Java Delete Directory deleteDirectoryContent(final String strDir)

Description

Delete all files and directories in directory but do not delete the directory itself.

License

Open Source License

Parameter

Parameter	Description
strDir	- string that specifies directory to delete

Return

boolean - sucess flag

Declaration

public static boolean deleteDirectoryContent(final String strDir) 

Method Source Code

//package com.java2s;
/*//from w  w  w  . ja  v a  2s.  c  om
 *    Debrief - the Open Source Maritime Analysis Application
 *    http://debrief.info
 *
 *    (C) 2000-2014, PlanetMayo Ltd
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the Eclipse Public License v1.0
 *    (http://www.eclipse.org/legal/epl-v10.html)
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 */

import java.io.File;

public class Main {
    /** 
     * Delete all files and directories in directory but do not delete the
     * directory itself.
     * 
     * @param strDir - string that specifies directory to delete
     * @return boolean - sucess flag
     */
    public static boolean deleteDirectoryContent(final String strDir) {
        return ((strDir != null) && (strDir.length() > 0)) ? deleteDirectoryContent(new File(strDir)) : false;
    }

    /** 
     * Delete all files and directories in directory but do not delete the
     * directory itself.
     * 
     * @param fDir - directory to delete
     * @return boolean - sucess flag
     */
    public static boolean deleteDirectoryContent(final File fDir) {
        boolean bRetval = false;

        if (fDir != null && fDir.isDirectory()) {
            final File[] files = fDir.listFiles();

            if (files != null) {
                bRetval = true;
                boolean dirDeleted;

                for (int index = 0; index < files.length; index++) {
                    if (files[index].isDirectory()) {
                        // TODO: Performance: Implement this as a queue where you add to
                        // the end and take from the beginning, it will be more efficient
                        // than the recursion
                        dirDeleted = deleteDirectoryContent(files[index]);
                        if (dirDeleted) {
                            bRetval = bRetval && files[index].delete();
                        } else {
                            bRetval = false;
                        }
                    } else {
                        bRetval = bRetval && files[index].delete();
                    }
                }
            }
        }

        return bRetval;
    }
}

Related

1. deleteDirectory(String dirName)
2. deleteDirectory(String dirname, boolean recursive)
3. deleteDirectory(String fileName)
4. deleteDirectory(String folder)
5. deleteDirectory(String name)
6. deleteDirectoryContents(File directory)
7. deleteDirectoryContents(File directory)
8. deleteDirectoryContents(File directory)
9. deleteDirectoryContents(File directory)