Here you can find the source of formatDate(final Date date)
public static String formatDate(final Date date)
//package com.java2s; /*/*from w w w . ja va2 s. c om*/ 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.Date; import java.util.Locale; import com.google.common.base.Preconditions; public class Main { public static String formatDate(final Date date) { Preconditions.checkNotNull(date, "Error: Date argument can't be null."); return DateFormat.getDateInstance().format(date); } /** * Formats a date string regarding the given locale. * * @param date The date to format. * @param type Defines the display type of month * @param locale The given locale. * * @return The data string. */ public static String formatDate(final Date date, final int type, final Locale locale) { Preconditions.checkNotNull(date, "Error: Date argument can't be null."); Preconditions.checkNotNull(locale, "Error: Locale argument can't be null."); final String s = String.format("%s %s", DateFormat.getDateInstance(type, locale).format(date), DateFormat.getTimeInstance(type, locale).format(date)); return s; } }