LocalDate minusMonths() method in Java with Examples
Last Updated :
24 Jul, 2019
The minusMonths() method of LocalDate class in Java is used to subtract the number of specified months from this LocalDate and return a copy of LocalDate.
This method subtracts the months field in the following steps:
- subtract the months from the month-of-year field.
- Check if the date after subtracting months is valid or not.
- If date is invalid then method adjust the day-of-month to the last valid day.
For example, 2018-07-31 minus one month gives date 2018-06-31 but this is invalid result, so the last valid day of the month, 2018-06-30, is returned.This instance is immutable and unaffected by this method call.
Syntax:
public LocalDate minusMonths(long monthsToSubtract)
Parameters: This method accepts a single parameter monthsToSubtract which represents the months to subtract, may be negative.
Return value: This method returns a LocalDate based on this date with the months subtracted, not null.
Exception: This method throws DateTimeException if the result exceeds the supported date range.
Below programs illustrate the minusMonths() method:
Program 1:
import java.time.*;
public class GFG {
public static void main(String[] args)
{
LocalDate date
= LocalDate.parse( "2018-11-13" );
System.out.println( "LocalDate before"
+ " subtracting months: " + date);
LocalDate returnvalue
= date.minusMonths( 15 );
System.out.println( "LocalDate after "
+ " subtracting months: " + returnvalue);
}
}
|
Output:
LocalDate before subtracting months: 2018-11-13
LocalDate after subtracting months: 2017-08-13
Program 2:
import java.time.*;
public class GFG {
public static void main(String[] args)
{
LocalDate date
= LocalDate.parse( "2018-12-31" );
System.out.println( "LocalDate before"
+ " subtracting months: " + date);
LocalDate returnvalue
= date.minusMonths( 3 );
System.out.println( "LocalDate after "
+ " subtracting months: " + returnvalue);
}
}
|
Output:
LocalDate before subtracting months: 2018-12-31
LocalDate after subtracting months: 2018-09-30
References:
https://docs.oracle.com/javase/10/docs/api/java/time/LocalDate.html#minusMonths(long)
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