor"), 16));
if (getParameter("fgcolor") == null)
fgColor = new Color(255, 255, 255);
else
fgColor = new Color(Integer.parseInt(getParameter("fgcolor"), 16));
if (getParameter("sepcolor") == null)
sepColor = new Color(158, 128, 128);
else
sepColor = new Color(Integer.parseInt(getParameter("sepcolor"), 16));
if (getParameter("parcolor") == null)
parColor = new Color(24, 24, 24);
else
parColor = new Color(Integer.parseInt(getParameter("parcolor"), 16));
if (getParameter("titlecolor") == null)
titleColor = new Color(255, 255, 0);
else
titleColor = new Color(Integer.parseInt(getParameter("titlecolor"), 16));
if (getParameter("helpcolor") == null)
helpColor = new Color(0, 255, 255);
else
helpColor = new Color(Integer.parseInt(getParameter("helpcolor"), 16));
paramsName = new Vector();
paramsValue = new Vector();
paramsComment = new Vector();
paramFileName = getParameter("paramfile");
String string = readParams(paramFileName);
if (string != null)
return string;
MediaTracker mediaTracker = new MediaTracker(this);
theOriginalImage = getImage(getDocumentBase(), originalImageFileName);
mediaTracker.addImage(theOriginalImage, 0);
if (logoFileName != null)
theLogo = getImage(getDocumentBase(), logoFileName);
mediaTracker.addImage(theLogo, 1);
try
mediaTracker.waitForAll();
catch (InterruptedException e1)
return "Error while loading image";
if (mediaTracker.isErrorAny())
return "Error while loading image";
if (logoFileName != null)
logoWidth = theLogo.getWidth(this);
logoHeight = theLogo.getHeight(this);
imageWidth = theOriginalImage.getWidth(this);
imageHeight = theOriginalImage.getHeight(this);
theOriginalPixelArray = new int[imageWidth * imageHeight];
PixelGrabber pixelGrabber = new PixelGrabber(theOriginalImage, 0, 0, imageWidth, imageHeight, theOriginalPixelArray, 0, imageWidth);
try
pixelGrabber.grabPixels();
panelTitle = new Panel();
canvasTitle = new drawCanvas();
labelTitle = new Label();
panelTitle.setLayout(new FlowLayout(1, 10, Yspc));
add(panelTitle);
panelTitle.setBackground(bgColor);
panelTitle.add(canvasTitle);
canvasTitle.setImage(theLogo);
canvasTitle.setBounds(0, 0, logoWidth, logoHeight);
labelTitle.setText(title);
catch (InterruptedException e2)
return "Internal Error, Try RELOAD !";
if (title != null)
panelTitle.add(labelTitle);
labelTitle.setForeground(titleColor);
labelTitle.setFont(new Font("Dialog", 1, 14));
panelImages = new Panel();
panelOriginalImage = new Panel();
canvasOriginalImage = new drawCanvas();
labelOriginalImage = new Label();
panelFilteredImage = new Panel();
canvasFilteredImage = new drawCanvas();
labelFilteredImage = new Label();
panelImages.setLayout(new FlowLayout(1, 10, Yspc));
add(panelImages);
panelImages.setBackground(bgColor);
panelOriginalImage.setLayout(new BorderLayout(0, 2));
panelImages.add(panelOriginalImage);
panelOriginalImage.setBackground(Color.black);
panelOriginalImage.add("Center", canvasOriginalImage);
canvasOriginalImage.setImage(theOriginalImage);
canvasOriginalImage.setBounds(0, 0, imageWidth, imageHeight);
labelOriginalImage.setText(originalCaption);
labelOriginalImage.setAlignment(1);
panelOriginalImage.add("South", labelOriginalImage);
labelOriginalImage.setBackground(Color.lightGray);
labelOriginalImage.setForeground(Color.black);
labelOriginalImage.setFont(new Font("SansSerif", 0, 10));
panelFilteredImage.setLayout(new BorderLayout(0, 2));
panelImages.add(panelFilteredImage);
panelFilteredImage.setBackground(Color.black);
panelFilteredImage.add("Center", canvasFilteredImage);
theFilter = new FilterImplementation(paramsValue, theOriginalPixelArray, imageWidth, imageHeight);
theFilter.computeFilter();
theFilteredImage = createImage(new MemoryImageSource(theFilter.getFinalImageWidth(), theFilter.getFinalImageHeight(), theFilter.getFinalImageBuffer(), 0, theFilter.getFinalImageWidth()));
canvasFilteredImage.setImage(theFilteredImage);
canvasFilteredImage.setBounds(0, 0, theFilter.getFinalImageWidth(), theFilter.getFinalImageHeight());
labelFilteredImage.setText(filteredCaption);
labelFilteredImage.setAlignment(1);
panelFilteredImage.add("South", labelFilteredImage);
labelFilteredImage.setBackground(Color.lightGray);
labelFilteredImage.setFont(new Font("SansSerif", 0, 10));
scrollPaneParams = new ScrollPane(0);
panelParams = new Panel();
nbParameters = paramsName.size();
int i = WinHeight - (33 + 7 * Yspc + logoHeight + imageHeight + 23);
if (i < Yspc + 2 + 24)
i = Yspc + 2 + 24;
scrollPaneParams.setBounds(0, 0, WinWidth - 10, i);
panelParams.setLayout(new GridLayout(nbParameters, 1, 5, Yspc / 2));
