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

public class SimpleServer
{
	public static String serverName = "127.0.0.1";
	public static int serverPortNumber = 1300;

	public static void main(String args[])
	{
		Socket socket = null;
		ServerSocket server = null;
		InputStream is = null;
		DataInputStream dis = null;
		OutputStream os = null;
		DataOutputStream dos = null;
		try
		{
			server = new ServerSocket(serverPortNumber);
			while(true)
			{
				System.out.println("server.accept()...");
				socket = server.accept();
				is = socket.getInputStream();
				dis = new DataInputStream(is);
				os = socket.getOutputStream();
				dos = new DataOutputStream(os);
				String number = dis.readUTF();
				System.out.println("dis.readUTF() returns "+number);
				String reply = "You should send the server one of the following numbers: 1,2 or 3";
				if(number.equals("1")) 
				{
					reply = "one";	
				}
				else if(number.equals("2")) 
				{
					reply = "two";	
				}
				else if(number.equals("3")) 
				{
					reply = "three";	
				}
				System.out.println("dos.writeUTF(\""+reply+"\")");
				dos.writeUTF(reply);
			}
		}	
		catch(IOException e)
		{
			e.printStackTrace();
		}
		finally
		{
			if(is!=null)
			{
				try{is.close();}catch(IOException e){e.printStackTrace();}
			}	
			if(os!=null)
			{
				try{os.close();}catch(IOException e){e.printStackTrace();}
			}
			if(dis!=null)
			{
				try{dis.close();}catch(IOException e){e.printStackTrace();}
			}
			if(dos!=null)
			{
				try{dos.close();}catch(IOException e){e.printStackTrace();}
			}
			if(socket!=null)
			{
				try{socket.close();}catch(IOException e){e.printStackTrace();}
			}
		}
	}
}