code: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.
   */
  package org.apache.commons.io.filefilter;
  
  import java.io.File;
  import java.io.Serializable;
  
  /**
   * This filter accepts <code>File</code>s that are files (not directories).
   * <p>
   * For example, here is how to print out a list of the real files
   * within the current directory:
   *
   * <pre>
   * File dir = new File(".");
   * String[] files = dir.list( FileFileFilter.FILE );
   * for ( int i = 0; i &lt; files.length; i++ ) {
   *     System.out.println(files[i]);
   * }
   * </pre>
   *
   * @since Commons IO 1.3
   * @version $Revision:587916 $ $Date: 2010-10-06 17:13:01 +0100 (Wed, 06 Oct 2010) $
   * @see FileFilterUtils#fileFileFilter()
   */
  public class FileFileFilter extends AbstractFileFilter implements Serializable {
  
      /** Singleton instance of file filter */
      public static final IOFileFilter FILE = new FileFileFilter();
  
      /**
       * Restrictive consructor.
       */
      protected FileFileFilter() {
      }
  
      /**
       * Checks to see if the file is a file.
       *
       * @param file  the File to check
       * @return true if the file is a file
       */
      @Override
      public boolean accept(File file) {
          return file.isFile();
      }
  
  }
  