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TemporalAdjusters firstDayOfNextMonth() method in Java with Examples

  • Last Updated : 27 Mar, 2020

The firstDayOfNextMonth() method of a TemporalAdjusters class is used to return the “first day of next month” TemporalAdjuster object, which returns a new Date object set to the first day of the next month.

Syntax:

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public static TemporalAdjuster firstDayOfNextMonth()

Parameters: This method accepts nothing.

Return value: This method returns the first day of next month adjuster, not null.



Below programs illustrate the TemporalAdjusters.firstDayOfNextMonth() method:
Program 1:




// Java program to demonstrate
// TemporalAdjusters.firstDayOfNextMonth()
  
import java.time.LocalDate;
import java.time.temporal.TemporalAdjuster;
import java.time.temporal.TemporalAdjusters;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // get TemporalAdjuster with first day
        // of next month adjuster
        TemporalAdjuster temporalAdjuster
            = TemporalAdjusters.firstDayOfNextMonth();
  
        // using adjuster for local date time
        LocalDate localDate
            = LocalDate.of(2020, 05, 11);
        LocalDate firstDayOfNextMonth
            = localDate.with(temporalAdjuster);
  
        // print
        System.out.println("First day of next "
                           + "month for localdate "
                           + localDate + ": "
                           + firstDayOfNextMonth);
    }
}
Output:
First day of next month for localdate 2020-05-11: 2020-06-01

Program 2:




// Java program to demonstrate
// TemporalAdjusters.firstDayOfNextMonth() method
  
import java.time.LocalDate;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // get TemporalAdjuster with first day
        // of next month adjuster
        TemporalAdjuster temporalAdjuster
            = TemporalAdjusters
                  .firstDayOfNextMonth();
  
        // using adjuster for local date-time
        LocalDate localDate
            = LocalDate.of(2010, 12, 29);
        LocalDate firstDayOfNextMonth
            = localDate.with(temporalAdjuster);
  
        // print
        System.out.println(
            "First day of next "
            + "month for localdate "
            + localDate + ": "
            + firstDayOfNextMonth);
    }
}
Output:
First day of next month for localdate 2010-12-29: 2011-01-01

References: https://docs.oracle.com/javase/10/docs/api/java/time/format/TemporalAdjusters.html




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