Duration of(long, TemporalUnit) method in Java with Examples

The of(long, TemporalUnit) method of Duration Class in java.time package is used to get a duration of the amount passed as the first parameter in the TemporalUnit passed as the second parameter. The TemporalUnit can be DAYS, HOURS, etc. Syntax:

public static Duration of(long amount, TemporalUnit unit)

Parameters: This method accepts two parameters:

• amount: which is the number of Seconds. It can be positive or negative.
• unit: which is the TemporalUnit in which the unit is to be specified.

Return Value: This method returns a Duration representing the time in specified unit format. Exception: This method throws following unit:

• ArithmeticException: if the input Seconds exceeds the capacity of Duration.
• DateTimeException: if the period unit has an estimated duration

Below examples illustrate the Duration.of() method: Example 1:

Java

// Java code to illustrate duration of() method

import java.time.*;
import java.time.temporal.*;

public class GFG {
    public static void main(String[] args)
    {

        // input amount of time
        long timeAmount = 5;

        // Duration using of() method
        Duration duration
            = Duration.of(timeAmount, ChronoUnit.DAYS);

        System.out.println(duration.getSeconds());
    }
}

Output:

432000

Example 2:

Java

// Java code to illustrate duration of() method

import java.time.*;
import java.time.temporal.*;

public class GFG {
    public static void main(String[] args)
    {

        // input amount of time
        long timeAmount = 5;

        // Duration using of() method
        Duration duration
            = Duration.of(timeAmount, ChronoUnit.HOURS);

        System.out.println(duration.getSeconds());
    }
}

Output:

18000

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Duration.html#of-long-java.time.temporal.TemporalUnit-