The from(TemporalUnit) method of Duration Class in java.time package is used to get a duration from the amount passed as the first parameter in the TemporalUnit. The TemporalUnit can be DAYS, HOURS, etc.
Syntax:
public static Duration from(TemporalUnit amount)
Parameters: This method accepts a parameter amount which is amount from which the Duration is to be found, passed as the TemporalUnit.
Return Value: This method returns a Duration representing the time of specified amount.
Exception: This method throws following unit:
- ArithmeticException: if numeric overflow occurs.
- DateTimeException: if unable to convert to a Duration
Below examples illustrate the Duration.from() method:
Example 1:
// Java code to illustrate from() method  import java.time.Duration;  public class GFG {    public static void main(String[] args)    {          // Get the amount        Duration duration = Duration.ofDays(5);          // Duration using from() method        Duration duration1 = Duration.from(duration);          System.out.println(duration1.getSeconds());    }} |
Output:
432000
Example 2:
// Java code to illustrate from() method  import java.time.Duration;  public class GFG {    public static void main(String[] args)    {          // Get the amount        Duration duration = Duration.ofHours(5);          // Duration using from() method        Duration duration1 = Duration.from(duration);          System.out.println(duration1.getSeconds());    }} |
Output:
18000
Reference: Oracle Doc
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