Android Client not able to connect to a server

I have a server running on my computer and I would like my android app to connect to it. In other words, I would like to write an Android client that establishes a TCP connection, writes something to the server and listens for responses from the server. Below is the client code:

public class Text extends A开发者_如何学Pythonctivity 
{
    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        String fromServer, ToServer, filename;
        BufferedReader inFromServer;
        PrintWriter outToServer;
        Socket clientSocket;

        super.onCreate(savedInstanceState);

        try 
        {
        clientSocket = new Socket("86.36.32.251", 8000);
        outToServer  = new PrintWriter(clientSocket.getOutputStream(),true);
        inFromServer = new BufferedReader(
                   new InputStreamReader(clientSocket.getInputStream()));

        filename = "profile.txt";
        ToServer = Reader.readFileAsString(filename);
        ToServer += "\n";

        outToServer.println(ToServer);

        while((fromServer = inFromServer.readLine()) != null)
        {
            TextView tv = new TextView(this);
            tv.setText(fromServer);
            setContentView(tv);
        }

        inFromServer.close();
    }
    catch(UnknownHostException e)
    {
        e.printStackTrace();
    }
    catch (IOException e) 
    {
        e.printStackTrace();
    }
}

}

However, when I run my application, the application does not establish a TCP connection to my server. I don't know what the problem might be. I have gone through the following link http://thinkandroid.wordpress.com/2010/03/27/incorporating-socket-programming-into-your-applications/ which discusses the client-side of socket programming and I feel I have all the main steps in my client. Could someone please help me resolving the issue. Thanks

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Please make sure you've added the internet permission. If you did, run this on a real device. If it still doesn't work, paste the logcat.