BavlsikClient.java

package MV3500Cohort2024JulySeptember.homework2.Bavlsik;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.Scanner;

/**
 * This client attempts to connect to a desired server. If the client is unable
 * to connect then it exits the program. Enter 'quit' to the command line at any
 * time to exit.
 * @author tbavlsik
 */
public class BavlsikClient {

    /**
     * Localhost address.
     */
    public final static String LOCALHOST = "0:0:0:0:0:0:0:1"; //Local host

    /**
     * @param args the command line arguments
     * @throws java.lang.Exception
     */
    public static void main(String[] args) throws Exception {
        Socket socket = new Socket(LOCALHOST, 2317);

        Thread readerThread = new Thread(new Reader(socket));
        readerThread.start();

        PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextLine()) {
            String msg = scanner.nextLine();
            //If the client wants to exit, type quit and close the socket
            if(msg.equalsIgnoreCase("quit")){
                socket.close();
            }
            //Checks to see if client or server closed socket, if so, end the program
            if (socket.isClosed()) {
                System.out.println("Connection closed. Exiting...");
                break;
            }
            else{
                out.println(msg);
            }
        }
        readerThread.join();
    }

    private static class Reader implements Runnable {

        private BufferedReader in;
        private Socket socket;

        public Reader(Socket socket) throws IOException {
            this.socket = socket;
            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        }

        @Override
        public void run() {
            try {
                String message;
                while ((message = in.readLine()) != null) {
                    System.out.println(message);
                }
            } catch (IOException e) {
                System.out.println("Disconnected from server.");
            } finally {
                try {
                    socket.close();
                } catch (IOException e) {
                    System.out.println("Error closing socket: " + e);
                }
            }
        }
    }

}