final ArrayList<String> pic = new ArrayList<String>();
    final ArrayList<String> name = new ArrayList<String>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        String url="http://192.168.11.6/android_connect/query.php";
        txt=(TextView)findViewById(R.id.textView);
        txt1=(TextView)findViewById(R.id.textView2);
        RequestQueue mQueue = Volley.newRequestQueue(this);
        JsonArrayRequest req = new JsonArrayRequest(url,
                new Response.Listener<JSONArray>() {
                    @Override
                    public void onResponse(JSONArray response) {
                        for (int i = 0; i < response.length(); i++)
                        {
                            try {
                            JSONObject jobj= response.getJSONObject(i);
                            name.add(jobj.getString("name"));
                            pic.add(jobj.getString("pic"));
                            Log.v("PROGRAM_TAG", "jobj=" + response.getJSONObject(i));
                            }
                            catch (Exception e) {Log.e("PROGRAM_TAG","JsonException",e);}
                        }
                        Log.d("TAG",String.valueOf(name.isEmpty()));
                        txt1.setText(name.toString());
                    }
                }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Log.d("TAG", "Error: " + error.getMessage());
            }
        });
        txt.setText(String.valueOf(name.isEmpty()));
        mQueue.add(req);