What protocol it use? Can I use RMI or socket within applet?
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Joined: Mar 22, 2005
Applets can use any communication channel any Java code can use - HTTP, sockets, web services, JMS, email, RMI, ...
Of course, an applet are only allowed to connect to the host where they were served from, so if they need to access some other server then they'll need to be signed, or the local security policy altered. See HowCanAnAppletReadFilesOnTheLocalFileSystem for more details.