Java communication with applets

Hi, I'm new so I hope this is where I should post this question.
Basically, I want to write a java program that communicates with an applet and retrieves data from the applet. The applet is executed from secure http protocol and connects via the socket port. I know the applet is MainClassApplet.class, but I do not know any of its methods, variables, constructors, etc.
Is it possible to communicate with this applet and retrieve information from it?

The jar file is just a resource on the web server,
like the web page that it's called from. You could
use your browser to grab the jar file. Or use
something like curl.hmm.. do you know of some code or tutorial I could
look at for this?Look at the HTML source of the web page that includes the applet. From that page's URL, and the <applet> or <embed> or <object> tag that refers to the applet, figure out the URL to the jar file. Then type that URL in the location bar of your browser.
Or get "curl", which is a command-line utility that acts like a browser, and use that to get the file. Read the curl help pages.
User name and password doesn't necessarily have
anything to do with HTTPS. Is the site also using
HTTP authentication, or what? How do you know it
wants your user ID and password?Well, why would they make you pay for an account if
people could easily access their webpages? Sometimes a site will password-protect some pages but not others. And anyway, are they asking for a user name and password or aren't they?
I just
know it uses a post method in order to retrieve a
user's account name and password.. I don't think it
uses HTTP authentication.. It has 4 parameters that
it uses to execute the post method.Well, that tells me almost nothing.
Before trying to grab and reverse-engineer some functionality from a site, probably in a manner that violates whatever agreement you agreed to when you signed up for the site, you might want to learn about basic web technologies, like HTML, HTTP, etc. Then learn basic Java.

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Hi Chris,
This isn't going to help much. I took your Java code
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Since that sounds like exactly what you are doing,
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There are only two things that still suggest themselves,
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do share if you have any experience of this sort..
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I want to pass along a couple of tips that will get you more and better response on this list.
1) There is an un-written rule that says more "stars" is better than just one star. Giving a one star rating will probably eliminate that responder from individuals that are willing to anser your question.
2) If someone gives you an answer that meets your needs, reply to that answer and say that it worked.
3) If someone suggests that you look at an example, DO IT! LV comes with a wonderful set of examples that demonstate almost all of the core functionality of LV. Familiarity with all of the LV examples will get you through about 80% of the Certified LabVIEW Developer exam.
4) If you have a question first search the examples for something tha
t may help you. If you can not find an example that is exactly what you want, find one that is close and post a question along the lines of "I want to do something similar to example X, how can I modify it to do Y".
5) Some of the greatest LabVIEW minds offer there services and advice for free on this exchange. If you treat them good, they can get you through almost every challenge that can be encountered in LV.
6) If English is not your native language, post your question in the language you favor. There is probably someone around that can help. "We're big, we're bad, we're international!"
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