Java Date Compare by Day isSameDay(Date a, Date b)

Description

is Same Day

License

Apache License

Declaration

public static boolean isSameDay(Date a, Date b) 

Method Source Code

//package com.java2s;
/*//  w w  w.ja  v a2s.c  o  m
 * Copyright 2012 Evgeny Dolganov (evgenij.dolganov@gmail.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;

public class Main {
    public static boolean isSameDay(Date a, Date b) {
        Date normDateA = dateStart(a);
        Date normDateB = dateStart(b);
        return normDateA.equals(normDateB);
    }

    public static Date dateStart(Date date) {
        if (date == null) {
            return null;
        }

        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.set(Calendar.HOUR_OF_DAY, 0);
        calendar.set(Calendar.MINUTE, 0);
        calendar.set(Calendar.SECOND, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return calendar.getTime();
    }

    public static long dateStart(long time) {
        return dateStart(new Date(time)).getTime();
    }
}

Related

1. isSameDay(Date a, Date b)
2. isSameDay(Date d1, Date d2)
3. isSameDay(Date d1, Date d2)
4. isSameDay(Date d1, Date d2)
5. isSameDay(Date date)