Prints out the received message from the Link on System.out
REQUIRES:
MODIFIES: System.out
EFFECTS: Prints out the message and message-related information
Creates and sends out a new messages (error checks on
the availability of driver to accept outgoing message
REQUIRES:
MODIFIES: System.out, this
EFFECTS: Passes the message to the carrier performing
carrier related error checking.
Class UserAccount defines the functionality of the generic user account
by setting username, password or quota (if necessary constructor is used)
Class UserAccount is supposed to be used only within Server