Here you can find the source of getFilesFromDirectoryByExtension(File directory, String extension)
public static List<File> getFilesFromDirectoryByExtension(File directory, String extension)
//package com.java2s; /*/*from w w w .ja va 2 s .co m*/ * Musicdroid: An on-device music generator for Android * Copyright (C) 2010-2014 The Catrobat Team * (<http://developer.catrobat.org/credits>) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * An additional term exception under section 7 of the GNU Affero * General Public License, version 3, is available at * http://developer.catrobat.org/license_additional_term * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.io.File; import java.io.FileFilter; import java.util.ArrayList; import java.util.List; public class Main { public static List<File> getFilesFromDirectoryByExtension(File directory, String extension) { String[] extensions = { extension }; return getFilesFromDirectoryByExtension(directory, extensions); } public static List<File> getFilesFromDirectoryByExtension(File directory, final String[] extensions) { List<File> filesFound = new ArrayList<File>(); File[] contents = directory.listFiles(new FileFilter() { @Override public boolean accept(File pathname) { // ignore automatically created build.xml files if (pathname.getName().equals("build.xml")) { return false; } for (String extension : extensions) { if (pathname.getName().endsWith(extension)) { return true; } } return (pathname.isDirectory() && !pathname.getName().equals("gen") && !pathname.getName().equals("reports")); } }); for (File file : contents) { if (file.isDirectory()) { filesFound.addAll(getFilesFromDirectoryByExtension(file, extensions)); } else { filesFound.add(file); } } return filesFound; } }