Java tutorial
//package com.java2s; /******************************************************************************* * Copyright 2012 The Regents of the University of California * * 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; public class Main { public static Date getMidnight(Date date) { Calendar day = Calendar.getInstance(); day.setTime(date); day.set(Calendar.HOUR_OF_DAY, 0); day.set(Calendar.MINUTE, 0); day.set(Calendar.SECOND, 0); day.set(Calendar.MILLISECOND, 0); day.add(Calendar.DAY_OF_MONTH, 0); return day.getTime(); } }