java 根据类名示例化类_Java LocalDateTime类| 带示例的getNano（）方法

java 根据类名示例化类

LocalDateTime类getNano()方法 (LocalDateTime Class getNano() method)

• getNano() method is available in java.time package.

  getNano()方法在java.time包中可用。

• getNano() method is used to get nano-of-second field value from this date-time object.

  getNano()方法用于从此日期时间对象获取毫微秒的字段值。

• getNano() 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.

  getNano()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• getNano() method does not throw an exception at the time of getting nano of second.

  getNano()方法在获得毫微秒的时间时不会引发异常。

Syntax:

句法：

public int getNano();

Parameter(s):

参数：

• None

  没有

Return value:

返回值：

The return type of this method is int, it returns the value nano-of-second field of this object and the number of nanoseconds in a second starts from 0 and ends at 999,999,999.

此方法的返回类型为int ，它返回该对象的nano-of-second字段值，并且在一秒内的纳秒数从0开始到999,999,999结束。

Example:

例：

// Java program to demonstrate the example // of getNano() method of LocalDateTimeimport java.time.*;public class GetNanoOfLocalDateTime {public static void main(String args[]) {// Instantiates two LocalDateTimeLocalDateTime da_ti1 = LocalDateTime.parse("2005-10-05T10:10:10.2458");LocalDateTime da_ti2 = LocalDateTime.now();// Display da_ti1, da_ti2System.out.println("LocalDateTime da_ti1 and da_ti2: ");System.out.println("da_ti1: " + da_ti1);System.out.println("da_ti2: " + da_ti2);System.out.println();// Here, this method returns the field// value nano-of-second in an integer // from this date-time object (da_ti1)int get_nano = da_ti1.getNano();// Display get_nanoSystem.out.print("da_ti1.getNano(): ");System.out.println(get_nano);// Here, this method returns the field// value nano-of-second in an integer // from this date-time object (da_ti2)get_nano = da_ti2.getNano();// Display get_nanoSystem.out.print("da_ti2.getNano(): ");System.out.println(get_nano);} }

Output

输出量

LocalDateTime da_ti1 and da_ti2: da_ti1: 2005-10-05T10:10:10.245800 da_ti2: 2020-06-06T20:38:07.340022da_ti1.getNano(): 245800000 da_ti2.getNano(): 340022000

翻译自: https://www.includehelp.com/java/localdatetime-getnano-method-with-example.aspx

java 根据类名示例化类

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