[JAVA] SERVER CLIENT TCP

import java.io.*;

import java.net.*;

public class TCPServer {

    public static void main(String[] args) throws IOException {

        ServerSocket serverSocket = new ServerSocket(12345); // Listen on port 12345

        System.out.println("Server listening on port 12345...");

        Socket clientSocket = serverSocket.accept(); // Accept client connection

        System.out.println("Client connected: " + clientSocket.getInetAddress());

        BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));

        PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);

        String message = in.readLine(); // Read message from client

        System.out.println("Received from client: " + message);

        out.println("Hello from server!"); // Send response to client

        clientSocket.close();

        serverSocket.close();

    }

}