Java 中的 LocalTime toNanoOfDay()方法,带示例
原文:https://www . geesforgeks . org/local time-tonanofday-method-in-Java-with-examples/
LocalTime 类的 toNanoOfDay() 方法用于从这个 LocalTime 返回时间为一天的纳米。此方法返回的值介于 0 到 24 * 60 * 60 * 1,000,000,000–1 之间。
语法:
public long toNanoOfDay()
参数:该方法不接受参数。
返回值:这个方法返回一个长值,是日值的纳米,相当于这个时间。
以下程序说明了 toNanoOfDay()方法:
程序 1:
// Java program to demonstrate
// LocalTime.toNanoOfDay() 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");
// extract nano of day from toNanoOfDay()
long value = time.toNanoOfDay();
// print result
System.out.println("Nano of day: "
+ value);
}
}
输出:
Nano of day: 70490630000000
程序二:
// Java program to demonstrate
// LocalTime.toNanoOfDay() method
import java.time.*;
public class GFG {
public static void main(String[] args)
{
// create a LocalTime object
LocalTime time
= LocalTime.parse("23:21:45.98");
// extract nano of day from toNanoOfDay()
long value = time.toNanoOfDay();
// print result
System.out.println("Nano of day: "
+ value);
}
}
输出:
Nano of day: 84105980000000
参考:https://docs . Oracle . com/javase/10/docs/API/Java/time/localtime . html # tonanofday()
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