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Java Duration Class | getUnits() Method with Example

Duration Class getUnits() method: Here, we are going to learn about the getUnits() method of Duration Class with its syntax and example.
Submitted by Preeti Jain, on May 16, 2020

Duration Class getUnits() method

• getUnits() method is available in java.time package.
• getUnits() method is used to get the List object that contains the units of seconds and Nanos of this Duration.
• getUnits() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• getUnits() method does not throw an exception at the time of returning a list of units.

Syntax:

    public List getUnits();

Parameter(s):

• None

Return value:

The return type of this method is List, it returns a list of seconds and nanos units from this Duration.

Example:

// Java program to demonstrate the example 
// of List getUnits() method of Duration

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

public class GetUnitsOfDuration {
    public static void main(String args[]) {
        // Instantiates two Duration objects
        Duration du1 = Duration.ofHours(1);
        Duration du2 = Duration.parse("P1DT24H60M60S");

        // Display du1 and du2
        System.out.println("du1: " + du1);
        System.out.println("du2: " + du2);

        // get a list of units supported 
        // by this Duration du1
        List list_of_units = du1.getUnits();

        // Display list_of_units
        System.out.println("du1.getUnits(): " + list_of_units);

        // gets a list of units supported 
        // by this Duration du2
        list_of_units = du2.getUnits();

        // Display list_of_units
        System.out.println("du2.getUnits(): " + list_of_units);
    }
}

Output

du1: PT1H
du2: PT49H1M
du1.getUnits(): [Seconds, Nanos]
du2.getUnits(): [Seconds, Nanos]