Here you can find the source of mkdirs(String path, boolean deleteBeforeCreate)
public static void mkdirs(String path, boolean deleteBeforeCreate) throws IOException
//package com.java2s; /**//ww w . ja va2s.co m * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.io.IOException; public class Main { public static void mkdirs(String path, boolean deleteBeforeCreate) throws IOException { File file = new File(path); if (deleteBeforeCreate) delete(file); file.mkdirs(); } public static void delete(File file) throws IOException { try { if (file.isDirectory()) { for (File subFile : file.listFiles()) { delete(subFile); } } if (file.exists()) file.delete(); } catch (IOException e) { throw e; } catch (Throwable t) { throw new IOException(t); } } }