Here you can find the source of deleteDir(File dir)
public static boolean deleteDir(File dir)
//package com.java2s; /**//from w w w. j a v a 2 s . c o m * Copyright 2013, Landz and its contributors. All rights reserved. * * 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.*; public class Main { /** * Delete recursively. */ public static boolean deleteDir(File dir) { if (!dir.exists()) return true; File[] subfiles = dir.listFiles(); if (subfiles.length > 0) { for (File f : subfiles) { if (f.isFile()) f.delete(); else deleteDir(f); } } return dir.delete(); } }