The with(TemporalAdjuster adjuster) method of the ChronoLocalDateTime interface is used to adjust this date-time using TemporalAdjuster and after adjustment returns the copy of adjusted date-time. The adjustment takes place using the specified adjuster strategy object. This instance of ChronoLocalDateTime is immutable and unaffected by this method call. A simple adjuster uses to set one of the fields, such as the year field where A more complex adjuster might set the time to the last day of the year.
Syntax:
default ChronoLocalDateTime with(TemporalAdjuster adjuster)
Parameters: This method accepts adjuster as parameter which is the adjuster to use.
Return value: This method returns a ChronoLocalDateTime based on this with the adjustment made.
Exception: This method throws following Exceptions:
- DateTimeException – if the adjustment cannot be made.
- ArithmeticException – if numeric overflow occurs.
Below programs illustrate the with() method:
Program 1:
// Java program to demonstrate // ChronoLocalDateTime.with() method import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
public class GFG {
public static void main(String[] args)
{
// create ChronoLocalDateTime object
ChronoLocalDateTime time
= LocalDateTime
.parse( "2019-12-31T19:15:30" );
// print instance
System.out.println( "ChronoLocalDateTime before"
+ " adjustment: "
+ time);
// apply with method of ChronoLocalDateTime
ChronoLocalDateTime updatedlocal
= time.with(Month.OCTOBER)
.with(TemporalAdjusters
.firstDayOfMonth());
// print instance
System.out.println( "ChronoLocalDateTime after"
+ " adjustment: "
+ updatedlocal);
}
} |
ChronoLocalDateTime before adjustment: 2019-12-31T19:15:30 ChronoLocalDateTime after adjustment: 2019-10-01T19:15:30
Program 2:
// Java program to demonstrate // ChronoLocalDateTime.with() method import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
public class GFG {
public static void main(String[] args)
{
// create ChronoLocalDateTime object
ChronoLocalDateTime time
= LocalDateTime
.parse( "2018-10-25T23:12:31.123" );
// print instance
System.out.println( "ChronoLocalDateTime before"
+ " adjustment: "
+ time);
// apply with method of ChronoLocalDateTime
ChronoLocalDateTime updatedlocal
= time.with(Month.JANUARY)
.with(TemporalAdjusters
.firstDayOfMonth());
// print instance
System.out.println( "ChronoLocalDateTime after"
+ " adjustment: "
+ updatedlocal);
}
} |
ChronoLocalDateTime before adjustment: 2018-10-25T23:12:31.123 ChronoLocalDateTime after adjustment: 2018-01-01T23:12:31.123