This example includes two programs.  "Recv" is a simple server
that receives a series of numbers from the client "Send".
The server must be started in advance:

$ java Recv
Port: 32874

It will output the UDP port number on which it is listening.
You will need this number (and the name of the machine running
the server) when you start the client:

$ java Send belt.thor.cam.ac.uk 32874 1 2 3 4 5

The numbers "1 2 3 4 5" are the ones being sent in this example.
The server should output the data received and then exit.