scrollPaneParams.add(panelParams);
panelParams.setBackground(sepColor);
panelParameters = new Panel[nbParameters];
labelParameters = new Label[nbParameters];
textFieldParameters = new TextField[nbParameters];
labelComments = new Label[nbParameters];
for (int j = 0; j < nbParameters; j++)
panelParameters[j] = new Panel();
panelParameters[j].setLayout(new FlowLayout(0, 5, 1));
panelParams.add(panelParameters[j]);
panelParameters[j].setBackground(parColor);
labelParameters[j] = new Label();
labelParameters[j].setText((String)paramsName.elementAt(j));
panelParameters[j].add(labelParameters[j]);
labelParameters[j].setForeground(fgColor);
labelParameters[j].setFont(new Font("Dialog", 1, 12));
textFieldParameters[j] = new TextField(8);
textFieldParameters[j].setText(paramsValue.elementAt(j).toString());
panelParameters[j].add(textFieldParameters[j]);
textFieldParameters[j].setBackground(fgColor);
textFieldParameters[j].addKeyListener(this);
labelComments[j] = new Label();
labelComments[j].setText((String)paramsComment.elementAt(j));
panelParameters[j].add(labelComments[j]);
labelComments[j].setForeground(fgColor);
add(scrollPaneParams);
panelHelp = new Panel();
labelHelp = new Label();
panelHelp.setLayout(new FlowLayout(1, 5, 0));
add(panelHelp);
panelHelp.setBackground(bgColor);
labelHelp.setText(" Change colour values and press enter ");
labelHelp.setAlignment(1);
panelHelp.add(labelHelp);
labelHelp.setForeground(helpColor);
return null;
private String readParams(String string1)
Object object1;
String string2;
if (string1 == null)
return "Filename of filter's parameters needed";
try
URL uRL = new URL(getDocumentBase(), string1);
URLConnection uRLConnection = uRL.openConnection();
uRLConnection.setDoInput(true);
uRLConnection.setUseCaches(false);
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(uRLConnection.getInputStream()));
string2 = null;
catch ()
return object1.getMessage();
catch ()
return object1.getMessage();
catch ()
return object1.getMessage();
if (bufferedReader != null)
Object object2;
try
for (object2 = bufferedReader.readLine(); object2 != null && string2 == null; object2 = bufferedReader.readLine())
string2 = extractFormat(object2);
catch ()
string2 = object2.getMessage();
finally
bufferedReader.close();
if (string2 != null)
return string2;
else
return null;
private String extractFormat(String string1)
if (string1.length() == 0)
return null;
int i = 0;
int j = string1.indexOf(" ", i);
if (j == -1)
return "Bad format error (space missing)";
String string2 = string1.substring(i, j);
if (string2.equals("TITLE"))
i = j;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format (Double quote in TITLE missing)";
i = j + 1;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format (Double quote in TITLE missing)";
title = string1.substring(i, j);
return null;
if (string2.equals("ORIGINALCAPTION"))
i = j;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format (Double quote in ORIGINALCAPTION missing)";
i = j + 1;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format (Double quote in ORIGINALCAPTION missing)";
originalCaption = string1.substring(i, j);
return null;
if (string2.equals("FILTEREDCAPTION"))
i = j;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format (Double quote in FILTEREDCAPTION missing)";
i = j + 1;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format (Double quote in FILTEREDCAPTION missing)";
filteredCaption = string1.substring(i, j);
return null;
if (string2.equals("LOGO"))
i = j + 1;
j = string1.length();
logoFileName = string1.substring(i, j);
return null;
if (string2.equals("ORIGINALIMAGE"))
i = j + 1;
j = string1.length();
originalImageFileName = string1.substring(i, j);
return null;
if (!string2.equals("PARAM"))
return null;
i = j;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format in a PARAM line";
i = j + 1;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format in a PARAM line";
paramsName.addElement(string1.substring(i, j));
i = j + 2;
j = string1.indexOf(32, i);
if (j == -1)
return "Bad format in a PARAM line";
try
paramsValue.addElement(new Double(string1.substring(i, j)));
j = string1.indexOf(34, i);
catch (NumberFormatException e)
return "Bad format in a PARAM line";
if (j == -1)
return "Bad format (Double quote in PARAM comment missing)";
i = j + 1;
j = string1.indexOf(34, i);
if (j == -1)
return "Bad format (Double quote in PARAM comment missing)";
paramsComment.addElement(string1.substring(i, j));
return null;
public EasyFilter()
logoHeight = 33;
Yspc = 5;

