Determine if a String is contained in a String Collection

     
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;
  }

}

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Determine if a String is contained in a String Collection : String search « Data Type « Java

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