FingerprintDataVerification/TCPClient.java

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

public class TCPClient {
    public static void startClient() {
        String serverAddress = "127.0.0.1"; // Make sure this matches your TypeScript server
        int port = 12345;

        try (Socket socket = new Socket(serverAddress, port);
             BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
             PrintWriter writer = new PrintWriter(socket.getOutputStream(), true)) {

            // Send a message to the TypeScript server
            writer.println("Hello, Server from Java!");

            // Receive response from the TypeScript server
            String response = reader.readLine();
            System.out.println("Server says: " + response);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}