Java 中的 SimpleTimeZone useDaylightTime()方法

原文:https://www . geesforgeks . org/simple time zone-usedaylighttime-method-in-Java/

简单时区类useDaylightTime() 方法用于查询该时区是否使用夏令时。

语法:

public boolean useDaylightTime()

参数:函数不接受任何参数。

返回值:该方法给出两个返回值中的任意一个:

  • 如果该时区使用夏令时,则为“true”
  • 如果该时区不使用夏令时,则为“false”

异常:函数不抛出任何异常。

下面的程序演示了上述功能:

// program to demonstrate the
// function java.util.SimpleTimeZone.useDaylightTime()
import java.util.*;

public class GFG {

    public static void main(String[] args)
    {

        // create simple time zone object
        SimpleTimeZone obj
            = new SimpleTimeZone(700, "US");

        // checking day light time
        // and printing the result
        System.out.println("Day light time is = "
                           + obj.useDaylightTime());
    }
}

Output:

Day light time is = false
// program to demonstrate the
// function java.util.SimpleTimeZone.useDaylightTime()
import java.util.*;

public class GFG {

    public static void main(String[] args)
    {

        // create simple time zone object
        SimpleTimeZone obj
            = new SimpleTimeZone(820, "India");

        // checking day light time
        // and printing the result
        System.out.println("Day light time is = "
                           + obj.useDaylightTime());
    }
}

Output:

Day light time is = false