LocalDateTime plusSeconds() method in Java with Examples

The plusSeconds() method of LocalDateTime class is used to return a copy of this date-time with the specified seconds added.

Syntax: 

public LocalDateTime plusSeconds(long seconds)

Parameter: It accepts a single parameter seconds which specifies the seconds to add which may be negative.

Return Value: This method returns a LocalDateTime based on this date-time with the seconds added.

Exceptions: The program throws a DateTimeException which is thrown if the result exceeds the supported seconds range. 

Below programs illustrate the LocalDateTime.plusSeconds() method in Java:

Program 1:  

Java

// Program to illustrate the plusSeconds() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        LocalDateTime dt1
            = LocalDateTime
                  .parse("2018-01-11T10:15:30");

        System.out.println("LocalDateTime with 15 seconds added: "
                           + dt1.plusSeconds(15));
    }
}

Output:

LocalDateTime with 15 seconds added: 2018-01-11T10:15:45

Program 2: 

Java

// Program to illustrate the plusSeconds() method

import java.util.*;
import java.time.*;

public class GfG {
    public static void main(String[] args)
    {
        LocalDateTime dt1
            = LocalDateTime
                  .parse("2018-01-11T08:15:30");

        System.out.println("LocalDateTime with -2 seconds added: "
                           + dt1.plusSeconds(-2));
    }
}

Output:

LocalDateTime with -2 seconds added: 2018-01-11T08:15:28

Reference: https://docs.oracle.com/javase/10/docs/api/java/time/LocalDateTime.html#plusSeconds(long)