How can I solve these problems of in medical chat app?

[Kaustubh_Rakhade]

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How do you create separate chat rooms?

How do I create separate chat rooms? I am creating a texting app and I want to (but don't know how) to create separate chat rooms. My goal is that when a user types in a chat room name, it either a) creates a new chat room that others can join (if a chat room with that name has not existed before) or b) joining an existing chat room by typing in the name of the chat they want to join. the code I am using is the same as the one in the tutorial below http://appinventor.mit.edu/explore/ai2/clouddb…

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