The adjustInto() method of java.time.Month ENUM is an in-built function in Java which takes a Temporal object specifying a date and returns a new Temporal object of the same observable type as the input with the month replaced with this month-of-year.
Method Declaration:
public Temporal adjustInto(Temporal temporal)
Syntax:
Temporal newLocalDate = Month.ANYMONTH.adjustInto(Temporal temporal)
Parameters: This method takes temporal as parameter where:
- temporal – is the specified date to be adjusted.
- ANYMONTH – is the specified month to which the date is to be adjusted, e.g., JANUARY, FEBRUARY, etc.
- newLocalDate – is the modified date.
Return Value: The function returns an adjusted Temporal object which is the date adjusted according to specified Month.
Exceptions:
- DateTimeException: This method throws this exception if it is not possible to make the adjustment.
- ArithmeticException: This exception is thrown if numeric overflow occurs.
Below programs illustrate the above method:
Program 1:
import java.time.*;import java.time.Month;import java.time.temporal.Temporal; class DayOfWeekExample { public static void main(String[] args) { // Set a Local Date whose month is found LocalDate localDate1 = LocalDate.of(1947, Month.AUGUST, 15); // Find the month from the Local Date Month monthOfYear1 = Month.from(localDate1); // Printing the Local Date System.out.println(localDate1 + " which is " + monthOfYear1.name()); // Adjust the month to JANUARY from AUGUST Temporal localDate2 = Month.JANUARY .adjustInto(localDate1); // Find the day from the new Local date Month monthOfYear2 = Month.from(localDate2); // Printing the new Local Date System.out.println(localDate2 + " which is " + monthOfYear2.name()); }} |
Output:
1947-08-15 which is AUGUST 1947-01-15 which is JANUARY
Program 2:
import java.time.*;import java.time.Month;import java.time.temporal.Temporal; class DayOfWeekExample { public static void main(String[] args) { // Set a Local Date whose month is found LocalDate localDate1 = LocalDate.of(2019, Month.MARCH, 18); // Find the month from the Local Date Month monthOfYear1 = Month.from(localDate1); // Printing the Local Date System.out.println(localDate1 + " which is " + monthOfYear1.name()); // Adjust the month to December from March Temporal localDate2 = Month.DECEMBER .adjustInto(localDate1); // Find the day from the new Local date Month monthOfYear2 = Month.from(localDate2); // Printing the new Local Date System.out.println(localDate2 + " which is " + monthOfYear2.name()); }} |
Output:
2019-03-18 which is MARCH 2019-12-18 which is DECEMBER