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ChronoLocalDateTime plus(TemporalAmount) method in Java with Examples

The plus() method of a ChronoLocalDateTime interface is used to return a copy of this ChronoLocalDateTime with the specified amount added to date-time. The amount is typically Period or Duration but may be any other type implementing the TemporalAmount interface.
 

Syntax:  

default ChronoLocalDateTime plus(TemporalAmount amountToadd)

Parameters: This method accepts one single parameter amountToadd which is the amount to add, It should not be null.
Return value: This method returns ChronoLocalDateTime based on this date-time with the addition made, not null.
Exception: 
This method throws following Exceptions:

  • DateTimeException – if the addition cannot be made
  • ArithmeticException – if numeric overflow occurs

Below programs illustrate the plus() method: 
Program 1:  

Java




// Java program to demonstrate
// ChronoLocalDateTime.plus() method
 
import java.time.*;
import java.time.chrono.*;
 
public class GFG {
    public static void main(String[] args)
    {
 
        // Get the ChronoLocalDateTime instance
        ChronoLocalDateTime ldt
            = LocalDateTime
                  .parse("2019-12-31T19:15:30");
 
        // Get the String representation of this ChronoLocalDateTime
        System.out.println("Original ChronoLocalDateTime: "
                           + ldt.toString());
 
        // add 10 Days to ChronoLocalDateTime
        ChronoLocalDateTime value
            = ldt.plus(Period.ofDays(10));
 
        // print result
        System.out.println("ChronoLocalDateTime after adding Days: "
                           + value);
    }
}


Output: 

Original ChronoLocalDateTime: 2019-12-31T19:15:30
ChronoLocalDateTime after adding Days: 2020-01-10T19:15:30

 

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/ChronoLocalDateTime.html#plus-java.time.temporal.TemporalAmount-

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