Java Date Time - LocalDate Example

Example

The following code shows how to create today, tomorrow and yesterday date.

import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
// w w  w.  ja v  a 2 s  .  co m
public class Main {
  public static void main(String... args) {
    LocalDate today = LocalDate.now();
    LocalDate tomorrow = today.plus(1, ChronoUnit.DAYS);
    LocalDate yesterday = tomorrow.minusDays(2);

    System.out.println(today);
    System.out.println(tomorrow);
    System.out.println(yesterday);

  }
}

The code above generates the following result.

Example 2

The following code shows how to parse a string to LocalDate using Medium German format.

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.util.Locale;
//from   w  w  w.  j  a v  a  2  s.co m
public class Main {
  public static void main(String... args) {
    DateTimeFormatter germanFormatter = DateTimeFormatter.ofLocalizedDate(
        FormatStyle.MEDIUM).withLocale(Locale.GERMAN);

    LocalDate xmas = LocalDate.parse("24.12.2014", germanFormatter);
    System.out.println(xmas); 

  }
}

The code above generates the following result.

Example 3

The following code shows how to get the date of the next pay day.

import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.Month;
import java.time.Year;
import java.time.format.DateTimeFormatter;
import java.time.temporal.Temporal;
import java.time.temporal.TemporalAdjuster;
import java.time.temporal.TemporalAdjusters;
// w  ww  .j a v a2s .  co  m
public class Main {
  public static void main(String[] args) {
    Month month = null;
    LocalDate date = null;
    DateTimeFormatter format;
    String out = null;

    month = Month.valueOf("May".toUpperCase());
    date = Year.now().atMonth(month).atDay(12);

    LocalDate nextPayday = date.with(new PaydayAdjuster());

    format = DateTimeFormatter.ofPattern("yyyy MMM d");
    out = date.format(format);
    System.out.printf("Given the date:  %s%n", out);
    out = nextPayday.format(format);
    System.out.printf("the next payday: %s%n", out);
  }
}
/**
 * This temporal adjuster assumes that payday occurs on the 15th
 * and the last day of each month. However, if either of those
 * days lands on a weekend, then the previous Friday is used.
 */
 class PaydayAdjuster implements TemporalAdjuster {
    
    /**
     * The adjustInto method accepts a Temporal instance
     * and returns an adjusted LocalDate. If the passed in
     * parameter is not a LocalDate, then a DateTimeException is thrown.
     */
    public Temporal adjustInto(Temporal input) {
        LocalDate date = LocalDate.from(input);
        int day;
        if (date.getDayOfMonth() < 15) {
            day = 15;
        } else {
            day = date.with(TemporalAdjusters.lastDayOfMonth()).getDayOfMonth();
        }
        date = date.withDayOfMonth(day);
        if (date.getDayOfWeek() == DayOfWeek.SATURDAY ||
            date.getDayOfWeek() == DayOfWeek.SUNDAY) {
            date = date.with(TemporalAdjusters.previous(DayOfWeek.FRIDAY));
        }

        return input.with(date);
    }
}
 /*
  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  *   - Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  *
  *   - Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  *   - Neither the name of Oracle or the names of its
  *     contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */

The code above generates the following result.

Java Date Time - LocalDate Example

Example

Example 2

Example 3

Field

Method