Addition to my above submission
To clarify, I'll offer the US$20 to the FIRST person who offers me a workable solution to the problem, not to everyone!!!
JMGRAHAM

How to run a Java applet on a website.

Hi,
I am trying to run the code below [DrawLines.java|http://www.dgp.toronto.edu/~mjmcguff/learn/java/01-drawingLines/]
import java.applet.*;
import java.awt.*;
public class DrawingLines extends Applet {
   int width, height;
   public void init() {
      width = getSize().width;
      height = getSize().height;
      setBackground( Color.black );
   public void paint( Graphics g ) {
      g.setColor( Color.green );
      for ( int i = 0; i < 10; ++i ) {
         g.drawLine( width, height, i * width / 10, 0 );
on my website . I compiled it using JDK1.6.0_21 on Windows 7 and generated DrawingLines.class (My site is hosted on a linux server, is this an issue since it was compiled on Windows?)
I created a html file:
<applet width=300 height=300 code="/shanegibney/classes/DrawingLines.class"> </applet>Then I created a new folder called 'classes' in my public directory.
I get the following error:
java.lang.NoClassDefFoundError: /shanegibney/classes/DrawingLines (wrong name: DrawingLines)
     at java.lang.ClassLoader.defineClass1(Native Method)
     at java.lang.ClassLoader.defineClassCond(Unknown Source)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Exception: java.lang.NoClassDefFoundError: /shanegibney/classes/DrawingLines (wrong name: DrawingLines)I'm sure adding a java applet is very common. Does anyone have any ideas why this isn't working? It can be seen here .
Any help would be greatly appreciated,
Thanks,
Shane
Edited by: ofey on Jul 9, 2010 4:21 PM

I believe it's interpreting some of the code attribute as a path. Try this:
<applet width=300 height=300 codebase="/shanegibney/classes/" code="DrawingLines"> </applet>

