Java 中 TimeZone inDaylightTime()方法，示例
原文:https://www . geesforgeks . org/time zone-indaylighttime-method-in-Java-with-examples/
Java 中 TimeZone 类 的inDaylightTime(Date)方法用于检查并验证给定日期是否为夏令时。
语法:
public abstract boolean
inDaylightTime(Date *date*)
参数:该方法取日期类型的一个参数日期，该日期类型为待验证的给定日期。
返回值:如果传递的日期相对于夏令时无效，则该方法返回布尔值“真”，否则该方法返回布尔值“假”。
下面的程序说明了 inDaylightTime()方法在 Java 中的使用: 示例 1:
// Java code to demonstrate
// inDaylightTime() method
import java.util.*;
public class SimpleTimeZone_Demo {
public static void main(String[] args)
{
// Creating a TimeZone
TimeZone offtime_zone
= TimeZone.getTimeZone("Europe/Rome");
// Creating date object
Date dt = new Date();
// Verifying daylight
boolean bool_daylight
= offtime_zone.inDaylightTime(dt);
// Checking the value of day light
System.out.println("Is it in day"
+ " light saving time? "
+ bool_daylight);
}
}
Output:
Is it in day light saving time? true
例 2:
// Java code to demonstrate
// inDaylightTime() method
import java.util.*;
public class SimpleTimeZone_Demo {
public static void main(String[] args)
{
// Creating a TimeZone
TimeZone offtime_zone
= TimeZone.getTimeZone("Pacific/Pago_Pago");
// Creating date object
Date dt = new Date();
// Verifying daylight
boolean bool_daylight
= offtime_zone.inDaylightTime(dt);
// Checking the value of day light
System.out.println("Is it in day"
+ " light saving time? "
+ bool_daylight);
}
}
Output:
Is it in day light saving time? false
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