ChronoLocalDateTime adjustInto() method in Java with Examples

Last Updated : 30 May, 2019

The adjustInto() method of ChronoLocalDateTime interface in Java is used to adjusts the specified temporal object to have the same date as this object. Syntax:

default Temporal adjustInto(Temporal temporal)

Parameter: This method accepts a single parameter temporal which is the target object to be adjusted, and not specifically null. Return Value: It returns the adjusted object, not null. Exceptions: The function throws two exceptions as described below:

DateTimeException: the program throws this if it is unable to make the adjustment.
ArithmeticException: the program throws this if there is a numeric overflow.

Below programs illustrate the adjustInto() method of ChronoLocalDateTime in Java: Program 1:

Java

// Program to illustrate the adjustInto() method

import java.util.*;
import java.time.*;
import java.time.chrono.*;

public class GfG {
    public static void main(String[] args)
    {

        LocalDateTime date
            = LocalDateTime
                  .parse("2018-12-06T19:21:12");

        // prints the date
        System.out.println(date);

        // Parses the date
        ChronoLocalDateTime date1
            = LocalDateTime.now();

        // Uses the function to adjust the date
        date = (LocalDateTime)date1.adjustInto(date);

        // Prints the adjusted date
        System.out.println(date);
    }
}

Output:

2018-12-06T19:21:12
2019-05-14T09:39:37.953

Program 2: To illustrate Exception. The below program throws an exception as February is of 28 days and not 31 days.

Java

// Program to illustrate the adjustInto() method
// Exception Program

import java.util.*;
import java.time.*;
import java.time.chrono.*;

public class GfG {
    public static void main(String[] args)
    {
        try {

            LocalDateTime date
                = LocalDateTime
                      .parse("2018-12-06T19:21:12");

            // prints the date
            System.out.println(date);

            // Parses the date
            ChronoLocalDateTime date1
                = LocalDateTime.parse("2015-02-31");

            // Uses the function to adjust the date
            date = (LocalDateTime)date1.adjustInto(date);

            // Prints the adjusted date
            System.out.println(date);
        }
        catch (Exception e) {
            System.out.println(e);
        }
    }
}

Output:

2018-12-06T19:21:12
java.time.format.DateTimeParseException:
 Text '2015-02-31' could not be parsed at index 10

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoLocalDateTime.html#adjustInto-java.time.temporal.Temporal-

ChronoLocalDateTime adjustInto() method in Java with Examples

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ChronoLocalDateTime adjustInto() method in Java with Examples

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