Java Yesterday yesterday()

Description

yesterday

License

Open Source License

Declaration

public static Date yesterday() 

Method Source Code

//package com.java2s;
/*/*w  w w.j  a va  2  s  .  c om*/
 * #%L
 * Webstar Newsletter
 * %%
 * Copyright (C) 2013 Webstar Csoport Kft.
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import java.util.*;

public class Main {
    public static Date yesterday() {
        return startOfDay(addDays(getCurrentDate(), -1));
    }

    public static Date startOfDay(Date datum) {
        if (datum == null) {
            return null;
        }
        Calendar cal = new GregorianCalendar();
        cal.setTime(datum);
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);

        return cal.getTime();
    }

    public static Date addDays(Date eredeti, int mennyit) {
        return add(eredeti, Calendar.DAY_OF_YEAR, mennyit);
    }

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

    public static Date add(Date eredeti, int mihez, int mennyit) {
        if (eredeti == null) {
            return null;
        }
        Calendar cal = new GregorianCalendar();
        cal.setTime(eredeti);
        cal.add(mihez, mennyit);

        return cal.getTime();
    }
}

Related

1. yesterday()
2. yesterDay()
3. yesterday()
4. yesterday()
5. yesterday()
6. yesterday(Date date)
7. yesterday(int daybefore, String pattern)
8. yesterdayDate()
9. yesterdayDate3()