A LinkedList walks into a bar frequented by Vectors, and says to the barman “I’ll take a Jack Daniels, on the rocks”, and the bartender says “Sorry, we don’t serve your type here”

Session Bean walks into a bar and asks for a Jack Daniels on the rocks…bartender says “I’m afraid I can’t serve you any alcohol”, and the Session Bean says, “why not ? Are you discriminating against Session Beans ?” and the bartender replies “well, look at the state you’re in”.

Why did the Integer drown?
Cos he couldn’t Float!