It is necessary to get the result of GET query Android and the return value from the method.
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public void sayHello (View view) throws IOException {
    Thread httpThread = new Thread (new Runnable () {
      public void run () {
        String mybla = sendGet ();
      }
    });
    httpThread.start ();
  }
private String sendGet () {
    Try {
      String mystr = "http://www.pravda.com.ua";
      URL obj = new URL (mystr);
      HttpURLConnection con = (HttpURLConnection) obj.openConnection ();
      con.setRequestMethod ( "GET");
      con.setRequestProperty ( "User-Agent", "Mozilla / 5.0");
      con.setRequestProperty ( "Accept-Charset", "UTF-8");
      InputStream response = con.getInputStream ();
      Scanner s = new Scanner (response) .useDelimiter ( "\\ A");
      String result = s.hasNext ()? s.next (): "";
      RETURN RESULT;
    }
    catch (Exception e) {
      return e.toString ();
    }
  }

Answer 1, Authority 100%

All of doing the right thing. To read the stream and get out of it String , can use, for example, library Apache commons IOUtils ( off. site). With its help:

String result = IOUtils.toString (inputStream);

If predpochetaete the way without third-party libraries (which I welcome because it allows you to learn something new about the language in which you are a beginner), do like this:

Scanner s = new Scanner (inputStream) .useDelimiter ( "\\ A");
String result = s.hasNext ()? s.next (): "";

UPD :

Wrap in

new Thread (new Runnable () {
   public void run () {
    // call your code to a network request
   }
  .}) Start ();

When your query returned a result within your Thread , to change the interface element you need to do it from the UI-thread. To do this, use the Context.runOnUiThread ();

.

Answer 2

The code using liby OkHttp

OkHttpClient client = new OkHttpClient.Builder () build ().;
String url = ...;
Request.Builder request = new Request.Builder ();
request.url (url);
request.get ();
. Response response = client.newCall (request.build ()) execute ();
. String response = response.body () string ();
System.out.println (response);

It is necessary to remember that requests for android in the network can be done with API14 just outside the UI thread. For example through AsynkTask, Thread etc