Java Duration getUnits()方法及示例

java.time包中Duration类的getUnits()方法用于获取该期限所支持的单位列表。

语法。

public List<TemporalUnit> getUnits()

参数。此方法不接受任何参数。

返回值。该方法返回该期限所支持的单位的列表。这些单位是SECONDS和NANOS。

下面的例子说明了Duration.getUnits()方法。

例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);
    }
}

输出:

List of Units: [Seconds, Nanos]

例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);
    }
}

输出: