java.time包中的Duration Class的toNanosPart()方法用於在持續時間的秒數內獲取納秒部分。
用法:
public long toNanosPart()
參數:此方法不接受任何參數。
返回值:此方法返回一個long值,該值是持續時間(秒)內的納秒部分。
以下示例說明了Duration.toNanosPart()方法:
示例1:
// Java code to illustrate toNanosPart() method
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
// Duration using parse() method
Duration duration
= Duration.parse("P2DT3H4M");
System.out.println("Duration: "
+ duration);
// Get the number of nano-seconds
// using toNanosPart() method
System.out.println(duration.toNanosPart());
}
}
輸出:
Duration: PT51H4M 0
示例2:
// Java code to illustrate toNanosPart() method
import java.time.Duration;
public class GFG {
public static void main(String[] args)
{
// Duration using ofNanos() method
Duration duration = Duration.ofNanos(10);
System.out.println("Duration: "
+ duration);
// Get the number of nano-seconds
// using toNanosPart() method
System.out.println(duration.toNanosPart());
}
}
輸出:
Duration: PT0.00000001S 10
參考: https://docs.oracle.com/javase/9/docs/api/java/time/Duration.html#toNanosPart–
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