1. Modify the multi-client chat room application discussed in this chapter so that it maintains the chat record in a text file. The record should load the text from the file at instantiation and save...

1. Modify the multi-client chat room application discussed in this chapter so that it maintains the chat record in a text file. The record should load the text from the file at instantiation and save each message as it received.

2.  In the multi-client chat room application, a client must send a message to the server to receive a record of the chat. Suggest and implement a way for the client to receive the chat record even if it has nothing significant to say.