why does the comented line give me an error even though the class of l3 is tube why is it saying that it cannot find the test method in light . i thought it would use the one in tube [ Jess Added UBB [CODE] tags to preserve whitespace, improve readibility ] [ June 06, 2002: Message edited by: Jessica Sant ]
Because l3 is a reference to a superclass Light which doesn't have a test method. To call test() like this it has to be overridden. Since it is not overridden and you want to call the method in the subclass a cast is definitly needed. Hope this helps.
why does the comented line give me an error even though the class of l3 is tube why is it saying that it cannot find the test method in light . i thought it would use the one in tube [ Jess Added UBB to avoid compiler errors
thank you but i thought that when a method is invoked on an object using a reference , it is the class of the current object denoted by the reference not the type of the reference that determines which method implementation will be executed ? so i thought the method test in tube should be called becase l3 is of class Tube
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