Swing components without using applets

hi there
can i display swing components on the browser without using applets through jsp.
if the answer is yes.please help me by sending a sample code.thanking u.
-radhakrishna

A JSP is compiled into a (server-side, obviously) servlet, which responds to Http requests by constructing a String of HTML/JavaScript etc to send back to the browser which then displays it.
A Swing component is a piece of Java. The only way for such a component to run on the client side is to use either Applets or the new Java WebStart technology (see the JDC), which allows you to run a Java App locally from a Web Browser.
You cannot possible use JSP to view Swing Components, without also using either of the above.

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hello friends;
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Thanks in advance.
Amit

IE does not support swing if you do not have the java-plugin installed. Either install that, then IE can display Swing components - or use AWT which can be displayed by IE.
cheers,
kelysar

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With Regards,
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This is one that I've used before, it's pretty good:
http://www.jenkov.dk/treetag/introduction.tmpl

I can't use swing components in my applets

When I write an applet without any swing components, my browser never has any trouble finding the classes it needs, whether they're classes I've written or classes that came with Java. However, when I try to use swing components it cannot find them, because it is looking in the wrong place:
On my computer I have a directory called C:\Java, into which I installed my Java Development Kit (so Sun's classes are stored in the default location within that directory, wherever that is), and I store my classes in C:\Java\Files\[path depends on package]. My browser gives an error message along the lines of "Cannot find class JFrame at C:\Java\Files\javax\swing\JFrame.class"; it shouldn't be looking for this non-existent directory, it should find the swing components where it finds, for example, the Applet class and the Graphics class.
Is there any way I can set the classpath on my browser? Are the swing components stored separately from other classes (I'm using the J2SE v1.3)?
Thanks in advance.

Without having complete information, it appears that you are running your applets using the browser's VM. Further, I assume you are using either IE or Netscape Navigator pre-v6. In that case, your browser only supports Java 1.1, and Swing was implemented in Java 1.2. You need to use the Java plug-in in order to use the Swing classes (see the Plug-in forum for more information), or else download the Swing classes from Sun and include them in your CLASSPATH.
HTH,
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My goal is to be able to create an Image/BufferedImage that represents the image of Swing components. Now one solution would be to display the component, take a printscrn of it, and cut the resulting image down so that it only contains the area that the component takes up. However, this requires the component to be displayed to the screen.
Looking for a solution, I found createImage() in java.awt.Component. I tried that, and got a null image. Going back to the javadocs, I found that the component had to be displayable, which was defined as being visible or packed. I tried inserting the component into a JFrame, packed the frame, and then called createImage, only to get a blank Image. I've also tried displaying the JFrame, calling createImage, and displaying the image, but I've had no luck.
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How would I go about doing that? I'm looking through
the API, but I can't find anything relevant.If you direcytly want to create Image object .. then check.. this... and see my last posting of Brio.java
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=711032
Note: use setVisible(true);
before creating buffer = createImage(...) else U will get null Image..
U can also make a BufferedImage like..
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Graphics g = buffer.getGraphics();
g.setColor(new Color(255, 0, 255));
g.drawImage(img, x, y, null);
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g.dispose();

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I am facing one problem that is related to reloading of swing components. I Have a JPanel inside JApplet which contains some swing components and a button to launch the same JPanel again in the JApplet. When I click on the button the JPanel should get added in the JApplet once again below the upper JPanel. But new JPanel is not getting displayed although the reference of the new JPanel is created.

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Please Help me !
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What changes should be made??
import javax.swing.*;
import java.net.*;
import javax.sound.sampled.*;
import java.applet.AudioClip.*;
public static void main(String args[]) {
AudioClip sound;
sound=JApplet.newAudioClip(new URL("file://C:\\jdk1.3\\bin\\Butfl_g.wav"));
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Also, the file protocol has 3. not 2 slashes."file://C:\\jdk1.3\\bin\\Butfl_g.wav"should be"file:///C:\\jdk1.3\\bin\\Butfl_g.wav"db

Playing sound file without using Applet

Please Help me !
The code below shows an error " Cannot resolve symbol AudioClip"
What changes should be made??
import javax.swing.*;
import java.net.*;
import javax.sound.sampled.*;
import java.applet.AudioClip.*;
public static void main(String args[]) {
AudioClip sound;
sound=JApplet.newAudioClip(new URL("file://C:\\jdk1.3\\bin\\Butfl_g.wav"));
sound.play();
}

