Here you can find the source of parse(String dateString)
public static Date parse(String dateString)
//package com.java2s; /*/*from w ww . jav a 2 s . c o m*/ * Copyright (c) 2010 - 2015 Norwegian Agency for Pupblic Government and eGovernment (Difi) * * This file is part of Oxalis. * * Licensed under the EUPL, Version 1.1 or ? as soon they will be approved by the European Commission * - subsequent versions of the EUPL (the "Licence"); You may not use this work except in compliance with the Licence. * * You may obtain a copy of the Licence at: * * https://joinup.ec.europa.eu/software/page/eupl5 * * Unless required by applicable law or agreed to in writing, software distributed under the Licence * is distributed on an "AS IS" basis, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Licence for the specific language governing permissions and limitations under the Licence. * */ import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; public class Main { private static final String rfc822DateFormat = "EEE, dd MMM yyyy HH:mm:ss Z"; public static Date parse(String dateString) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat( rfc822DateFormat); Date parsedDate = null; try { parsedDate = simpleDateFormat.parse(dateString); } catch (ParseException e) { throw new IllegalArgumentException("Unable to parseMultipart '" + dateString + "' into a date using format '" + rfc822DateFormat + "'"); } return parsedDate; } }