The getUnits() method of Duration Class in java.time package is used to get the list of units that are supported by this duration.
Syntax:
public List<TemporalUnit> getUnits()
Parameters: This method do not accepts any parameter.
Return Value: This method returns a list of units that are supported by this duration. These are SECONDS and NANOS.
Below examples illustrate the Duration.getUnits() method:
Example 1:
// Java code to illustrate getUnits() method  import java.time.Duration;import java.time.temporal.*;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // Get the text        String time = "P2DT3H4M";          // Duration using parse() method        Duration duration            = Duration.parse(time);          // Duration using getUnits() method        List<TemporalUnit>            listOfUnits = duration.getUnits();          System.out.println("List of Units: "                           + listOfUnits);    }} |
Output:
List of Units: [Seconds, Nanos]
Example 2:
// Java code to illustrate getUnits() method  import java.time.Duration;import java.time.temporal.*;import java.util.*;  public class GFG {    public static void main(String[] args)    {          // Get the text        String time = "P1DT4M";          // Duration using parse() method        Duration duration            = Duration.parse(time);          // Duration using getUnits() method        List<TemporalUnit>            listOfUnits = duration.getUnits();          System.out.println("List of Units: "                           + listOfUnits);    }} |
Output:
List of Units: [Seconds, Nanos]
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/Duration.html#getUnits–
