Here you can find the source of intToHexString(int value, int digits)
public static String intToHexString(int value, int digits)
//package com.java2s; /**//from w w w . j ava 2s . c o m * * Copyright (C) 2004-2008 FhG Fokus * * This file is part of the FhG Fokus UPnP stack - an open source UPnP implementation * with some additional features * * You can redistribute the FhG Fokus UPnP stack and/or modify it * under the terms of the GNU General Public License Version 3 as published by * the Free Software Foundation. * * For a license to use the FhG Fokus UPnP stack software under conditions * other than those described here, or to purchase support for this * software, please contact Fraunhofer FOKUS by e-mail at the following * addresses: * upnpstack@fokus.fraunhofer.de * * The FhG Fokus UPnP stack 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/> * or write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ public class Main { /** Converts a value to a hex string with a fixed number of digits. */ public static String intToHexString(int value, int digits) { String result = Integer.toHexString(value); for (int i = result.length(); i < digits; i++) { result = "0" + result; } // trim result if needed if (result.length() > digits) { return result.substring(result.length() - digits); } return result; } }