In this chapter, you learned about client-server communication through different protocols and sockets; you also learned about Java support through the socket API for TCP and UDP programming. Then we discussed different data streams and Java API for supporting read/write content from different streams. We finished this chapter with an overview of URLs--base and relative URLs--and the ContentHandler and ClassLoader concepts.

In the next chapter, you will learn about CORBA and how it contributes to distributed computing and demonstrates the Java space support for such a programming model in detail.