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Chat Program

A simple command-line chat application built in Java using socket connections and multithreading. This chat application allows multiple users to connect to a server and communicate by exchanging messages and sharing files.

Installation

  1. Clone the Repository:

    git clone https://github.com/Navnedia/Chat-Program.git
cd Chat-Program

  2. Compile the Code:

    javac ChatClient.java
javac ChatServer.java

Usage

  1. Start the Chat Server: run the server by specifying your desired server listening port.

    java ChatServer <port>

    Example: java ChatServer 6001

  2. Connect Client to the Server: on the client machine, run the ChatClient application.

    • -l to specify the local port on the client to receive file requests.
    • -p the remote port of the chat server you wish to connect to.
    • -s (optional) the IP address of the chat server. Defaults to localhost.

    Note: If you are running multiple servers or clients on the same host, make sure none of your listen ports conflict.

    java ChatClient -l <listening port number> -p <connect server port> [-s] [connect server address]

    Example: java ChatClient -l 6002 -p 6001 -s localhost

  3. Client Username: you will be prompted to enter a username.

  4. Start Messaging: Once connected, you will receive messages in the terminal, and you can send your own messages using the M menu option.

  5. File Sharing: Use a designated menu option F to request a file, then follow the prompts to select, the user that owns the file, and the name of the file you want (a file in the current working directory).

  6. Disconnect: you may disconnect at any time by using the X menu option or by terminating the program with CTRL + Z or CTRL + C.