Java tutorial
//package com.java2s; /* * Copyright 2011 Invient (www.invient.com) * * 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.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; public class Main { /** * Returns milliseconds of the date argument dt excluding time. * * @param dt * @return */ public static long getDate(Date dt) { return getDate(dt, false); } /** * Returns milliseconds of the date argument dt. If the argument * isIncludeTime is false then the returned milliseconds does not include * time. * * @param dt * @param isIncludeTime * @return */ private static long getDate(Date dt, boolean isIncludeTime) { Calendar cal = GregorianCalendar.getInstance(); cal.setTime(dt); if (!isIncludeTime) { cal.set(Calendar.HOUR, 0); cal.set(Calendar.MINUTE, 0); cal.set(Calendar.SECOND, 0); cal.set(Calendar.MILLISECOND, 0); } return cal.getTimeInMillis(); } }