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📜  Java.util.TimeZone类

📅  最后修改于: 2020-11-14 06:36:49             🧑  作者: Mango

介绍

java.util.TimeZone类表示时区偏移量，还可以计算夏令时。以下是有关TimeZone的要点-

  • 它考虑了各个时区。

  • 通过在此类下使用的方法，在任何国家/地区运行的程序都可以基于该特定国家/地区的时区获取TimeZone对象。

类声明

以下是java.util.TimeZone类的声明-

public abstract class TimeZone
   extends Object
   implements Serializable, Cloneable

领域

以下是java.util.TimeZone类的字段-

  • static int LONG-这是getDisplayName()的样式说明符，用于指示长名称，例如“太平洋标准时间”。

  • static int SHORT-这是getDisplayName()的样式说明符，用于指示短名称，例如“ Pacific.Standard Time”。

类的构造函数

Sr.No. Constructor & Description
1

TimeZone()

This constructor is the single constructor for invocation by subclass constructors.

类方法

Sr.No. Method & Description
1 Object clone()

This method creates a copy of this TimeZon
2 static String[] getAvailableIDs()

This method gets all the available IDs supported.
3 static String[] getAvailableIDs(int rawOffset)

This method gets the available IDs according to the given time zone offset in milliseconds.
4 static TimeZone getDefault()

This method gets the default TimeZone for this host.
5 String getDisplayName()

This method returns a name of this time zone suitable for presentation to the user in the default locale.
6 String getDisplayName(boolean daylight, int style)

This method returns a name of this time zone suitable for presentation to the user in the default locale.
7 String getDisplayName(boolean daylight, int style, Locale locale)

This method returns a name of this time zone suitable for presentation to the user in the specified locale.
8 String getDisplayName(Locale locale)

This method returns a name of this time zone suitable for presentation to the user in the specified locale.
9 int getDSTSavings()

This method returns the amount of time to be added to local standard time to get local wall clock time.
10 String getID()

This method gets the ID of this time zone
11 abstract int getOffset(int era, int year, int month, int day, int dayOfWeek, int milliseconds)

This method gets the time zone offset, for current date, modified in case of daylight savings.
12 int getOffset(long date)

This method returns the offset of this time zone from UTC at the specified date.
13 abstract int getRawOffset()

This method returns the amount of time in milliseconds to add to UTC to get standard time in this time zone.
14 static TimeZone getTimeZone(String ID)

This method gets the TimeZone for the given ID.
15 boolean hasSameRules(TimeZone other)

This method returns true if this zone has the same rule and offset as another zone.
16 abstract boolean inDaylightTime(Date date)

This method queries if the given date is in daylight savings time in this time zone.
17 static void setDefault(TimeZone zone)

This method sets the TimeZone that is returned by the getDefault method.
18 void setID(String ID)

This method sets the time zone ID
19 abstract void setRawOffset(int offsetMillis)

This method sets the base time zone offset to GMT.
20 abstract boolean useDaylightTime()

This method queries if this time zone uses daylight savings time.

方法继承

此类从以下类继承方法-

  • java.util.Object