Java Date Compare by Day isSameDay(Date date1, Date date2)

Description

is Same Day

License

Open Source License

Declaration

public static boolean isSameDay(Date date1, Date date2) 

Method Source Code

//package com.java2s;
/** Copyright (c) 2013 MoMo, yuanhb@fusionskye.com All Rights Reserved.
 *
 *  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./*from w  w w.  j  a  va 2s. c  o  m*/
 *
 * Project Name : Tools
 * Package Name : net.yuanmomo.tools.time
 * Created on   : Jun 24, 20131:47:23 PM
 * File Name    : TimeUtil.java
 *
 * Author       : yuanmomo
 * Blog         : yuanmomo.net
 * Company      : ??????????????????????  
 */

import java.util.Calendar;
import java.util.Date;

public class Main {
    public static boolean isSameDay(Date date1, Date date2) {
        if (date1 == null && date2 == null) {
            return true;
        }
        if (date1 == null || date2 == null) {
            return false;
        }

        Calendar cal1 = getCalendar(getDate(date1));
        Calendar cal2 = getCalendar(getDate(date2));
        if (cal1 == null && cal2 == null) {
            return true;
        }
        if (cal1 != null && cal1.compareTo(cal2) == 0) {
            return true;
        }
        return false;
    }

    public static Calendar getCalendar(Date date) {
        if (date != null) {
            Calendar c = Calendar.getInstance();
            c.setTime(date);
            return c;
        }
        return null;
    }

    public static Date getDate(Date date) {
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.set(Calendar.HOUR_OF_DAY, 0);
        c.set(Calendar.MINUTE, 0);
        c.set(Calendar.SECOND, 0);
        c.set(Calendar.MILLISECOND, 0);
        return c.getTime();
    }

    public static Date getDate() {
        return getCurrentDate();
    }

    public static Date getCurrentDate() {
        Calendar c = Calendar.getInstance();
        c.set(Calendar.HOUR_OF_DAY, 0);
        c.set(Calendar.MINUTE, 0);
        c.set(Calendar.SECOND, 0);
        c.set(Calendar.MILLISECOND, 0);
        return c.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)
6. isSameDay(Date date1, Date date2)
7. isSameDay(Date date1, Date date2)
8. isSameDay(Date day1, Date day2)
9. isSameDay(Date lastUpgradeTime)