Here you can find the source of getFileListing(File file)
public static List<File> getFileListing(File file)
//package com.java2s; /*// ww w. ja v a 2s .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.util.ArrayList; import java.util.Arrays; import java.util.List; public class Main { public static List<File> getFileListing(File file) { List<File> list = new ArrayList<File>(); if (file.isDirectory()) { for (File f : file.listFiles()) { list.addAll(getFileListing(f)); } } else { return Arrays.asList(new File[] { file }); } return list; } }