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Java Date Time - LocalDate.withDayOfMonth() Examples

Java Date Time Java Java API 

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Class:

java.time.LocalDate

java.lang.Objectjava.lang.Objectjava.time.LocalDatejava.time.LocalDatejava.time.temporal.TemporalTemporaljava.time.temporal.TemporalAdjusterTemporalAdjusterjava.time.chrono.ChronoLocalDateChronoLocalDatejava.io.SerializableSerializableLogicBig

Method:

public LocalDate withDayOfMonth(int dayOfMonth)

This method returns a new copy of this local date, with day-of-month field replaced with the provided 'dayOfMonth' value.

If the provided dayOfMonth is invalid, an DateTimeException is thrown.


Examples


package com.logicbig.example.localdate;

import java.time.LocalDate;

public class WithDayOfMonthExample {

    public static void main (String... args) {
        LocalDate d = LocalDate.of(2016, 10, 20);
        LocalDate d2 = d.withDayOfMonth(20);
        System.out.println(d2);
    }
}

Output

2016-10-20




Using an invalid value for day will throw exception. 

package com.logicbig.example.localdate;

import java.time.LocalDate;

public class WithDayOfMonthExample2 {

    public static void main (String... args) {
        LocalDate d = LocalDate.of(2016, 10, 20);
        LocalDate d2 = d.withDayOfMonth(32);
        System.out.println(d2);
    }
}

Output

Caused by: java.time.DateTimeException: Invalid value for DayOfMonth (valid values 1 - 28/31): 32
	at java.time.temporal.ValueRange.checkValidValue(ValueRange.java:311)
	at java.time.temporal.ChronoField.checkValidValue(ChronoField.java:703)
	at java.time.LocalDate.of(LocalDate.java:268)
	at java.time.LocalDate.withDayOfMonth(LocalDate.java:1099)
	at com.logicbig.example.localdate.WithDayOfMonthExample2.main(WithDayOfMonthExample2.java:15)
	... 6 more

See Also