Java Date Equal dateEquals(Date dtFirst, Date dtSecond)

Description

Check if two dates equals regardless of the time.

License

Open Source License

Parameter

Parameter	Description
dtFirst	- first date to compare, can be null
dtSecond	- second date to compare, can be null

Return

boolean - true if two dates equals regardless of what the time is

Declaration

public static boolean dateEquals(Date dtFirst, Date dtSecond) 

Method Source Code

//package com.java2s;
/*/*from w ww .ja  v a  2 s .  com*/
 * Copyright (C) 2003 - 2013 OpenSubsystems.com/net/org and its owners. All rights reserved.
 * 
 * This file is part of OpenSubsystems.
 *
 * OpenSubsystems is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>. 
 */

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

public class Main {
    /**
     * Check if two dates equals regardless of the time. Two null dates are equal. 
     * Null and not null dates are not equal.
     * 
     * @param  dtFirst - first date to compare, can be null
     * @param  dtSecond - second date to compare, can be null 
     * @return boolean - true if two dates equals regardless of what the time is 
     */
    public static boolean dateEquals(Date dtFirst, Date dtSecond) {
        boolean bReturn;

        // If they are the same object, they are equals
        bReturn = (dtFirst == dtSecond);
        if (!bReturn) {
            if (dtFirst == null) {
                // Two null dates are the same
                bReturn = (dtSecond == null);
            } else {
                if (dtSecond != null) {
                    Calendar compCalendar;
                    int iEra;
                    int iYear;
                    int iMonth;
                    int iDay;

                    compCalendar = Calendar.getInstance();
                    compCalendar.setTime(dtFirst);
                    iEra = compCalendar.get(Calendar.ERA);
                    iYear = compCalendar.get(Calendar.YEAR);
                    iMonth = compCalendar.get(Calendar.MONTH);
                    iDay = compCalendar.get(Calendar.DATE);
                    compCalendar.setTime(dtSecond);

                    bReturn = ((iEra == compCalendar.get(Calendar.ERA))
                            && (iYear == compCalendar.get(Calendar.YEAR))
                            && (iMonth == compCalendar.get(Calendar.MONTH))
                            && (iDay == compCalendar.get(Calendar.DATE)));
                }
            }
        }

        return bReturn;
    }
}

Related

1. areEqual(Date date1, Date date2)
2. datesEqualToSecond(Date date1, Date date2)
3. equal(Date date, Date other)
4. equalDateByDay(Date date1, Date date2)
5. equalDates(Date first, Date second)