The plus(Duration) method of Duration Class in java.time package is used to get an immutable copy of this duration with the specified duration added, passed as the parameter.
Syntax:
public Duration plus(Duration duration)
Parameters: This method accepts a parameter duration which is the duration 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 duration added to it.
Exception: This method throws ArithmeticException if numeric overflow occurs.
Below examples illustrate the Duration.plus() method:
Example 1:
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
Duration duration1
= Duration.parse( "P2DT3H4M" );
Duration duration2
= Duration.ofHours( 5 );
System.out.println(duration1
.plus(duration2));
}
}
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Example 2:
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
Duration duration1
= Duration.parse( "P0DT0H4M" );
Duration duration2
= Duration.ofDays( 5 );
System.out.println(duration1
.plus(duration2));
}
}
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Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Duration.html#plus-java.time.Duration-