Here you can find the source of age(long creationDate)
public static String age(long creationDate)
//package com.java2s; /**/*from ww w .j ava2s . c om*/ * SonarLint for IntelliJ IDEA * Copyright (C) 2015 SonarSource * sonarlint@sonarsource.com * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 3 of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 */ import java.util.Date; import java.util.concurrent.TimeUnit; public class Main { public static String age(long creationDate) { Date date = new Date(creationDate); Date now = new Date(); long days = TimeUnit.MILLISECONDS.toDays(now.getTime() - date.getTime()); if (days > 0) { return pluralize(days, "day", "days"); } long hours = TimeUnit.MILLISECONDS.toHours(now.getTime() - date.getTime()); if (hours > 0) { return pluralize(hours, "hour", "hours"); } long minutes = TimeUnit.MILLISECONDS.toMinutes(now.getTime() - date.getTime()); if (minutes > 0) { return pluralize(minutes, "minute", "minutes"); } return "few seconds ago"; } private static String pluralize(long strictlyPositiveCount, String singular, String plural) { if (strictlyPositiveCount == 1) { return "1 " + singular + " ago"; } return strictlyPositiveCount + " " + plural + " ago"; } }