How to extract and display field in android : <p>Please fins Main.java code below</p>

<pre><code>public class Main extends Activity implements OnClickListener {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    findViewById(R.id.my_button).setOnClickListener(this);
}

@Override
public void onClick(View arg0) {
    Button b = (Button)findViewById(R.id.my_button);
    b.setClickable(false);
    new LongRunningGetIO().execute();
}

private class LongRunningGetIO extends AsyncTask &lt;Void, Void, String&gt; {

    protected String getASCIIContentFromEntity(HttpEntity entity) throws IllegalStateException, IOException {
       InputStream in = entity.getContent();
         StringBuffer out = new StringBuffer();
         int n = 1;
         while (n&gt;0) {
             byte[] b = new byte[4096];
             n =  in.read(b);
             if (n&gt;0) out.append(new String(b, 0, n));
         }
         return out.toString();
    }

    @Override
    protected String doInBackground(Void... params) {
         HttpClient httpClient = new DefaultHttpClient();
         HttpContext localContext = new BasicHttpContext();
         HttpGet httpGet = new HttpGet("http://191.166.1.88:2000");
         String text = null;
         try {
               HttpResponse response = httpClient.execute(httpGet, localContext);
               HttpEntity entity = response.getEntity();
               text = getASCIIContentFromEntity(entity);
         } catch (Exception e) {
             return e.getLocalizedMessage();
         }
         return text;
    }   

    protected void onPostExecute(String results) {
        if (results!=null) {
            EditText et = (EditText)findViewById(R.id.my_edit);
            et.setText(results);
        }
        Button b = (Button)findViewById(R.id.my_button);
        b.setClickable(true);
      }
     }
     }
</code></pre>

<p>I am getting the JSON data from REST API, it is as shown below</p>

<pre><code> {"Tm":{"Time": "Mon Nov 20 12:45:59 IST 2015"},"Name":
 {"Host": "u1", "IP": "190.166.169.137"},"Speed":{"cpu":   
   2494.259033203125}}
</code></pre>

<p>How to extract only Nama of Host that is "u1" and display in text box in android. I am new to it please help</p>
