Here you can find the source of isAbsoluteUrl(String imageUrl)
private static boolean isAbsoluteUrl(String imageUrl)
//package com.java2s; /**// w w w . j av a 2 s . c om * * Pep - Slideshows using HTML5 * Copyright (c) 2012, Sandeep Gupta * * 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. * */ public class Main { private static boolean isAbsoluteUrl(String imageUrl) { if (imageUrl.startsWith("http://") || imageUrl.startsWith("https://") || imageUrl.startsWith("ftp://")) { return true; } return false; } }