BCastWin.zip This zip archive contains source code that demonstrates the
use of interfaces in Java.  Although Java is easier to learn than C++, it lacks some
of the features of C++ such as multiple inheritence and passing of function pointers. 
Instead, Java allows the user to implement interfaces and pass references to
implementations (allowing access to interface methods).  This file contains two
programs: BCast.java and TestBroadcast.java.  TestBroadcast.java was contributed by
Jack Harich and extracts/simplifies the concept of broadcasting messages to a
heterogeneous collection of objects. jlouie