3.5. Barebones MathService client.

In this section, we'll quickly show you how to write a client to test out your newborn stateful Web Service. The client will have minimal error-checking, but should work fine just connecting on your local host. One important thing to check before you start is the firewall setup on your computer and make sure that the firewall allows connections to/from your localhost (127.0.0.1). You do not need to open any holes in your external connectivity firewall for this client to work.