Keine Verbindung mit Socket

1public class MainActivity extends Activity {
2
3 private Socket client;
4 private Thread thread;
5 private EditText chat, input;
6
7 @Override
8 protected void onCreate(Bundle savedInstanceState) {
9 super.onCreate(savedInstanceState);
10 setContentView(R.layout.activity_main);
11 input = (EditText) findViewById(R.id.input);
12 chat = (EditText) findViewById(R.id.chat);
13 new MainActivity();
14 }
15
16 public MainActivity() {
17 thread = new Thread(new Runnable() {
18 @Override
19 public void run() {
20 try {
21 client = new Socket("127.0.0.1", 9999);
22 }
23 catch (UnknownHostException e) {
24 Log.d("Fehler", "UnknownHostException");
25 }
26 catch (IOException e) {
27 Log.d("Fehler", "IOException");
28 }
29 if (client == null)
30 Log.d("Fehler", "Keine Verbindung.");
31 else
32 Log.d("Ok", "Verbindung erfolgreich");
33 }
34 });
35 thread.start();
36 }

1Fehler IOException
2Fehler Keine Verbindung.
3Fehler IOException
4Fehler Keine Verbindung.