Problem Running a java applet from an HTML page

I can run my applet at the command prompt with:
appletviewer coffee.html
But when I try and open the Coffee.html by opening
the page in Internet Explorer I get the following message:
Can't find Database driver class: java.lang.ClassNotFoundException: sun.jdbc.odbc.JdbcOdbcDriver
Code: createcoffees.java
import java.applet.*;
import java.sql.*;
public class CreateCoffees extends Applet{
     public void init() {
          Statement stmt;
          Connection con;
          try {Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          } catch(java.lang.ClassNotFoundException e) {
               System.err.print("ClassNotFoundException: ");
               System.err.println(e.getMessage());
          try {con = DriverManager.getConnection("jdbc:odbc:hq","afm", "afm");
               stmt = con.createStatement();
                      stmt.executeQuery("SELECT * FROM RM");
               stmt.close();
               con.close();
          } catch(SQLException ex) {
               System.err.println("SQLException: " + ex.getMessage());
}

Is your jdbc-odbc driver properly loaded? Its very clear that its a class not found exception which is thrown by this:
try {Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
} catch(java.lang.ClassNotFoundException e) {
System.err.print("ClassNotFoundException: ");
System.err.println(e.getMessage());

How to update content of a file on server using a Java Applet?

Hi,
I'm new to Java, and I have a task now to overwrite a text file on a server using an applet. I have written a piece of code which compiles but doesn't work. Can you please take a look at the code or give me another way to do it?
Thanks.
Code:
import java.applet.Applet;
import java.io.*;
import java.net.*;
public class test2 extends Applet{
public void init() {
StringBuffer buf = new StringBuffer();
try {
     String output = "this is some string";
     URL aUrl = new URL (getCodeBase().toString() + "test.txt");
     System.out.println(aUrl);
     URLConnection con = aUrl.openConnection();
     con.setDoOutput(true);
     PrintWriter out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(con.getOutputStream())));
     out.println(output);
     out.close();
catch (MalformedURLException mue) {
     System.out.println("improper url");
     mue.printStackTrace();
catch (IOException e) {
     System.out.println("io exception");
     e.printStackTrace();
}

Ram.ViSolve wrote:
869975 wrote:
Thanks. I knew there would be a security issue, but I do not have sufficient knowledge to get around it. If you have a reference how to configure a server please post it here.You need to create Signed Applet. Because normally applets have some restriction to access the files in the client machine. Signed applets overrides the restriction.
To know more, Read [url http://192.9.162.55/developer/onlineTraining/Programming/JDCBook/signed.html]Signed Applet
No. Our OP wants to write to the server, not to the client! And to achieve this from an applet, you don't need it signed, iff the server is the machine from where the applet was downloaded in the first place. You only need to use a mechanism that allows you to write to servers, which HTTP is not. FTP, on the other hand, if setup properly can do it. So instead of trying to write using an HttpURLConnection (OP's attempt), you would use an FTP client library. FTP here is just an example and probably not the best way. Another option is to use some servlet or PHP or ASP on the server side and the applet will sumbmit the changes to that code on the server, which in turn will write to the file. The idea is that you need some 'partner code' on the server, be it the FTP server or the servlet/PHP/ASP code. None of this requires the applet to be signed.

URGETN HELP NEEDED! JAVA APPLET READING FILE

Hi everyone
I need to hand in this assignment today
Im trying to read from a file and read it onto the screen, my code keeps showing up an error
'missing method body, or declare abstract'
This is coming up for the
public statuc void main(String[] args);
and the
public void init();
Here is my code:
import java.io.*;
import java.awt.*;
import java.applet.*;
public class Empty_3 extends Applet {
TextArea ta = new TextArea();
public static void main(String[] args);
public void init();
setLayout(new BorderLayout());
add(ta, BorderLayout.CENTER);
try {
InputStream in =
getClass().getResourceAsStream("test1.txt");
InputStreamReader isr =
new InputStreamReader(in);
BufferedReader br =
new BufferedReader(isr);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
String line;
while ((line = br.readLine()) != null) {
pw.println(line);
ta.setText(sw.toString());
} catch (IOException io) {
ta.setText("Ooops");
Can anyone help me please?
Is this the best way of doing this? Once i read the file i want to perform a frequency analysis on the words so if there is a better method for this then please let me know!
Thankyou
Matt

Whether it is urgent or not, does not interest us. It might be urgent for you but for nobody else.
Writing all-capitals is considered shouting and rude.
// Use code tags for source.

