Here you can find the source of getTimeZone(String idParam)
private static java.util.TimeZone getTimeZone(String idParam)
//package com.java2s; /**/*from www . ja v a 2 s. c om*/ * Copyright 2015 Jan Lolling jan.lolling@gmail.com * * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { private static java.util.TimeZone getTimeZone(String idParam) { if (idParam == null || idParam.isEmpty()) { throw new IllegalArgumentException( "id for time zone cannot be null or empty"); } idParam = idParam.trim(); String[] tzArray = java.util.TimeZone.getAvailableIDs(); for (String id : tzArray) { if (id.equalsIgnoreCase(idParam)) { return java.util.TimeZone.getTimeZone(id); } } return null; } }