Did you connect to the server during your last project?

Yes, in my recent Java project, I implemented server connection using sockets. For example, for a TCP connection, I used the Socket class from the standard library. Here's a simplified example:

import java.io.*;
import java.net.Socket;

public class Client {
    public static void main(String[] args) {
        try (Socket socket = new Socket("example.com", 80);
             PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
             BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()))) {

            out.println("GET / HTTP/1.1\r\nHost: example.com\r\n\r\n");
            String responseLine;
            while ((responseLine = in.readLine()) != null) {
                System.out.println(responseLine);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

This approach allows sending requests and receiving responses from the server over TCP.