Help plotting points in a java Applet using Bresens Algorithm

Hi,
I am trying to compile my code and it doesn't like POINT. I am guesing I am using the wrong thing.
Point.point(Math.round(x), Math.round(y)); and I tried just Point.
How do I plot points so that it forms a line. What internal function do I use?
Here is my code.
import java.applet.*;
import java.awt.*;
import java.lang.Math;
import java.awt.Point;
import java.awt.Graphics;
public class DDASimple extends Applet
     int   dx, dy, steps, k, absolutex, absolutey;
     float xinc, yinc, x, y;
   public void init()
public void paint(Graphics g)
DDASMPL(50,50,100,150);
public void DDASMPL(int x1, int y1, int x2, int y2)
repaint();
dx = (x2-x1);
dy = (y2-y1);
//absolutex =
if( Math.abs(dx) > Math.abs(dy))
     steps = Math.abs(dx);
else
     steps = Math.abs(dy);
     xinc = dx / steps;
     yinc = dy / steps;
     x = x1;
     y = y1;
Point.point(x1, y1);
      for (k = 1; k < steps; k++)
          x = x+ xinc;
          y = y + yinc;
Point.point(Math.round(x), Math.round(y));
//g.drawOval(Math.round(x), Math.round(y));
     }//end else
}//end function dda
}//end class ddda applet

I took out the repaint(). and below is the updated version
I am not getting anything now, no line
import java.applet.*;
import java.awt.*;
import java.lang.Math;
import java.awt.Point;
import java.awt.Graphics;
public class DDASimple extends Applet
     int   dx, dy, steps, k, absolutex, absolutey;
     float xinc, yinc, x, y;
   public void init()
public void paint(Graphics g)
DDASMPL(160, 140, 220, 140, g);
public void DDASMPL(int x1, int y1, int x2, int y2, Graphics g)
dx = (x2-x1);
dy = (y2-y1);
//absolutex =
if( Math.abs(dx) > Math.abs(dy))
     steps = Math.abs(dx);
else
     steps = Math.abs(dy);
     xinc = dx / steps;
     yinc = dy / steps;
     x = x1;
     y = y1;
//Point xxx = new Point(x1, y1);
g.fillRect(x1, y1, 1, 1);
      for (k = 1; k < steps; k++)
          x = x+ xinc;
          y = y + yinc;
//Point.point(Math.round(x), Math.round(y));
g.fillRect(Math.round(x), Math.round(y),1 ,1);
     }//end else
}//end function dda
}//end class ddda applet

The window of a java applet is not displayed by Netscape7.1.

I am using Netscape7.1.
A parent window is only what opens a new window.
Please see index.html.
--------index.html--------
<HTML>
<HEAD><TITLE>OYA</TITLE></HEAD>
<BODY>
<FORM>
<CENTER><BR><BR><BR><BR><BR><BR><BR><BR>
<input type="button" onClick="WIN=open('KODOMO.html', 'win_new_comp', ''); WIN.focus();" value="Open the Window">
</FORM>
</CENTER>
</BODY>
</HTML>
There is a button of "CLOSE" with the Java applet called "SimplaApplet.class" in the window opened newly.
Please see KODOMO.html and SimplaApplet.java.
--------KODOMO.html--------
<html>
<title>Using Applet</title>
<body>
<FORM>
<CENTER><BR><BR><BR>

<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"width="100" height="50">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.4">
<PARAM NAME="java_CODE" VALUE="SimpleApplet">
<COMMENT>

<EMBED type="application/x-java-applet;version=1.4"
width="100" height="50"
code="SimpleApplet">
</EMBED>
</COMMENT>
</OBJECT><BR><BR><BR><BR><BR><BR>
<INPUT TYPE="button" VALUE="CLOSE" onClick="window.close()">
</CENTER>
</FORM>
</BODY>
</HTML>
--------SimpleApplet.java--------
import java.awt.*;
import java.applet.*;
public class SimpleApplet extends Applet {
public void paint (Graphics g) {
g.drawString("Simple Applet", 10, 30);
The following operations are performed at this time.
Step1: "Open the Window" is clicked by index.html.
Step2: "CLOSE" is clicked by KODOMO.html.
Step3: "Open the Window" is again clicked by index.html.
Then, in second KODOMO.html, a Java applet and a "CLOSE" button are never displayed.
If the same thing is performed by IE6.0 or Netscape4.75, this bug will not happen.
Please let me know what is bad and whether there is any evasion measure.

