simple multithreading TCP echo server in (ugly) Java

EchoServer.java

import java.io.*;
import java.net.*;
import java.lang.Thread;

public class EchoServer {
  public static void main (String[] args) {
    try {
      ServerSocket server = new ServerSocket(5566);
      while (true) {
        Socket client = server.accept();
        EchoHandler handler = new EchoHandler(client);
        handler.start();
      }
    }
    catch (Exception e) {
      System.err.println("Exception caught:" + e);
    }
  }
}

class EchoHandler extends Thread {
  Socket client;
  EchoHandler (Socket client) {
    this.client = client;
  }

  public void run () {
    try {
      BufferedReader reader = new BufferedReader(new InputStreamReader(client.getInputStream()));
      PrintWriter writer = new PrintWriter(client.getOutputStream(), true);
      writer.println("[type 'bye' to disconnect]");

      while (true) {
        String line = reader.readLine();
        if (line.trim().equals("bye")) {
          writer.println("bye!");
          break;
        }
        writer.println("[echo] " + line);
      }
    }
    catch (Exception e) {
      System.err.println("Exception caught: client disconnected.");
    }
    finally {
      try { client.close(); }
      catch (Exception e ){ ; }
    }
  }
}

Thanks!

thanks!

thanks!

Thx!

Thx!

Thanks :)

Thanks :)

Can more than one client communicate with this server at the same time?

thx!

thanks!