In ZonedDateTime class, there are two types of minus() method depending upon the parameters passed to it.
minus(long amountTosubtract, TemporalUnit unit)
minus() method of a ZonedDateTime class used to Returns a copy of this date-time with the specified amount of unit subtracted.If it is not possible to subtract the amount, because the unit is not supported or for some other reason, an exception is thrown.
Syntax:
public ZonedDateTime minus(long amountToSubtract,
TemporalUnit unit)
Parameters: This method accepts two parameters:
- amountToSubtract: which is the amount of the unit to subtract to the result, may be negative
- unit: which is the unit of the amount to subtract.
Return value: This method returns ZonedDateTime based on this date-time with the specified amount subtracted.
Exception: This method throws following Exceptions:
- DateTimeException: if the subtraction cannot be made,
- UnsupportedTemporalTypeException: if the unit is not supported.
- ArithmeticException: if numeric overflow occurs.
Below programs illustrate the minus() method:
Program 1:
Java
// Java program to demonstrate// ZonedDateTime.minus() methodimport java.time.*;import java.time.temporal.ChronoUnit;public class GFG { public static void main(String[] args) { // create a ZonedDateTime object ZonedDateTime zonedlt = ZonedDateTime .parse( "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]"); // subtract 30 Months to ZonedDateTime ZonedDateTime value = zonedlt.minus(30, ChronoUnit.MONTHS); // print result System.out.println("ZonedDateTime after" + " subtracting Months:\n " + value); }} |
ZonedDateTime after subtracting Months: 2016-06-06T19:21:12.123+05:30[Asia/Calcutta]
minus(TemporalAmount amountTosubtract)
minus() method of a ZonedDateTime class used to returns a copy of this date-time with the specified amount subtracted to date-time.The amount is typically Period or Duration but may be any other type implementing the TemporalAmount interface.
Syntax:
public ZonedDateTime minus(TemporalAmount amountTosubtract)
Parameters: This method accepts one single parameter amountTosubtract which is the amount to subtract, It should not be null.
Return value: This method returns ZonedDateTime based on this date-time with the subtraction made, not null
Exception: This method throws following Exceptions:
- DateTimeException: if the subtraction cannot be made</li
- ArithmeticException: if numeric overflow occurs
Below programs illustrate the minus() method:
Program 1:
Java
// Java program to demonstrate// ZonedDateTime.minus() methodimport java.time.*;public class GFG { public static void main(String[] args) { // create a ZonedDateTime object ZonedDateTime zonedlt = ZonedDateTime .parse( "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]"); // subtract 10 Days to ZonedDateTime ZonedDateTime value = zonedlt.minus(Period.ofDays(10)); // print result System.out.println("ZonedDateTime after" + " subtracting Days:\n " + value); }} |
ZonedDateTime after subtracting Days: 2018-11-26T19:21:12.123+05:30[Asia/Calcutta]
Reference:
- https://docs.oracle.com/javase/10/docs/api/java/time/ZonedDateTime.html#minus(java.time.temporal.TemporalAmount)
- https://docs.oracle.com/javase/10/docs/api/java/time/ZonedDateTime.html#minus(long, java.time.temporal.TemporalUnit)
