Java SimpleTimeZone setDSTSavings()方法及示例

SimpleTimeZone类 的 setDSTSavings() 方法用于设置夏令时期间时钟提前的时间量。计算的单位是毫秒。

语法

public void setDSTSavings(int millisSavedDuringDST)

参数： 该函数接受一个参数 millisSavedDuringDST ，指定时间比标准时间提前多少毫秒。

返回值： 该方法没有返回值。

异常： 该函数没有抛出任何异常。

下面的程序演示了上述函数。

程序1 :

// program to demonstrate the// function SimpleTimeZone.setDSTSavings()import java.util.*;public class GFG {    public static void main(String[] args)    {        // create simple time zone object        SimpleTimeZone obj            = new SimpleTimeZone(-28800000,                                 "US",                                 Calendar.MAY,                                 1,                                 -Calendar.SUNDAY,                                 7200000,                                 Calendar.NOVEMBER,                                 -1,                                 Calendar.MONDAY,                                 7000000,                                 3500000);        // printing DST value        System.out.println("Initially DST saving value is = "                           + obj.getDSTSavings());        // setting DST saving time on object obj        obj.setDSTSavings(6000000);        System.out.println("DST saving value "                           + "set to 6000000");        // printing DST value        System.out.println("Current DST saving value is = "                           + obj.getDSTSavings());    }}

输出

Initially DST saving value is = 3500000
DST saving value set to 6000000
Current DST saving value is = 6000000

程序2

// program to demonstrate the// function SimpleTimeZone.setDSTSavings()import java.util.*;public class GFG {    public static void main(String[] args)    {        // create simple time zone object        SimpleTimeZone obj            = new SimpleTimeZone(-28800000,                                 "US",                                 Calendar.MAY,                                 1,                                 -Calendar.MONDAY,                                 7200000,                                 Calendar.JULY,                                 -1,                                 Calendar.MONDAY,                                 7000000,                                 3500000);        // printing DST value        System.out.println("Initially DST saving value is = "                           + obj.getDSTSavings());        // setting DST saving time on object obj        obj.setDSTSavings(4000000);        System.out.println("DST saving value "                           + "set to 4000000");        // printing DST value        System.out.println("Current DST saving value is = "                           + obj.getDSTSavings());    }}

输出

Initially DST saving value is = 3500000
DST saving value set to 4000000
Current DST saving value is = 4000000