java timezone

TimeZone类的setDefault()方法 (TimeZone Class setDefault() method)

• setDefault() method is available in java.util package.

  setDefault()方法在java.util包中可用。

• setDefault() method is used to assign the default time zone which is retrieved by using the getDefault().

  setDefault()方法用于分配使用getDefault()检索的默认时区。

• setDefault() method is a static method, it is accessible with the class name and if we try to access the method with the class object then we will not get an error.

  setDefault()方法是一个静态方法，可以使用类名进行访问，如果尝试使用类对象访问该方法，则不会收到错误。

• setDefault() method does not throw an exception at the time of setting the default time zone.

  setDefault()方法在设置默认时区时不会引发异常。

Syntax:

句法：

    public static void setDefault(TimeZone tz);

Parameter(s):

参数：

• TimeZone tz – represents the set default time zone.

  TimeZone tz –表示设置的默认时区。

Return value:

返回值：

The return type of the method is void, it returns nothing.

该方法的返回类型为void ，不返回任何内容。

Example:

例：

// Java program to demonstrate the example 
// of void setDefault(TimeZone tz)
// method of TimeZone 
import java.util.*;
public class SetDefaultOfTimeZone {
public static void main(String args[]) {
// Instantiates TimeZone object
TimeZone tz = TimeZone.getDefault();
// Display tz
System.out.println("TimeZone.getDefault(): " + tz);
// Get another time zone and set as default 
// time zone
tz = TimeZone.getTimeZone("Africa/Asmera");
// By using setDefault() method is
// to set the given time zone as default
// time zone
TimeZone.setDefault(tz);
System.out.print("TimeZone.setDefault(tz): ");
System.out.println(tz);
}
}

Output

输出量

TimeZone.getDefault(): sun.util.calendar.ZoneInfo[id="GMT",offset=0,dstSavings=0,useDaylight=false,transitions=0,lastRule=null]
TimeZone.setDefault(tz): sun.util.calendar.ZoneInfo[id="Africa/Asmera",offset=10800000,dstSavings=0,useDaylight=false,transitions=6,lastRule=null]

翻译自: https://www.includehelp.com/java/timezone-setdefault-method-with-example.aspx

java timezone