It forgot to write.
The version of JavaPlug-IN is 1.4.2_03.
OS is the Windows2000 Japanese version.
Please access confirming this bug at the following HTML.
http://web-p.wics.ne.jp/char_audi/index.html

Need help with Java applet, might need NetBeans URL

I posted the below question. It was never answered, only I was told to post to the NetBeans help forum. Yet I don't see any such forum on this site. Can someone tell me where the NetBeans help forum is located (URL).
Here is my original question:
I have some Java source code from a book that I want to compile. The name of the file is HashTest.java. In order to compile and run this Java program I created a project in the NetBeans IDE named javaapplication16, and I created a class named HashTest. Once the project was created, I cut and pasted the below source code into my java file that was default created for HashTest.java.
Now I can compile and build the project with no errors, but when I try and run it, I get a dialog box that says the following below (Ignore the [...])
[..................Dialog Box......................................]
Hash Test class wasn't found in JavaApplication16 project
Select the main class:
<No main classes found>
[..................Dialog Box......................................]
Does anyone know what the problem is here? Why won't the project run?
// Here is the source code: *****************************************************************************************************
import java.applet.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
import java.util.*;
public class HashTest extends Applet implements ItemListener
// public static void main(String[] args) {
// Hashtable to add tile images
private Hashtable imageTable;
// a Choice of the various tile images
private Choice selections;
// assume tiles will have the same width and height; this represents
// both a tile's width and height
private int imageSize;
// filename description of our images
private final String[] filenames = { "cement.gif", "dirt.gif", "grass.gif",
"pebbles.gif", "stone.gif", "water.gif" };
// initializes the Applet
public void init()
int n = filenames.length;
// create a new Hashtable with n members
imageTable = new Hashtable(n);
// create the Choice
selections = new Choice();
// create a Panel to add our choice at the bottom of the window
Panel p = new Panel();
p.add(selections, BorderLayout.SOUTH);
p.setBackground(Color.RED);
// add the Choice to the applet and register the ItemListener
setLayout(new BorderLayout());
add(p, BorderLayout.SOUTH);
selections.addItemListener(this);
// allocate memory for the images and load 'em in
for(int i = 0; i < n; i++)
Image img = getImage(getCodeBase(), filenames);
while(img.getWidth(this) < 0);
// add the image to the Hashtable and the Choice
imageTable.put(filenames[i], img);
selections.add(filenames[i]);
// set the imageSize field
if(i == 0)
imageSize = img.getWidth(this);
} // init
// tiles the currently selected tile image within the Applet
public void paint(Graphics g)
// cast the sent Graphics context to get a usable Graphics2D object
Graphics2D g2d = (Graphics2D)g;
// save the Applet's width and height
int width = getSize().width;
int height = getSize().height;
// create an AffineTransform to place tile images
AffineTransform at = new AffineTransform();
// get the currently selected tile image
Image currImage = (Image)imageTable.get(selections.getSelectedItem());
// tile the image throughout the Applet
int y = 0;
while(y < height)
int x = 0;
while(x < width)
at.setToTranslation(x, y);
// draw the image
g2d.drawImage(currImage, at, this);
x += imageSize;
y += imageSize;
} // paint
// called when the tile image Choice is changed
public void itemStateChanged(ItemEvent e)
// our drop box has changed-- redraw the scene
repaint();
} // HashTest

