Problemas com Sockets e Streams java

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

public class DayClient2 {
  public static final int DAYTIME_PORT = 13;
  String host;
  Socket s;
 
  public DayClient2(String host) { //Construtor
    this.host = host;
  }

  public void go() throws IOException {
    try {
		s = new Socket(host, DAYTIME_PORT);
    	BufferedReader i = new BufferedReader(new InputStreamReader(s.getInputStream()));
    	System.out.println(i.readLine());
    	i.close();
    	s.close();
  	} 
	catch (UnknownHostException ue) {
		System.out.println("Impossivel conectar ao Servidor. Host desconhecido!");
	}
	catch (ConnectException ce) {
		System.out.println("Impossivel conectar ao Servidor. Sorry!");
		//System.out.println("Mensagem:"+ce.getMessage());
		if (ce.getMessage().contains("Connection timed out"))
			System.out.println("Timeout da tentativa de conectar expirou.");
		else if (ce.getMessage().contains("Connection refused"))
				System.out.println("Conexao recusada pelo Servidor");

	}
  }

  public static void main(String args[]) throws IOException {
   	String name="";

	if (args.length != 0)
		name = args[0];
	else {
	  BufferedReader in = new BufferedReader (new InputStreamReader(System.in));
      try {
		do {
       		System.out.print ("Entre com hostname ou endereco IP: ");
       		System.out.flush ();
       		name = in.readLine ();
    	} while ((name.equals("")) && (!name.equalsIgnoreCase("exit")) );//&& (name != null) );

 	    if (name.equalsIgnoreCase("exit")){
    		System.out.println ("Saionara!");
    		System.exit(0);
		}	

		System.out.println("Conectando...");

	  } catch (NullPointerException ex) {
    	System.out.println ("\n Abandonando...");
    	System.exit(0);
      }
 	}				
	
	DayClient2 rdate = new DayClient2(name);
	rdate.go();
  }//main
}//class

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

public class DayServer2 {
  public static final int DAYTIME_PORT = 13;
  private ServerSocket ss;

  public static void main(String args[]) throws IOException {
    DayServer2 d = new DayServer2();
    d.go();
  }

  public void go() throws IOException {
    InetAddress myself = InetAddress.getLocalHost(); //Pega o endereço Local
	Socket s = null;
    ss = new ServerSocket(DAYTIME_PORT, 5);
    for (;;) {
      s = ss.accept();
	  System.out.println("Atendendo Cliente: "+ s.getInetAddress().getHostName()+"->"+s.getInetAddress().getHostAddress());
      BufferedWriter out = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
      out.write("Data e hora em " + myself.getHostName() + ": " + (new Date()).toString() + "\n");
      out.close();
      s.close();
    }
  }
}

class FTP{
	
	public FTP() throws NumberFormatException, UnknownHostException, IOException{
		Socket destino=new Socket("localhost", Integer.parseInt("9999"));
		enviarArquivo(destino,"c:\\windows\\desktop\\oi.dun");
		
	}
	/*public boolean getTamanho(InputStream arquivo){
		int size=arquivo.available();
		return size;
	}*/
	
	public static void enviarArquivo(Socket socket,String origem) {
		String nomeDestino="c:\\Temp\\arq1.txt";
	FileInputStream in;
	FileOutputStream out;
	int length;
	byte[] buffer;
	File arquivoOrigem=new File(origem);
	File arquivoDestino=new File(nomeDestino);
	try{
	
		if(arquivoOrigem.exists() && !arquivoDestino.exists()){
		in=new FileInputStream(origem);
		out=new FileOutputStream(arquivoDestino);
	//	buffer=new byte[8192];
		int size=in.available();
		buffer=new byte[size];
		length=in.read(buffer);
		
		while (length!=1){
		out.write(buffer,0,length);
		length=in.read(buffer);
	}
	
	in.close();
	out.flush();
	out.close();
	}	

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