date.gethour

LocalDateTime类getHour()方法 (LocalDateTime Class getHour() method)

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

  getHour()方法在java.time包中可用。

• getHour() method is used to get an hour-of-day field value from this date-time object.

  getHour()方法用于从该日期时间对象获取一天中的小时值。

• getHour() 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.

  getHour()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。

• getHour() method does not throw an exception at the time of getting an hour of the day.

  在一天中的一个小时内， getHour()方法不会引发异常。

Syntax:

句法：

    public int getHour();

Parameter(s):

参数：

• None

  没有

Return value:

返回值：

The return type of this method is int, it returns the value hour-of-day field of this object and the number of hours in a day starts from 0 and ends at 23.

此方法的返回类型为int ，它返回此对象的value-of-day字段，并且一天中的小时数从0开始，以23结尾。

Example:

例：

// Java program to demonstrate the example 
// of getHour() method of LocalDateTime
import java.time.*;
public class GetHourOfLocalDateTime {
public static void main(String args[]) {
// Instantiates two LocalDateTime
LocalDateTime da_ti1 = LocalDateTime.parse("2005-10-05T10:10:10");
LocalDateTime da_ti2 = LocalDateTime.now();
// Display da_ti1, da_ti2
System.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 hour-of-day from 
// this date-time object (da_ti1)
int hod = da_ti1.getHour();
// Display hod
System.out.println("da_ti1.getHour(): " + hod);
// Here, this method returns the 
// field value hour-of-day from 
// this date-time object (da_ti2)
hod = da_ti2.getHour();
// Display hod
System.out.println("da_ti2.getHour(): " + hod);
}
}

Output

输出量

LocalDateTime da_ti1 and da_ti2: 
da_ti1: 2005-10-05T10:10:10
da_ti2: 2020-06-05T02:54:33.968481da_ti1.getHour(): 10
da_ti2.getHour(): 2

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

date.gethour