BigDaddyLoveHandles wrote:
h1. {color:red}MULTIPOST: [http://forums.sun.com/thread.jspa?threadID=5358840&messageID=10564025]{color}
That wasn't attention-grabbing enough apparantly. Let's try it again.
h1. {color:red}MULTIPOST: [http://forums.sun.com/thread.jspa?threadID=5358840&messageID=10564025]{color}
h1. {color:red}MULTIPOST: [http://forums.sun.com/thread.jspa?threadID=5358840&messageID=10564025]{color}
h1. {color:red}MULTIPOST: [http://forums.sun.com/thread.jspa?threadID=5358840&messageID=10564025]{color}
h1. {color:red}MULTIPOST: [http://forums.sun.com/thread.jspa?threadID=5358840&messageID=10564025]{color}
h1. {color:red}MULTIPOST: [http://forums.sun.com/thread.jspa?threadID=5358840&messageID=10564025]{color}

Problems with jumping ball in Java applet

The ball is supposed to jump to the same height from which it fell down, someway it always gets higher and higher. My question is why?
import java.applet.*;
import java.awt.*;
public class Bug extends Applet implements Runnable
   private int y_pos = 200;
   private int y_speed = 0;
   private int radius = 20;
   private int appletSize_x = 400;
   private int appletSize_y = 400;
   private Image dbImage;
   private Graphics dbg;
   public void run(){
       while(true){
           y_speed++;
           if ((y_pos > appletSize_y)&& (y_speed > 0))
                y_speed = (-1)*(y_speed);
           y_pos += y_speed;
           repaint();
           //controls the time
           try{
               Thread.sleep(20);
          catch (InterruptedException ex){}
    public void update (Graphics g){
        if (dbImage == null)
            dbImage = createImage (this.getSize().width, this.getSize().height);
            dbg = dbImage.getGraphics ();
        dbg.setColor (getBackground ());
        dbg.fillRect (0, 0, this.getSize().width, this.getSize().height);//erase this line to understand better
        dbg.setColor(getForeground());
        paint(dbg);
        g.drawImage (dbImage, 0, 0, this);
    public void stop(){}
    public void destroy(){}
    public void start(){
        Thread th = new Thread(this);
        th.start();
    public void paint(Graphics g){
     g.setColor(Color.green);
     g.fillOval (30 - radius, y_pos - radius, 2 * radius, 2 * radius);
}

Shurik007.5 wrote:
The ball is supposed to jump to the same height from which it fell down, someway it always gets higher and higher. My question is why?
g.fillOval (30 - radius, y_pos - radius, 2 * radius, 2 * radius);There are variables here involved in what gets drawn, no? And do (some of) these variables change during the lifetime? Yes. So, there should be no question about why the display changes.
Edit: I guess your question is more about "why doesn't y_pos keep cycling back and forth between the same two values?" I'd suggest you do some debugging, to make the computer tell you what the values are at each step until you understand what is going on. The simple answer is "It did what you told (programmed) it to do", of course.

Java Applet Panel problems with CardLayout

Hi, I have a problem a I have been stucked for 2 days.
I created 3 Panels to use with CardLayout. I would switch between those 3 panels depending on user interaction. I have some textfields and text areas on the 2nd and 3rd Panel. On the 1st panel, I would like to use g.drawstring to write some stuff on that panel, but the words would be blocked off if it goes to where the components are on the other panels.
Thanks.

