We conclude this tutorial with with more on the BuildMsg.processRequest() and BuildMsg.getMsg() methods, and generating an EBCDIC byte stream using "cp500" encoding.

A lot of new applications are being written today in Java. Companies also have a vested interest in maintaining their legacy systems. So there is a need for Java applications to communicate with legacy systems through messages that those systems can interpret properly.

Here's how to write a charting application in Java that compares the historical stock performance of companies.

Java is well suited for programs that harvest information from the Web the URL class hides much of the complexity associated with networking.