Javatime 简明教程
java.time.ZoneId Class
Introduction
java.time.ZoneId 类表示时区 ID，例如 Europe/Paris。
The java.time.ZoneId class represents a time-zone ID, such as Europe/Paris.
Class declaration
以下是在 java.time.ZoneId 类中声明 −
Following is the declaration for java.time.ZoneId class −
public abstract class ZoneId
extends Object
implements SerializableField
以下是在 Java.time.ZoneId 类中的字段 −
Following are the fields for Java.time.ZoneId class −
-
static Map<String,String> SHORT_IDS − A map of zone overrides to enable the short time-zone names to be used.
Class methods
Sr.No. |
Method & Description |
1 |
boolean equals(Object obj)Checks if this time-zone ID is equal to another time-zone ID. |
2 |
static ZoneId from(TemporalAccessor temporal)Obtains an instance of ZoneId from a temporal object. |
3 |
static Set<String> getAvailableZoneIds()Gets the set of available zone IDs. |
4 |
String getDisplayName(TextStyle style, Locale locale)Gets the textual representation of the zone, such as 'British Time' or '+02:00'. |
5 |
abstract String getId()Gets the unique time-zone ID. |
6 |
abstract ZoneRules getRules()Gets the time-zone rules for this ID allowing calculations to be performed. |
7 |
int hashCode()A hash code for this time-zone ID. |
8 |
ZoneId normalized()Normalizes the time-zone ID, returning a ZoneOffset where possible. |
9 |
static ZoneId of(String zoneId)Obtains an instance of ZoneId from an ID ensuring that the ID is valid and available for use. |
10 |
static ZoneId of(String zoneId, Map<String,String> aliasMap)Obtains an instance of ZoneId using its ID using a map of aliases to supplement the standard zone IDs. |
11 |
static ZoneId ofOffset(String prefix, ZoneOffset offset)Obtains an instance of ZoneId wrapping an offset. |
12 |
static ZoneId systemDefault()Gets the system default time-zone. |
13 |
String toString()Outputs this zone as a String, using the ID. |