Java tutorial
//package com.java2s; /* * Copyright appNativa Inc. All Rights Reserved. * * This file is part of the Real-time Application Rendering Engine (RARE). * * RARE is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * */ import java.io.File; public class Main { public static long getDirectorySize(File path) { if (!path.isDirectory()) { return path.length(); } long size = 0; if (path.exists()) { File[] files = path.listFiles(); for (int i = 0; i < files.length; i++) { if (files[i].isDirectory()) { size += getDirectorySize(files[i]); } else { size += files[i].length(); } } } return size; } }