minusMonths() method of a ZonedDateTime class used to subtracts the number of months in this ZonedDateTime and return a copy of ZonedDateTime after subtraction. This instance is immutable and unaffected by this method call.
Syntax:
public ZonedDateTime minusMonths(long months)
Parameters: This method accepts a single parameter months which represents the months to subtract, It can be negative.
Return value: This method returns a ZonedDateTime based on this date-time with the months subtract, not null.
Exception: This method throws DateTimeException if the result exceeds the supported date range.
Below programs illustrate the minusMonths() method:
Program 1:
// Java program to demonstrate// ZonedDateTime.minusMonths() method  import java.time.*;  public class GFG {    public static void main(String[] args)    {          // create a ZonedDateTime object        ZonedDateTime zoneddatetime            = ZonedDateTime.parse(                "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");          // print instance        System.out.println("ZonedDateTime before"                           + " subtracting months: "                           + zoneddatetime);          // subtract 10 months        ZonedDateTime returnvalue            = zoneddatetime.minusMonths(10);          // print result        System.out.println("ZonedDateTime after "                           + " subtracting 10 months: "                           + returnvalue);    }} |
ZonedDateTime before subtracting months: 2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
ZonedDateTime after subtracting 10 months: 2018-02-06T19:21:12.123+05:30[Asia/Calcutta]
Program 2:
// Java program to demonstrate// ZonedDateTime.minusMonths() method  import java.time.*;  public class GFG {    public static void main(String[] args)    {          // create a ZonedDateTime object        ZonedDateTime zoneddatetime            = ZonedDateTime.parse(                "2018-10-25T23:12:31.123+02:00[Europe/Paris]");          // print instance        System.out.println("ZonedDateTime before"                           + " subtracting months: "                           + zoneddatetime);          // subtract 2 months        ZonedDateTime returnvalue            = zoneddatetime.minusMonths(2);          // print result        System.out.println("ZonedDateTime after "                           + " subtracting 2 months: "                           + returnvalue);    }} |
ZonedDateTime before subtracting months: 2018-10-25T23:12:31.123+02:00[Europe/Paris]
ZonedDateTime after subtracting 2 months: 2018-08-25T23:12:31.123+02:00[Europe/Paris]
Reference: https://docs.oracle.com/javase/10/docs/api/java/time/ZonedDateTime.html#minusMonths(long)
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