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.awt.font.*;
public class CardTest extends Applet
    Panel panel;
    CardLayout cards;
    public void init()
    {   cards = new CardLayout();
        panel = new Panel(cards);
        panel.add("one", new GraphicPanel());
        panel.add("two", getPanel("panel two"));
        panel.add("three", getPanel("panel three"));
        setLayout(new BorderLayout());
        add(getNavPanel(), "North");
        add(panel);
    private Panel getNavPanel()
        final Button
            last = new Button("last"),
            next = new Button("next");
        ActionListener l = new ActionListener()
            public void actionPerformed(ActionEvent e)
                Button button = (Button)e.getSource();
                if(button == last)
                    cards.previous(panel);
                if(button == next)
                    cards.next(panel);
        last.addActionListener(l);
        next.addActionListener(l);
        Panel panel = new Panel();
        panel.add(last);
        panel.add(next);
        return panel;
    private Panel getPanel(String s)
        Panel panel = new Panel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.weighty = 1.0;
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        panel.add(new Button("button"), gbc);
        panel.add(new TextArea(s, 8, 16), gbc);
        return panel;
    public static void main(String[] args)
        Applet applet = new CardTest();
        Frame f = new Frame();
        f.addWindowListener(new WindowAdapter()
            public void windowClosing(WindowEvent e)
                System.exit(0);
        f.add(applet);
        f.setSize(400,400);
        f.setLocation(200,200);
        applet.init();
        f.setVisible(true);
class GraphicPanel extends Panel
    Font font;
    String text;
    final int PAD = 25;
    public GraphicPanel()
        font = new Font("lucida bright regular", Font.PLAIN, 22);
        text = "Hello World";
    public void paint(Graphics g)
        super.paint(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        int w = getWidth();
        int h = getHeight();
        int dia = Math.min(w,h)/6;
        g2.setPaint(Color.blue);
        g2.drawLine(PAD, PAD, w - PAD, PAD);
        g2.drawLine(PAD, h - PAD, w - PAD, h - PAD);
        g2.setPaint(Color.green.darker());
        g2.drawOval(w/2 - dia/2, h*2/3, dia, dia);
        g2.setFont(font);
        FontRenderContext frc = g2.getFontRenderContext();
        float width = (float)font.getStringBounds(text, frc).getWidth();
        LineMetrics lm = font.getLineMetrics(text, frc);
        float x = (w - width)/2;
        float y = (h + lm.getHeight())/2 -lm.getDescent();
        g2.setPaint(Color.black);
        g2.drawString(text, x, y);
}

Basic Java Applet

I am writing my first applet. I have read some tutorials but I cant get it to run in my browser (it runs in the applet viewer though). Please be detailed in your answer because this is my first applet.
This is the process I am following and the code:
Using eclipse I created a project. Then right click on it to create a class (as in java applicatons). But i replaced the code in the class file for:
package pkgs;
import java.awt.*;
import java.applet.*;
public class FirstApplet extends Applet{
public void paint(Graphics g){
g.drawString("Simple applet", 20, 20);
Then I run it as an applet and it worked in the applet viewer.
Then I created a jsp page calling the applet:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>V2</title>
</head>
<body>
<applet code="FirstApplet" width = "260"height = "200"></applet>
</body>
</html>
Then I run it again and "Export" it to .WAR in my tomcat root directory. I am calling the page but it says:
load: class FirstApplet not found.
java.lang.ClassNotFoundException: FirstApplet
The file FirstApplet.class is in the WEB-INF folder, under classes and the package name folder.
I even tried to copy paste the .class file to the same directory as the .jsp file but no luck.
What am I missing.
Thanks in advance for your help.
Edited by: Centinela66 on Sep 20, 2008 4:05 PM
Edited by: Centinela66 on Sep 20, 2008 4:08 PM

JSPs are server side technology and applets are client-side. There's no connection between them; you can use one without the other. The only interaction is that if you find it difficult to create the JSPs properly, then they won't have the proper HTML needed to tell the browser to download and start the applet.
I'd suggest not even bothering with JSP for now. Just create a plain HTML page that embeds the applet. Later on, if you need to, and after you have the HTML working, you can replace the HTML with a JSP page. Use the HTML as a guide to make sure you got the JSP right.
To start off, create a directory -- say, /applet -- that's off the docroot of your web server. This would be OUTSIDE and next to the WEB-INF directory (assuming you're using the same document hierarchy for both web and app servers, or just using an app server). Put the HTML file and the applet .class or .jar file in there.
Use curl (or just your browser if you don't have curl, but I'd strongly urge you to get curl and learn how to use it if you don't have it) to confirm that both the web page and the applet classes/jars are readable by clients. Use curl with the -i and -I headers to see that the server returns a 200 status.
Then you can work on editing the HTML to make it invoke the applet correctly.
Later on, you might want to move the applets and HTML. The ideal setup depends on issues such as, how do you deploy code and content; do you manage your own server; etc.

Upload or Import Java Applet

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