Android HTTP

package com.patschi.scenegamers;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import com.patschi.scenegamers.R;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.content.SharedPreferences;
import android.view.Menu;
import android.widget.Toast;

/*
    // MODE_PRIVATE defines that no other app can access the data
    SharedPreferences settings = this.getSharedPreferences("SceneGamersApp", MODE_PRIVATE);

    // save data in the shared preferences
    SharedPreferences.Editor editor = settings.edit();
    editor.putString("Username", "Hans Wurst");
    editor.commit();

    // remove the setting again
    editor.remove("Username");
    editor.commit();
*/

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        loadNews();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    private void loadNews() {
        class HttpGetAsyncTask extends AsyncTask<String, Void, String>{
            @Override
            protected String doInBackground(String... params) {
                HttpClient httpClient = new DefaultHttpClient();
                HttpGet httpGet = new HttpGet("http://domain.tld/json.php");
                try {
                    HttpResponse httpResponse = httpClient.execute(httpGet);
                    System.out.println("httpResponse");
                    InputStream inputStream = httpResponse.getEntity().getContent();
                    InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
                    BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
                    StringBuilder stringBuilder = new StringBuilder();
                    String bufferedStrChunk = null;
                    while((bufferedStrChunk = bufferedReader.readLine()) != null){
                        stringBuilder.append(bufferedStrChunk);
                    }
                    return stringBuilder.toString();
                 } catch (ClientProtocolException cpe) {
                    System.out.println("Exception of httpResponse:" + cpe);
                    cpe.printStackTrace();
                    return null;
                 } catch (IOException ioe) {
                    System.out.println("2nd exception of httpResponse:" + ioe);
                    ioe.printStackTrace();
                    return null;
                }
            }

            @Override
            protected void onPostExecute(String result) {
                super.onPostExecute(result);
                Toast.makeText(getApplicationContext(), "Done.", Toast.LENGTH_LONG).show();
            }

            HttpGetAsyncTask httpGetAsyncTask = new HttpGetAsyncTask();
            HttpGetAsyncTask.execute();
        }
    }
}