Question: Chat Rooms. You have been pretty disappointed at the current quality of chat room applications and vow to create your own, start-up a new Internet company, obtain venture capital funding, integrate advertisement into your chat program, quintuple revenues in a six-month period, go public, and retire. However, none of this will happen if you do not have a pretty cool chat application. There are three classes you would need: a Message class containing a message string and any additional information such as broadcast or single recipient, a User class that contains all the information for a person entering your chat rooms. To really wow the VCs to get your start-up capital, you add a class Room that represents a more sophisticated chat system where users can create separate "rooms" within the chat area and invite others to join. EXTRA CREDIT: Develop graphical user interface (GUI) applications for the users.