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This project implements a simple file transfer system using client-server architecture in Java. The system allows clients to request a list of text files on the server and upload new files. The server handles multiple clients using a multi-threaded design.

• Client:

  • list: Lists all files on the server.
  • put fname: Uploads a file (fname) to the server. Returns an error if the file already exists.

• Server:

  • Manages up to 20 concurrent client connections using a thread pool.
  • Stores uploaded files in theserverFiles directory.
  • Logs all valid client requests inlog.txt.

cwk/ ├── client/ │ ├── Client.java │ └── lipsum2.txt (example file to upload) ├── server/ │ ├── Server.java │ └── serverFiles/ │ └── lipsum1.txt (example file on the server)

1. Navigate to theserver directory and compile the Java files:

   cd cwk/serverjavac Server.java

2. Start the server:

   java Server

1. In another terminal, navigate to the client directory and compile the Java files:

   cd cwk/clientjavac Client.java

2. Execute the client with the appropriate command:

   To list all files on the server:

     java Client list

   To upload a file to the server:

      java Client put lipsum2.txt