Java Delete File Recursively deleteRecursively(File dir)

Description

Attempts to recursively delete a directory.

License

Apache License

Parameter

Parameter	Description
dir	directory to delete along with contents

Return

true if all files and dirs were deleted successfully

Declaration

public static boolean deleteRecursively(File dir) 

Method Source Code

//package com.java2s;
/*/*from   w  ww .  j a v  a  2s. com*/
 * Copyright Myrrix Ltd
 *
 * 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.
 */

import java.io.File;

import java.util.ArrayDeque;
import java.util.Deque;

public class Main {
    /**
     * Attempts to recursively delete a directory. This may not work across symlinks.
     *
     * @param dir directory to delete along with contents
     * @return {@code true} if all files and dirs were deleted successfully
     */
    public static boolean deleteRecursively(File dir) {
        if (dir == null) {
            return false;
        }
        Deque<File> stack = new ArrayDeque<File>();
        stack.push(dir);
        boolean result = true;
        while (!stack.isEmpty()) {
            File topElement = stack.peek();
            if (topElement.isDirectory()) {
                File[] directoryContents = topElement.listFiles();
                if (directoryContents != null && directoryContents.length > 0) {
                    for (File fileOrSubDirectory : directoryContents) {
                        stack.push(fileOrSubDirectory);
                    }
                } else {
                    result = result && stack.pop().delete();
                }
            } else {
                result = result && stack.pop().delete();
            }
        }
        return result;
    }
}

Related

1. deleteRecursive(final File file, final boolean collect)
2. deleteRecursiveDir(File directory)
3. deleteRecursiveDirectories(String mainDir)
4. deleteRecursiveDirectory(String dirName)
5. deleteRecursiveFileDir(File dir)
6. deleteRecursively(File directory)
7. deleteRecursively(File dirEntry)
8. deleteRecursively(File f)
9. deleteRecursively(File f)