Here you can find the source of resetCalendarTime(Calendar calendar)
public static void resetCalendarTime(Calendar calendar)
//package com.java2s; /*/*from w ww .jav a 2 s.c om*/ * JStock - Free Stock Market Software * Copyright (C) 2013 Yan Cheng CHEOK <yccheok@yahoo.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 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, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ import java.util.*; public class Main { public static void resetCalendarTime(Calendar calendar) { final int year = calendar.get(Calendar.YEAR); final int month = calendar.get(Calendar.MONTH); final int date = calendar.get(Calendar.DATE); calendar.set(year, month, date, 0, 0, 0); // Reset milli second as well. calendar.set(Calendar.MILLISECOND, 0); } }