CS202 Java-91
Dynamic
Binding
lJava, like C++, has some rules to get dynamic binding to work for us
•The
methods must be defined in the base class (to which we use a reference to) and they must be anything BUT private (public, protected, or “friendly” are all ok)
•We must
invoke the function thru a reference to the base class, but have it refer to an object of the proper
class to which we are
interested
•The
argument lists, function names, and return types must be identical
•The only
difference is we don’t need the “virtual” keyword (that was C++)