Using plain Java Sockets(not RMI) how..?

hi!
1. Using plain Java Sockets(not RMI) how can the client detect when its server
goes down?
There is a long time interval between client requests and the client wants
to retain a live connection rather than disconnect after every reqest.
Please also cc your reply to [email protected]
Thanks,
\Raghu

If you try to send data when the host is gone, it throws an exception. I don'thow to check if it is alive though. I'm having the same problem right now.

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Java socket not handling the data packets properly

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Hello,
I�m going to develop a peer-to-peer application that has the following functionality:
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Tirador wrote:
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Hello, Wyseup.
Thank you for visiting Apple Support Communities.
Most likely this email address has been attempted to be setup as an Apple ID at some point. You can reset your Apple ID password via the steps in the first article below. If you do not have access to the email account, need assistance or are not receiving the password reset link, see the second article.
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My Problems are :
1. i want to ask about this, can Java reflect from .java file?
2. i'm using Eclipse IDE, i'm really interesting about how JTree or Package Explorer in Eclipse can always displaying update information about class structure? but .java files not compiled, how can? if Eclipse using reflection, .java files must be compiled first, correct me if i'm wrong?
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what i mean like this :
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Hi All,
I am facing the same problem.
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([email protected])

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OS: Ubuntu 9.0.4
Browser: Firefox 3.6.10
upon updating to firefox 3.6.10, java does not work at all.
websites that use java do not work at all anymore, when they worked just fine before the updating thru update manager. e.g. hulu website cannot play any of the shows.
i can give the folder of bookmarked pages i tried.
how to do that on here, i've yet to see if possible.
i can even give saved text from the terminal concerning certain attempts.
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i uninstalled this as instructed by an answer found in one of the pages i saved, cuz it was conflicting w/another java program the updater said i needed. right now, i don't remember for sure what it was. it perhaps was realplayer flash or Java itself. w/all the hours/days of searching i put in, it's difficult if not downright impossible for me to remember all the specifics of what i tried.
i've searched throughout many webpages (including many searches on mozilla, ubuntu, java, etc) for instruction in fixing the problem.
oh, and incidentally, on the Java site, when i try the verify test of Java, firefox pops up with that yellow bar right below the slew of tabbed website windows, giving the statement "additional plugins are required to display all the media on this page. (w/link to) install missing plugins ." which is what i do, go thru the requesting plugin installation. it comes up with, guess what, the IcedTea Java Plugin. i click on the 'next' in the "Plugin Finder Service" box that pops up, & all it gives me is "No plugins were installed. IcedTea ...Plugin failed. and the link 'find out more about plugins or manually find missing plugins'". the link takes me to some of the very things/plugins that wouldn't install in the first place. the Java test failure is a LOL funny, as what plugin it is saying is required (IcedTea) is a recommended alternate program to display the very test in the first place.
i followed the given instructions on those many searched pages, in every case (barring what i may have just plain missed), but to no avail.
i've even gone to the point of trying to reinstall the previous 3.5.13 firefox version, from mozilla site. even that wouldn't install.
i've tried installing Java for my sys direct from it's site. nada.
now it's time for me to post the problem & perhaps someone will come up with some kind of "dummy" way to fix it.
until then many sites a regularly use are totally useless to me on this fast puter.
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thanks muchly :^D
p.s. i can't pay anybody any money for such help, as is required in certain sites (e.g. Java website), cuz i don't have any.
i can pay in labor tho, if there is someway to find someone who can physically be at this puter w/me, taking me step-by-step
sorry for the 20-pg essay. i hope it was all clearly understood. if, not, well, clear communication is always what is needed, ask away.

Your above posted system details show outdated plugin(s) with known security and stability risks.
*Shockwave Flash 9.0 r999
Update the [[Managing the Flash plugin|Flash]] plugin to the latest version.
*http://www.adobe.com/software/flash/about/
In Firefox 3.6 and later versions you need the Next-Generation Java™ Plug-In present in Java 6 U10 and later (Linux: libnpjp2.so; Windows: npjp2.dll).
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I am new to java sockets, and need to come up with a way to send a user defined instance of a class across a basic client/server application.
I can not find out how to do this. I read the tutorials, but my class can not be serialized. How can I send/recieve this instance of a user defined class?

right off the top of my head, doesn't serialver just spit out a UID for a given set of classes?
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Good luck
Lee

Using plain Java Sockets(not RMI) how..?

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