Here you can find the source of sameDay(Date date1, Date date2)
public static boolean sameDay(Date date1, Date date2)
//package com.java2s; /*//from w w w .ja v a 2 s. com * Aipo is a groupware program developed by Aimluck,Inc. * Copyright (C) 2004-2011 Aimluck,Inc. * http://www.aipo.com * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.util.Calendar; import java.util.Date; public class Main { public static boolean sameDay(Date date1, Date date2) { Calendar cal1 = Calendar.getInstance(); Calendar cal2 = Calendar.getInstance(); cal1.setTime(date1); cal2.setTime(date2); int date1Year = cal1.get(Calendar.YEAR); int date1Month = cal1.get(Calendar.MONTH) + 1; int date1Day = cal1.get(Calendar.DATE); int date2Year = cal2.get(Calendar.YEAR); int date2Month = cal2.get(Calendar.MONTH) + 1; int date2Day = cal2.get(Calendar.DATE); if (date1Year == date2Year && date1Month == date2Month && date1Day == date2Day) { return true; } return false; } }