The plusSeconds(long) method of Duration Class in java.time package is used to get an immutable copy of this duration with the specified number of seconds added, passed as the parameter.
Syntax:
public Duration plusSeconds(long numberOfSeconds)
Parameters: This method accepts a parameter numberOfSeconds which is the number of seconds to be added. It can be positive or negative but not null.
Return Value: This method returns a Duration which is an immutable copy of the existing duration with the parameter amount of seconds added to it.
Exception: This method throws ArithmeticException if numeric overflow occurs.
Below examples illustrate the Duration.plusSeconds() method:
Example 1:
// Java code to illustrate plusSeconds() method  import java.time.Duration;  public class GFG {    public static void main(String[] args)    {          // Duration 1 using parse() method        Duration duration1            = Duration.parse("P2DT3H4M");          // Get the duration added        // using plusSeconds() method        System.out.println(duration1.plusSeconds(2));    }} |
Output:
PT51H4M2S
Example 2:
// Java code to illustrate plusSeconds() method  import java.time.Duration;  public class GFG {    public static void main(String[] args)    {          // Duration 1 using parse() method        Duration duration1            = Duration.parse("P0DT0H4M");          // Get the duration added        // using plusSeconds() method        System.out.println(duration1.plusSeconds(5));    }} |
Output:
PT4M5S
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Duration.html#plusSeconds-long-
