Here you can find the source of clearFolder(File f)
public static void clearFolder(File f) throws IOException
//package com.java2s; /**//from w w w . ja v a 2 s. c o m * Copyright (c) 2015 The original author or authors * <p> * 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 * <p> * http://www.apache.org/licenses/LICENSE-2.0 * <p> * 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 clearFolder(File f) throws IOException { if (f.isDirectory()) { for (File c : f.listFiles()) delete(c); } } public static void delete(File f) throws IOException { clearFolder(f); f.delete(); } }