Java Date Time Java Java API
Class:
java.time.LocalDate
Methods:
public LocalDate with(TemporalAdjuster adjuster)
This method returns a new LocalDate instance, with adjusted fields per provided adjuster.
public LocalDate with(TemporalField field,
long newValue)
This method returns a new LocalDate instance, with adjusted fields per provided newValue and the target field.
Examples
package com.logicbig.example.localdate;
import java.time.LocalDate; import java.time.temporal.Temporal; import java.time.temporal.TemporalAdjusters;
public class WithExample {
public static void main (String... args) { LocalDate a = LocalDate.of(2000, 2, 20); LocalDate b = a.with(TemporalAdjusters.lastDayOfMonth()); System.out.println(b);
//alternatively Temporal t = TemporalAdjusters.lastDayOfMonth() .adjustInto(a); System.out.println(t); } }
Output2000-02-29 2000-02-29
package com.logicbig.example.localdate;
import java.time.LocalDate; import java.time.temporal.ChronoField;
public class WithExample2 {
public static void main (String... args) { LocalDate a = LocalDate.of(2016, 1, 1); System.out.printf("Original date: %s%n", a);
LocalDate b = a.with(ChronoField.DAY_OF_WEEK, 1); System.out.printf("Ist DAY_OF_WEEK: %s%n", b);
b = a.with(ChronoField.DAY_OF_MONTH, 25); System.out.printf("25th DAY_OF_MONTH: %s%n", b);
b = a.with(ChronoField.DAY_OF_YEAR, 100); System.out.printf("100th DAY_OF_YEAR: %s%n", b);
b = a.with(ChronoField.EPOCH_DAY, 200); System.out.printf("200th EPOCH_DAY: %s%n", b);
b = a.with(ChronoField.MONTH_OF_YEAR, 10); System.out.printf("10th MONTH_OF_YEAR: %s%n", b);
b = a.with(ChronoField.PROLEPTIC_MONTH, 1000); System.out.printf("1000th PROLEPTIC_MONTH: %s%n", b);
b = a.with(ChronoField.YEAR_OF_ERA, 500); System.out.printf("500th YEAR_OF_ERA: %s%n", b);
b = a.with(ChronoField.YEAR, 2000); System.out.printf("2000th YEAR: %s%n", b);
b = a.with(ChronoField.ERA, 1); System.out.printf("1s ERA: %s%n", b); } }
OutputOriginal date: 2016-01-01 Ist DAY_OF_WEEK: 2015-12-28 25th DAY_OF_MONTH: 2016-01-25 100th DAY_OF_YEAR: 2016-04-09 200th EPOCH_DAY: 1970-07-20 10th MONTH_OF_YEAR: 2016-10-01 1000th PROLEPTIC_MONTH: 0083-05-01 500th YEAR_OF_ERA: 0500-01-01 2000th YEAR: 2000-01-01 1s ERA: 2016-01-01
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