Java tutorial
import java.util.Collection; import java.util.Iterator; /********************************************************************************** * $URL: https://source.sakaiproject.org/svn/util/branches/sakai_2-5-4/util-util/util/src/java/org/sakaiproject/util/StringUtil.java $ * $Id: StringUtil.java 34934 2007-09-10 22:52:23Z lance@indiana.edu $ *********************************************************************************** * * Copyright (c) 2003, 2004, 2005, 2006 The Sakai Foundation. * * Licensed under the Educational Community License, Version 1.0 (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.opensource.org/licenses/ecl1.php * * 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. * **********************************************************************************/ /** * <p> * StringUtil collects together some string utility classes. * </p> */ public class StringUtil { /** * Determine if a String is contained in a String Collection * * @param stringCollection * The collection of (String) to scan * @param value * The value to look for * @return true if the string was found */ public static boolean contains(Collection stringCollection, String value) { if (stringCollection == null || value == null) return false; if (value.length() == 0) return false; for (Iterator i = stringCollection.iterator(); i.hasNext();) { Object o = i.next(); if (!(o instanceof String)) continue; if (value.equals((String) o)) return true; } return false; } }