Debug an Applet ? How ?

I probably cant see the wood for the trees, but no mater how hard I try, I cannot debug an applet class. Whenever I right-click and run I get
init:
deps-jar:
compile-single:
run-applet:
Warning: <param name=... value=...> tag requires name attribute.
Warning: <param name=... value=...> tag requires name attribute.
Warning: <param name=... value=...> tag requires name attribute.
Warning: <param name=... value=...> tag requires name attribute.
BUILD SUCCESSFUL (total time: 0 seconds)
I have followed the help guide and have the html file in the src directory. I can run the html file ok in a normal browser. but for the life of me I cannot see where or how to either attach the debugger to the applet process, or even run it and hit a breakpoint.
I canot run it like a normal application as there is no "Main Class" and trying to set that up is a nightmare in itself. I have only just started using the IDE and although it has similarities with .NET (hope thats not a bad word here) it does seem to be a lot more complex when youre trying to recall everything you forgot from years ago.
Can anyone explain is an easy straight foward basic language what I need to do ? I find the help files assume that one already has a vast amount of background. The learning curve for me is very steep at the moment.
Thanks for your time and help.
Kess

Quote:
Copy the MyApplet.html launcher file from the build folder to the package where the applet class lives in the src folder (in this case, to org.me.hello). Make sure that the MyApplet.html launcher file has the same name as the applet class.
Note that later it says....
Note that applets run in the virtual machine of the IDE's default web browser. The IDE uses a different virtual machine and therefore applets are not included in a web application's debug session. Debug the applet within the Java project, as explained above.
So, if you create the htm file and add in some parameters, it becomes a web application and the caveat is that no breakpoints can be set and you cant step into the code.
Which is the problem I am having.
Of course none of the examples or help pages only ever give the most simplest of the "Hello Word" examples, and it would appear that doing something a little more complex is beyond the help articles.......
I am still stuck, and would much prefer someone to state excatly how to debug an applet.....
I cant believe this beyond some of the experts here.
Thanks for your comments so far.

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Hi,
I am relatively new to Java. At work, I have a client-server style application where applets are deployed to the clients in an html page.
Background:*
The sequence is something like this:
- Client goes to the relevant url
- The returned html page has an embedded login applet
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On the server there is an application running that listens to the relevant socket (that the client sends data to) and sends out appropriate responses and data.
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How do i setup this system in any IDE (any IDE is ok with me) so that i can do the following:
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schinni

Hi,
I am actually, working in an applet too, and I also need to debug it. With Eclipse you will easily get it, just click with Right button on the project�s name and choose: Debug As-> Java Applet. You can arrive also by: Debug As-> Open Debug Dialog. At the end you will have a window where you will be able to add the applet parameters in the Parameters tab. Finally you only have to set breakpoint (double click in the left side of any code line) and with F5, F6 and F7 you will get the absolute control. I don't think you've problems even you run multiple applets.
Hope it helps you (sorry for my poor English).

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For the newbies, like me:
Instruction to setup and debug an applet in Eclipse IDE via your Browser
Java Console Setup for Applet debugging:
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6. Note: if you don�t need to debug code in the Applet�s init() method, then use....suspend=n (Not tested yet.)
Eclipse setup for Applet debugging:
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2. Select the top level Run menu
3. Pick the Open Debug Dialog� option
4. In the left column select Remote Java Application
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7. Set connection type to Standard (Socket Attached)
8. Host to localhost
9. Port to 5555, or whatever you used in Java Console Setup step 5.
10. Due not check the �Allow termination of remote VM�
11. Due not close this window.
Start debugging:
1. Go to your Applet html launch file and launch in a browser
2. Then go back to eclipse and select the debug button
3. Eclipse should now throw you into the debugger mode.
4. If it hangs, just retry again. It seems to work ok most of the time. A few time I need to close the browser and start over and then it seems to work.

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Thanks for your reply, i see I made a mistake in my post
Allso I cannot debug an applet that uses JSObject, this is because the applet cannot be
run with the appletviewer. None of the html elements are visible in the appletviewer.
should be
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Class "SubAppletClass" does not have a main method.

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shamuntoha wrote:
UDPDatagramConnection is available under MIDP/Midlet. But after migration to j2se, it shows microedition does not exist. What is that mean?.. None of the J2ME (or JME - I forget what they're calling it this instant) classes are available in J2SE ((J)Applets, (J)Frames etc.).
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..i want to switch the same code, concept, in to j2se.
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bulgin wrote:
I've looked over many of your other posts, a snippet of the over 18,000 you have posted over 10 years -- wow, that's quite a record of trying to prove oneself.Congratulations. Next, try the "living in your parent's basement" line.
So you told me to "Just stick those lines in after the exec." to be cynical and prove to me how little I know?I told you that because it answered the question.
To set a trap that you could then refer back to in your apish chest-pounding display of machismo?No, and quite frankly that interpretation of the events is paranoid.
What level of assistance did you expect? That I'd read your mind regarding what problems you were having understanding the issue and the goals of the project, review all your code to see if it matched, correct it all, and provide the completed work to you?
If you feel that my knowledge of Java which I admit is meager, is not up to snuff for the "New to Java" forum, then perhaps you can suggest to the forum administrators that they open another another one. I'm sure you will have no problem contributing."New to Java" doesn't mean "bears no responsibility to express the nature of the problem fully" or "all work will be performed for the newbie".
As for me, I'm going to click on the abuse link at the top and report you. The nature of the abuse being, I gave you some advice, you followed it, another problem turned up, you complained because you expect everything to work perfectly the first time and so you felt the advice was somehow backhanded, and when I gave you more advice, you felt that it was disparaging.
You've certainly made my initial inquiry into java a great learning experience! If you learned that you don't get to be spoonfed, and that coding involves repeated corrections, and that not everyone is your parent, then that would be great. Sadly, I suspect you may have failed to learn that lesson.
Thanks!You're welcome, Captain Sarcasm.

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