Java tutorial
//package com.java2s; import java.io.IOException; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; public class Main { private static InputStream getInputStreamFromURL(String urlStr) { HttpURLConnection urlConn = null; InputStream inputStream = null; try { URL url = new URL(urlStr); urlConn = (HttpURLConnection) url.openConnection(); inputStream = urlConn.getInputStream(); } catch (IOException e) { return null; } return inputStream; } }