Java tutorial
//package com.java2s; /* * Qizx/open 4.1 * * This code is the open-source version of Qizx. * Copyright (C) 2004-2009 Axyana Software -- All rights reserved. * * The contents of this file are subject to the Mozilla Public License * Version 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Initial Developer of the Original Code is Xavier Franc - Axyana Software. * */ public class Main { private static int uniqueId = 0; /** * Returns a unique ID which can be used for example as the value of an * attribute of type ID. */ public static final String getUniqueId() { StringBuffer buffer = new StringBuffer(); buffer.append("___"); buffer.append(Long.toString(System.currentTimeMillis(), Character.MAX_RADIX)); buffer.append("."); buffer.append(Integer.toString(uniqueId++, Character.MAX_RADIX)); return buffer.toString(); } }