This project represents an instant messaging system based on communication.
The system consists of a server side and a client side, the server side sits on the server, and the client side contains a graphical interface for users convenience. For each new client that connects to the chat (to server) by TCP connection, the option is given to perform Several actions. Each action is represented in a graphical interface using buttons: connect and disconnect from the chat, receive the list of users connected to the chat, send a message to all connected clients, send a message to a specific client, receive the file list on the server, download file, stop The download in the middle and continue.