Here you can find the source of formatDate2DateTimeStr()
public static final String formatDate2DateTimeStr()
//package com.java2s; /**/*from w ww .j a v a 2s .c o m*/ * DateTimeUtil.java * * Copyright 2010 Niolex, Inc. * * Niolex licenses this file to you 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. */ import java.text.SimpleDateFormat; import java.util.Date; import java.util.TimeZone; public class Main { /** * The date time format, including details to seconds. */ public static final String DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss"; private static TimeZone TIME_ZONE; /** * Format the current date time to "yyyy-MM-dd HH:mm:ss" format string. * * @return the result */ public static final String formatDate2DateTimeStr() { return formatDate2DateTimeStr(new Date()); } /** * Format the given date time to "yyyy-MM-dd HH:mm:ss" format string. * * @param date the date you want to format * @return the result */ public static final String formatDate2DateTimeStr(Date date) { SimpleDateFormat s = getDateFormat(DATE_TIME_FORMAT); return s.format(date); } /** * Format the given date time to "yyyy-MM-dd HH:mm:ss" format string. * * @param date the date in milliseconds since January 1, 1970, 00:00:00 GMT. * @return the result */ public static final String formatDate2DateTimeStr(long date) { SimpleDateFormat s = getDateFormat(DATE_TIME_FORMAT); return s.format(new Date(date)); } public static final SimpleDateFormat getDateFormat(String format) { SimpleDateFormat s = new SimpleDateFormat(format); if (TIME_ZONE != null) { s.setTimeZone(TIME_ZONE); } return s; } public static final void setTimeZone(TimeZone timeZone) { TIME_ZONE = timeZone; } }