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The source code

/*
 * Copyright 2002-2004 The Apache Software Foundation.
 * 
 * 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.
 */
package org.apache.commons.io.filefilter;

import java.io.File;

/**
 * This filter accepts Files that are directories.
 * 

* For example, here is how to print out a list of the * current directory's subdirectories: * *

 * File dir = new File(".");
 * String[] files = dir.list( DirectoryFileFilter.INSTANCE );
 * for ( int i = 0; i < files.length; i++ ) {
 *     System.out.println(files[i]);
 * }
 * 
* * @since Commons IO 1.0 * @version $Revision: 1.7 $ $Date: 2004/02/23 04:37:57 $ * * @author Henri Yandell * @author Stephen Colebourne * @author Peter Donald */ public class DirectoryFileFilter extends AbstractFileFilter { /** Singleton instance of directory filter */ public static final IOFileFilter INSTANCE = new DirectoryFileFilter(); /** * Restrictive consructor. */ protected DirectoryFileFilter() { } /** * Checks to see if the file is a directory. * * @param file the File to check * @return true if the file is a directory */ public boolean accept(File file) { return file.isDirectory(); } }
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