Sorry!Apology accepted.
I was in need of finding error as quickly as possible.
Thats why I tried to post it in here.No excuse for cross posting.
Please don't do it again.
db

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Rakesh,
A couple of observations:
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<%!
public string jspcall()
return new String("just a example");
%>
<script language="javascript">
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temp = jspcall();
//->
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it's desn't work.
any suggestion will help!

it's was not able to call a jsp function in javascript.
jsp function was on server site while javascript normally on the client site.

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Im using swing components, so using paint() to draw a "drag icon" doesnt seem acceptable. Im basically trying to move a JPanel image to be dragged/dropped over another JPanel in the same program/applet.
I looked at Sun's Java Tutorial for information on doing drag and drop, but there was no trail completed yet.
Does anyone know of any good resources to learn? Or can at least give me a general idea of how to do drag and drop?

Did you see this?
http://java.sun.com/docs/books/tutorial/dnd/index.html
http://java.sun.com/docs/books/tutorial/reallybigindex.html

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complicated and also include current <--> voltage conversion (simulating a resistance) but in your simulation it is simply a "gain" (multiplication).
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Swing - components

is there any method called "setToolTipText(string)" in swing.
if so in which class
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Myrequirement is to capture all AWT events, regardless of on which component its being happened.
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This is part of my app. other end extensively uses awt.

