Here you can find the source of parseDate(long millisec, String format)
public static String parseDate(long millisec, String format)
//package com.java2s; /**//from w w w . j a v a 2 s . c o m * * Copyright (c) 2015 Textquo and others. All rights reserved. * 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. * * __ __ __ * .--.--.--------| |--.----.-----| | .---.-. * | | | | _ | _| -__| | | _ | * |_____|__|__|__|_____|__| |_____|__|__|___._| * :: Commons, GWT and GAE Utility classes :: * */ import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; public class Main { private static final List<SimpleDateFormat> knownPatterns = new ArrayList<SimpleDateFormat>(); public static Date parseDate(String date) { for (SimpleDateFormat pattern : knownPatterns) { try { // Take a try return new Date(pattern.parse(date).getTime()); } catch (ParseException pe) { // Loop on } } return null; } public static Date parseDate(String date, String format) { try { SimpleDateFormat formatter = new SimpleDateFormat(format); Date formattedDate = formatter.parse(date); return formattedDate; } catch (Exception e) { e.printStackTrace(); } return null; } public static Date parseDate(long millisec) { Calendar calendar = Calendar.getInstance(); calendar.setTimeInMillis(millisec); Date date = calendar.getTime(); return date; } public static String parseDate(long millisec, String format) { try { SimpleDateFormat formatter = new SimpleDateFormat(format); Date formattedDate = new Date(millisec); String result = formatter.format(formattedDate); return result; } catch (Exception e) { e.printStackTrace(); } return null; } }