Here you can find the source of getStartAndEndOfDay(Calendar calendar)
public static Calendar[] getStartAndEndOfDay(Calendar calendar)
//package com.java2s; /*/* www . j ava 2 s. c o m*/ * Copyright (C) 2007-2010 Castafiore * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see<http://www.gnu.org/licenses/>. */ import java.util.Calendar; public class Main { public static Calendar[] getStartAndEndOfDay(Calendar calendar) { Calendar startDate = Calendar.getInstance(); startDate.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DATE), 0, 0); Calendar endDate = Calendar.getInstance(); endDate.set(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DATE), 23, 59); return new Calendar[] { startDate, endDate }; } }