Java Delete Tree delTree(File dir)

Description

Delete a directory and its contents.

License

Open Source License

Return

true iff successful

Declaration

public static boolean delTree(File dir) 

Method Source Code

//package com.java2s;
/*/*from   w w w  .j  av  a2  s .com*/
 * $Id$
 *
    
Copyright (c) 2000-2014 Board of Trustees of Leland Stanford Jr. University,
all rights reserved.
    
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
    
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
    
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
STANFORD UNIVERSITY BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    
Except as contained in this notice, the name of Stanford University shall not
be used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Stanford University.
    
*/

import java.io.*;

public class Main {
    /** Delete a directory and its contents.
     * @return true iff successful */
    public static boolean delTree(File dir) {
        emptyDir(dir);
        if (dir.delete()) {
            return true;
        } else
            return !dir.exists();
    }

    /** Delete the contents of a directory, leaving the empty directory.
     * @return true iff successful */
    public static boolean emptyDir(File dir) {
        String files[] = dir.list();
        if (files == null) {
            return false; // true would imply there's an empty
            // dir, which there doesn't seem to be
        }
        boolean ret = true;
        for (int i = 0; i < files.length; i++) {
            File f = new File(dir, files[i]);
            if (f.isDirectory()) {
                ret = ret && emptyDir(f);
            }
            if (!f.delete()) {
                ret = false;
            }
        }
        return ret;
    }
}

Related

1. deleteTree(File dir)
2. deleteTree(File dir)
3. deleteTree(File f)
4. deleteTree(File file, boolean check)
5. deleteTree(final File file)
6. delTree(File dir)
7. delTree(File dir, boolean deleteDirItSelf)
8. delTree(File directory)
9. deltree(File directory)