ChatClient.java

import java.io.*;
import java.net.*;
import java.util.Scanner;

public class ChatClient {
    public static void main(String[] args) {
        try (Socket socket = new Socket("localhost", 5000);
             BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
             PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
             Scanner scanner = new Scanner(System.in)) {

            System.out.println("Connected to Chat Server.");

            // Start a thread to listen for incoming messages
            new Thread(() -> {
                try {
                    String serverMessage;
                    while ((serverMessage = in.readLine()) != null) {
                        System.out.println(serverMessage);
                    }
                } catch (IOException e) {
                    System.out.println("Disconnected from server.");
                }
            }).start();

            // User input handling
            while (true) {
                String userInput = scanner.nextLine();
                out.println(userInput);
                if (userInput.equalsIgnoreCase("exit")) {
                    System.out.println("Disconnecting...");
                    break;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}