Java tutorial
//package com.java2s; /* * Copyright 2011 ZXing authors * * 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. */ import java.io.IOException; import java.net.HttpURLConnection; public class Main { private static int safelyConnect(HttpURLConnection connection) throws IOException { try { connection.connect(); } catch (NullPointerException e) { // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895 throw new IOException(e); } catch (IllegalArgumentException e) { // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895 throw new IOException(e); } catch (IndexOutOfBoundsException e) { // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895 throw new IOException(e); } catch (SecurityException e) { // this is an Android bug: http://code.google.com/p/android/issues/detail?id=16895 throw new IOException(e); } try { return connection.getResponseCode(); } catch (NullPointerException e) { // this is maybe this Android bug: http://code.google.com/p/android/issues/detail?id=15554 throw new IOException(e); } catch (StringIndexOutOfBoundsException e) { // this is maybe this Android bug: http://code.google.com/p/android/issues/detail?id=15554 throw new IOException(e); } catch (IllegalArgumentException e) { // this is maybe this Android bug: http://code.google.com/p/android/issues/detail?id=15554 throw new IOException(e); } } }