Here you can find the source of getCurrentDateString()
public static String getCurrentDateString()
//package com.java2s; /*/*from w ww. j a v a 2 s . com*/ Copyright 2015 Google Inc. 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. */ import java.text.DateFormat; import java.util.Calendar; import java.util.Date; import com.google.common.base.Preconditions; public class Main { /** * Returns the current date in string form. * * @return A string that contains the current date. */ public static String getCurrentDateString() { return formatDateTime(Calendar.getInstance().getTime()); } /** * Formats a date string using the currently selected locale. * * @param date The date to format. * * @return The data string. */ public static String formatDateTime(final Date date) { Preconditions.checkNotNull(date, "Error: Date argument can't be null."); return DateFormat.getDateTimeInstance().format(date); } }