Swing components in applet not working in web browser

Hi Guys,
I've created an applet which makes use of some swing components, but unfortunately, not all of them function properly in my web browser (internet explorer or Mozilla Firefox). Its mainly the buttons; the last buttons works and displays the correct file within the broswer, but the first 5 buttons do not work...
any help please on how I can sort this problem out?
Heres the code for my applet:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.applet.*;
public class MainAppWindow extends JApplet
int gapBetweenButtons = 5;
final JPanel displayPanel = new JPanel(new BorderLayout());
public void init()
   //Panel for overall display in applet window.
   JPanel mainPanel = new JPanel(new BorderLayout());
   mainPanel.add(new JLabel(new ImageIcon(getClass().getResource("images/smalllogo2.gif"))),BorderLayout.NORTH);
   //sub mainPanel which holds all mainPanels together.
   JPanel holdingPanel = new JPanel(new BorderLayout());
   //Panel for displaying all slide show and applications in.
   displayPanel.setBackground(Color.white);
   displayPanel.add(new JLabel(new ImageIcon(getClass().getResource("images/IntroPage.jpg"))),BorderLayout.CENTER);
   displayPanel.setPreferredSize(new Dimension(590,400));
   JPanel buttonPanel = new JPanel(new GridLayout(6,1,0,gapBetweenButtons));
   buttonPanel.setBackground(Color.white);
   JButton button1 = new JButton("User guide");
   button1.addActionListener(
     new ActionListener() {
          public void actionPerformed(ActionEvent e)
               if(displayPanel.getComponents().length > 0)displayPanel.removeAll(); // If there are any components in the mainPanel, remove them and then add label
               displayPanel.setBackground(Color.white);
               displayPanel.add(new JLabel(new ImageIcon("images/UserGuide.jpg")));
               displayPanel.revalidate(); // Validates displayPanel to allow changes to occur onto it, allowing to add different number images/applicaions to it.
   JButton button2 = new JButton("What is a Stack?");
   button2.addActionListener(
   new ActionListener() {
           public void actionPerformed(ActionEvent e)
               if(displayPanel.getComponents().length > 0)displayPanel.removeAll();
               displayPanel.setBackground(Color.white);
               displayPanel.add(new JLabel(new ImageIcon("images/WhatIsAStack.jpg")));
               displayPanel.revalidate();
   JButton button3 = new JButton("STACK(ADT)");
   button3.addActionListener(
   new ActionListener() {
         public void actionPerformed(ActionEvent e)
               if(displayPanel.getComponents().length > 0)displayPanel.removeAll();
               displayPanel.setBackground(Color.white);
               displayPanel.add(new JLabel(new ImageIcon("images/StackADT.jpg")));
               displayPanel.revalidate();
   JButton button4 = new JButton("Stacks in the Real World");
   button4.addActionListener(
   new ActionListener() {
         public void actionPerformed(ActionEvent e)
               if(displayPanel.getComponents().length > 0)displayPanel.removeAll();
               displayPanel.setBackground(Color.white);
               displayPanel.add(new JLabel(new ImageIcon("images/StacksInTheRealWorld.jpg")));
               displayPanel.revalidate();
   JButton button5 = new JButton("DEMONSTRATION");
   button5.addActionListener(
   new ActionListener() {
         public void actionPerformed(ActionEvent e)
             if(displayPanel.getComponents().length > 0)displayPanel.removeAll();
             Demonstration app = new Demonstration();
             JPanel appPanel = app.createComponents();//gets the created components from Demonstration application.
             appPanel.setBackground(Color.pink);
           displayPanel.add(appPanel);
           displayPanel.revalidate();
   JButton button6 = new JButton("Towers Of Hanoi");
   button6.addActionListener(
   new ActionListener() {
         public void actionPerformed(ActionEvent e)
                 if(displayPanel.getComponents().length > 0)displayPanel.removeAll();
                 TowerOfHanoi app = new TowerOfHanoi();
                 JPanel appPanel = app.createComponents();//gets the created components from Towers of Hanoi
                 JPanel mainPanel = new JPanel();//panel used to centralise the application in center
                 mainPanel.add(appPanel);
                 mainPanel.setBackground(Color.pink); //sets mainPanel's background color for 'Towers Of Hanoi'
                 displayPanel.add(mainPanel);
                 displayPanel.revalidate();
   //adding buttons to the buttonPanel.
   buttonPanel.add(button1);
   buttonPanel.add(button2);
   buttonPanel.add(button3);
   buttonPanel.add(button4);
   buttonPanel.add(button5);
   buttonPanel.add(button6);
   JPanel p = new JPanel(); // Used so that the buttons maintain their default shape
   p.setBackground(Color.white);
   p.add(buttonPanel);
   holdingPanel.add(p,BorderLayout.WEST);
   holdingPanel.add(displayPanel,BorderLayout.CENTER);
   //Positioning of holdingPanel in mainPanel.
   mainPanel.add(holdingPanel,BorderLayout.CENTER);
   //indent mainPanel so that its not touching the applet window frame.
   mainPanel.setBorder(BorderFactory.createEmptyBorder(10,20,10,20));
   mainPanel.setBackground(Color.white);
   mainPanel.setPreferredSize(new Dimension(850,600)); //size of applet window
   mainPanel.setOpaque(false); // Needed for Applet
   this.setContentPane(mainPanel);
}

Thanks for the response. I don't quite understand what you're talking about though. I have, in my humble knowledge, done nothing with packages. I have put the applet class (WiaRekenToolActiz.class is the applet class) in the jar file wia_actiz_archive.jar. From what I read on the tutorial, java looks for the applet class in all the jar files specified. Since I put my CODEBASE as the main url, I thought it baiscally didn't matter where you out the html file.
I shall include the complete html page complete with applet tag to perhaps illuminate a bit more what I mean...
<html>
<head>
<title>Wia Rekenmodule hello!</title>
</head>
<body bgcolor="#C0C0C0">
<applet
CODEBASE= "http://www.creativemathsolutions.nl/test"
ARCHIVE= "Actiz/wia_actiz_archive.jar, Generic/wia_archive.jar"
CODE="WiaRekenToolActiz.class"
WIDTH=915 HEIGHT=555
>
<PARAM NAME = naam VALUE = "Piet Janssen">
<PARAM NAME = gebdag VALUE = "01">
<PARAM NAME = gebmaand VALUE = "06">
<PARAM NAME = gebjaar VALUE = "1970">
<PARAM NAME = geslacht VALUE = "man">
<PARAM NAME = dienstjaren VALUE = "10">
<PARAM NAME = salaris VALUE = "56500">
<PARAM NAME = deeltijdpercentage VALUE = "100">
<PARAM NAME = accountnaam VALUE = "Zorginstelling 'De Zonnebloem'">
</applet>
</body>
</html>

Swing components without using applets

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