Java Date Equal sameDate(Date date1, Date date2)

Description

Checks if the two Dates is for the same date

License

Apache License

Parameter

Parameter	Description
date1	the first date
date2	the second date

Return

if the two Dates is for the same date

Declaration

public static boolean sameDate(Date date1, Date date2) 

Method Source Code

//package com.java2s;
/* Copyright (c) 2011 Danish Maritime Authority.
 *
 * 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  ww w  .  ja va  2 s  .  c om
 */

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

public class Main {
    /**
     * Checks if the two Dates is for the same date
     * @param date1 the first date
     * @param date2 the second date
     * @return if the two Dates is for the same date
     */
    public static boolean sameDate(Date date1, Date date2) {
        if (date1 == null || date2 == null) {
            return false;
        }
        return resetTime(date1).getTime() == resetTime(date2).getTime();
    }

    /**
     * Resets the time part of the date to 0:0:0
     * @param cal the date to reset
     * @return the reset date
     */
    public static Calendar resetTime(Calendar cal) {
        if (cal != null) {
            cal.set(Calendar.HOUR_OF_DAY, 0); // set hour to midnight
            cal.set(Calendar.MINUTE, 0); // set minute in hour
            cal.set(Calendar.SECOND, 0); // set second in minute
            cal.set(Calendar.MILLISECOND, 0); // set millis in second
        }
        return cal;
    }

    /**
     * Resets the time part of the date to 0:0:0
     * @param date the date to reset
     * @return the reset date
     */
    public static Date resetTime(Date date) {
        if (date != null) {
            Calendar cal = Calendar.getInstance(); // get calendar instance
            cal.setTime(date); // set cal to date
            date = resetTime(cal).getTime();
        }
        return date;
    }
}

Related

1. isSameDate(Date date1, Date date2)
2. isSameDate(Date pathDate, Date now)
3. isSameDate(long var0, long var2)
4. monthEquals(Date current, Date compare)
5. nowInDateEquals(Date now, Date d1, Date d2)
6. sameDate(Date date1, Date date2)
7. yearMonthsEqual(final Date firstDate, final Date secondDate)