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LocalDateTime minus() method in Java
An immutable copy of a LocalDateTime where the required duration is subtracted from it can be obtained using the minus() method in the LocalDateTime class in Java. This method requires two parameters i.e. the duration to be subtracted and the TemporalUnit of the duration. Also, it returns the LocalDateTime object with the required duration subtracted from it.
A program that demonstrates this is given as follows −
Example
import java.time.*; import java.time.temporal.*; public class Demo { public static void main(String[] args) { LocalDateTime ldt = LocalDateTime.now(); System.out.println("The LocalDateTime is: " + ldt); System.out.println("The LocalDateTime after subtracting 3 days is: " + ldt.minus(3, ChronoUnit.DAYS)); } }
Output
The LocalDateTime is: 2019-02-18T06:47:21.535 The LocalDateTime after subtracting 3 days is: 2019-02-15T06:47:21.535
Now let us understand the above program.
First the LocalDateTime is displayed. Then an immutable copy of the LocalDateTime where 3 days are subtracted from it is obtained using the minus() method and this is displayed. A code snippet that demonstrates this is as follows −
LocalDateTime ldt = LocalDateTime.now(); System.out.println("The LocalDateTime is: " + ldt); System.out.println("The LocalDateTime after subtracting 3 days is: " + ldt.minus(3, ChronoUnit.DAYS));
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