📜  Java中的 LocalTime plusNanos() 方法及示例

📅  最后修改于: 2022-05-13 01:55:04.212000             🧑  作者: Mango

Java中的 LocalTime plusNanos() 方法及示例

LocalTimeplusNanos()方法用于向此 LocalTime 添加指定的纳秒值,并将结果作为 LocalTime 对象返回。这个瞬间是不变的。计算在午夜左右结束。

句法:

public LocalTime plusNanos(long nanosecondsToAdd)

参数:此方法接受单个参数nanosecondsToAdd ,它是要添加的纳秒值,它可以是负值。

返回值:此方法基于此时间返回一个LocalTime ,并添加纳秒。

下面的程序说明了 plusNanos() 方法:

方案一:

// Java program to demonstrate
// LocalTime.plusNanos() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create a LocalTime object
        LocalTime time
            = LocalTime.parse("19:34:50.63");
  
        // print LocalTime
        System.out.println("LocalTime before add: "
                           + time);
  
        // add 34000000 nanoseconds using plusNanos()
        LocalTime value = time.plusNanos(34000000);
  
        // print result
        System.out.println("LocalTime after add: "
                           + value);
    }
}
输出:
LocalTime before add: 19:34:50.630
LocalTime after add: 19:34:50.664

方案二:

// Java program to demonstrate
// LocalTime.plusNanos() method
  
import java.time.*;
  
public class GFG {
    public static void main(String[] args)
    {
  
        // create a LocalTime object
        LocalTime time
            = LocalTime.parse("01:00:01");
  
        // print LocalTime
        System.out.println("LocalTime before add: "
                           + time);
  
        // add -971200000 nanoseconds  using plusNanos()
        LocalTime value = time.plusNanos(-971200000);
  
        // print result
        System.out.println("LocalTime after add: "
                           + value);
    }
}
输出:
LocalTime before add: 01:00:01
LocalTime after add: 01:00:00.028800

参考资料: https: Java/time/LocalTime.html#plusNanos(long)