Java tutorial
package edu.asu.msse.sgowdru.moviesqldb; import android.os.AsyncTask; import org.json.JSONObject; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.Reader; import java.net.URL; import java.nio.charset.Charset; /* Copyright 2016 Sunil Gowdru C, * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * Purpose: Show Movie description with multiple details * By reading from Native Database if necessary or by requesting data from OMDB and storing in database * * I hereby give the instructors, TA right to use of building and evaluating * the software package for the purpose of determining your grade and program assessment. * * SER 598 - Mobile Systems * @author Sunil Gowdru C * mailto:sunil.gowdru@asu.edu * Software Engineering, CIDSE, IAFSE, ASU Poly * @version March 2016 */ public class MovieGetInfoAsync extends AsyncTask<String, Void, JSONObject> { JSONObject json = null; //Setting up reader for the stream String readAll(Reader rd) throws IOException { StringBuilder sb = new StringBuilder(); int cp; while ((cp = rd.read()) != -1) { sb.append((char) cp); } return sb.toString(); } @Override protected JSONObject doInBackground(String... strings) { //Open the input stream and read data from internet in JSON format //return json from the this method try { InputStream is = new URL(strings[0]).openStream(); BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8"))); String jsonText = readAll(rd); json = new JSONObject(jsonText); android.util.Log.w(getClass().getSimpleName(), json.toString()); } catch (Exception e) { e.printStackTrace(); } return json; } }