Network Design Homework 2 - Socket Programming

The goal of this homework is to practice socket programming.

Perform the following:

• Using either C++, C or Java create a pair of client server programs.
• The server is a "Math Server" where it starts listening at a particular port and accept math formulas from mulitiple clients.
• The server needs to be multi-threaded to handle more than one client at the same time.
• The formulas supported are additional, subtruction, multiplication and division.
• The "(" and ")" should also be supported.
• The client will send out math problem (via socket) for the server to solve. The server performs the computation and send it back (via socket) back to the client.
• A special command "QUIT" will be used to exit the client and close current connection with the server.

Example:

Server:

> java MathServer 5000
> [listening on port 5000]
> 1 client connected
> [Receive problem ((10 + 20) * 90) / 5]
> [Receive problem 1 + 1 + 1 + 1 + 1 - 10]
> 1 client connection close

(Server continues running to wait for other clients)

Client:

> java MathClient myhost 5000
> [Connected to MathServer, please type QUIT to quit]
> Please type a math problem
> ((10 + 20) * 90) / 5
> [Server Response]: 540
>
> Please type a math problem
> 1 + 1 + 1 + 1 + 1 - 10
> [Server Response]: -5
>
> Please type a math problem
> QUIT
> [Connection Close]
> [Quitting Client]
>

Notes: Answers has to be in MS-word format with necessary screen shot, etc. Please handin with CD (if necessary) and hard copy in its own envelope.