Your question was truncated! Keep the subject line short, and put the question in the body of the message. You need to be more specific. When you say "Unicast and Multicast objects" which package are you referring to? And what are you trying to achieve? Also, it is better if you tell us what you think the answer is. We can then discuss, and confirm or correct your thoughts. That way, it shows that you have thought about it and made some effort to find out the answer for yourself. The people on Java Ranch are a helpful bunch, but they don't like doing other people's homework for them!
This will take every ounce of my mental strength! All for a tiny ad: