Here you can find the source of FormatDataSize(long uBytes)
public static String FormatDataSize(long uBytes)
//package com.java2s; /*//w ww . j av a 2 s. c o m KeePass Password Safe - The Open-Source Password Manager Copyright (C) 2003-2014 Dominik Reichl <dominik.reichl@t-online.de> This program 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 2 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, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ public class Main { public static String FormatDataSize(long uBytes) { final long uKB = 1024; final long uMB = uKB * uKB; final long uGB = uMB * uKB; final long uTB = uGB * uKB; if (uBytes == 0) return "0 KB"; if (uBytes <= uKB) return "1 KB"; if (uBytes <= uMB) return (((uBytes - 1L) / uKB) + 1L) + " KB"; if (uBytes <= uGB) return (((uBytes - 1L) / uMB) + 1L) + " MB"; if (uBytes <= uTB) return (((uBytes - 1L) / uGB) + 1L) + " GB"; return (((uBytes - 1L) / uTB) + 1L) + " TB"; } }