Java中SimpleTimeZone类的inDaylightTime(Date)方法用于检查和验证给定日期是否在夏时制中。
用法:
public boolean inDaylightTime(Date date)
参数:该方法采用Date类型的一个参数date,这是要验证的给定日期。
返回值:如果传递的日期相对于夏时制无效,则该方法返回布尔值True,否则返回布尔值False。
以下程序说明了Java中inDaylightTime()方法的用法:
示例1:
// Java code to demonstrate
// inDaylightTime() method
import java.util.*;
public class SimpleTimeZone_Demo {
public static void main(String[] args)
{
// Creating a time zone object
SimpleTimeZone simtimeobj
= new SimpleTimeZone(540, "GMT");
// Creating date object
Date dt = new Date();
// Verifying daylight
boolean bool_daylight
= simtimeobj.inDaylightTime(dt);
// Checking the value of day light
System.out.println("Is it in day"
+ " light saving time? "
+ bool_daylight);
}
}
输出:
Is it in day light saving time? false
示例2:
// Java code to demonstrate
// inDaylightTime() method
import java.util.*;
public class SimpleTimeZone_Demo {
public static void main(String[] args)
{
// Creating a time zone object
SimpleTimeZone simtimeobj
= new SimpleTimeZone(400, "AUS");
// Creating a Calendar object
Calendar c1 = Calendar.getInstance();
// Set Month
// MONTH starts with 0 i.e.(0 - Jan)
c1.set(Calendar.MONTH, 00);
// Set Date
c1.set(Calendar.DATE, 30);
// Set Year
c1.set(Calendar.YEAR, 2019);
// Creating a date object
// with specified time.
Date dt = c1.getTime();
// Verifying daylight
boolean bool_daylight
= simtimeobj.inDaylightTime(dt);
// Checking the value of day light
System.out.println("Is it in day"
+ " light saving time? "
+ bool_daylight);
}
}
输出:
Is it in day light saving time? false
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注:本文由纯净天空筛选整理自Chinmoy Lenka大神的英文原创作品 SimpleTimeZone inDaylightTime() method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。