Networking and Web Access in Java
This area will evolve rapidly as existing I/O systems get linked to Java with special classes such as those needed to link MPI (HPCC Message Passing) or Nexus (Well known distributed memory thread package)
One can establish Web Connection with URL class and access documents there
One can set up a more general URLConnection for more general input/output operations through Web(HTTP) protocol
One can set up a Socket link which is permanent rather than on again off again Web client-server interaction
One can send messages and so transfer information between different Applets