程序包 java.text

类 DateFormat.Field

java.lang.Object

java.text.AttributedCharacterIterator.Attribute

java.text.Format.Field

java.text.DateFormat.Field

所有已实现的接口:

Serializable

封闭类:

DateFormat

public static class DateFormat.Field
extends Format.Field

Defines constants that are used as attribute keys in the AttributedCharacterIterator returned from DateFormat.formatToCharacterIterator and as field identifiers in FieldPosition.

The class also provides two methods to map between its constants and the corresponding Calendar constants.

从以下版本开始:

1.4

另请参阅:

Calendar, 序列化表格

字段概要

字段

限定符和类型	字段	说明
static DateFormat.Field	AM_PM	Constant identifying the time of day indicator (e.g. "a.m." or "p.m.") field.
static DateFormat.Field	DAY_OF_MONTH	Constant identifying the day of month field.
static DateFormat.Field	DAY_OF_WEEK	Constant identifying the day of week field.
static DateFormat.Field	DAY_OF_WEEK_IN_MONTH	Constant identifying the day of week field.
static DateFormat.Field	DAY_OF_YEAR	Constant identifying the day of year field.
static DateFormat.Field	ERA	Constant identifying the era field.
static DateFormat.Field	HOUR_OF_DAY0	Constant identifying the hour of day field, where the legal values are 0 to 23.
static DateFormat.Field	HOUR_OF_DAY1	Constant identifying the hour of day field, where the legal values are 1 to 24.
static DateFormat.Field	HOUR0	Constant identifying the hour field, where the legal values are 0 to 11.
static DateFormat.Field	HOUR1	Constant identifying the hour field, where the legal values are 1 to 12.
static DateFormat.Field	MILLISECOND	Constant identifying the millisecond field.
static DateFormat.Field	MINUTE	Constant identifying the minute field.
static DateFormat.Field	MONTH	Constant identifying the month field.
static DateFormat.Field	SECOND	Constant identifying the second field.
static DateFormat.Field	TIME_ZONE	Constant identifying the time zone field.
static DateFormat.Field	WEEK_OF_MONTH	Constant identifying the week of month field.
static DateFormat.Field	WEEK_OF_YEAR	Constant identifying the week of year field.
static DateFormat.Field	YEAR	Constant identifying the year field.

从类继承的字段 java.text.AttributedCharacterIterator.Attribute

INPUT_METHOD_SEGMENT, LANGUAGE, READING

构造器概要

构造器

限定符	构造器	说明
protected	Field(String name, int calendarField)	Creates a Field.

方法概要

限定符和类型	方法	说明
int	getCalendarField()	Returns the Calendar field associated with this attribute.
static DateFormat.Field	ofCalendarField(int calendarField)	Returns the Field constant that corresponds to the Calendar constant calendarField.
protected Object	readResolve()	Resolves instances being deserialized to the predefined constants.

从类继承的方法 java.text.AttributedCharacterIterator.Attribute

equals, getName, hashCode, toString

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

字段详细资料

AM_PM

public static final DateFormat.Field AM_PM

Constant identifying the time of day indicator (e.g. "a.m." or "p.m.") field.

DAY_OF_MONTH

public static final DateFormat.Field DAY_OF_MONTH

Constant identifying the day of month field.

DAY_OF_WEEK

public static final DateFormat.Field DAY_OF_WEEK

Constant identifying the day of week field.

DAY_OF_WEEK_IN_MONTH

public static final DateFormat.Field DAY_OF_WEEK_IN_MONTH

Constant identifying the day of week field.

DAY_OF_YEAR

public static final DateFormat.Field DAY_OF_YEAR

Constant identifying the day of year field.

ERA

public static final DateFormat.Field ERA

Constant identifying the era field.

HOUR0

public static final DateFormat.Field HOUR0

Constant identifying the hour field, where the legal values are 0 to 11.

HOUR1

public static final DateFormat.Field HOUR1

Constant identifying the hour field, where the legal values are 1 to 12.

HOUR_OF_DAY0

public static final DateFormat.Field HOUR_OF_DAY0

Constant identifying the hour of day field, where the legal values are 0 to 23.

HOUR_OF_DAY1

public static final DateFormat.Field HOUR_OF_DAY1

Constant identifying the hour of day field, where the legal values are 1 to 24.

MILLISECOND

public static final DateFormat.Field MILLISECOND

Constant identifying the millisecond field.

MINUTE

public static final DateFormat.Field MINUTE

Constant identifying the minute field.

MONTH

public static final DateFormat.Field MONTH

Constant identifying the month field.

SECOND

public static final DateFormat.Field SECOND

Constant identifying the second field.

TIME_ZONE

public static final DateFormat.Field TIME_ZONE

Constant identifying the time zone field.

WEEK_OF_MONTH

public static final DateFormat.Field WEEK_OF_MONTH

Constant identifying the week of month field.

WEEK_OF_YEAR

public static final DateFormat.Field WEEK_OF_YEAR

Constant identifying the week of year field.

YEAR

public static final DateFormat.Field YEAR

Constant identifying the year field.

构造器详细资料

Field

protected Field(String name,
                int calendarField)

Creates a Field.

参数:

name - the name of the Field

calendarField - the Calendar constant this Field corresponds to; any value, even one outside the range of legal Calendar values may be used, but -1 should be used for values that don't correspond to legal Calendar values

方法详细资料

ofCalendarField

public static DateFormat.Field ofCalendarField(int calendarField)

Returns the Field constant that corresponds to the Calendar constant calendarField. If there is no direct mapping between the Calendar constant and a Field, null is returned.

参数:

calendarField - Calendar field constant

返回:

Field instance representing calendarField.

抛出:

IllegalArgumentException - if calendarField is not the value of a Calendar field constant.

另请参阅:

Calendar

getCalendarField

public int getCalendarField()

Returns the Calendar field associated with this attribute. For example, if this represents the hours field of a Calendar, this would return Calendar.HOUR. If there is no corresponding Calendar constant, this will return -1.

返回:

Calendar constant for this field

另请参阅:

Calendar

readResolve

protected Object readResolve()
                      throws InvalidObjectException

Resolves instances being deserialized to the predefined constants.

覆盖:

readResolve 在类中 AttributedCharacterIterator.Attribute

返回:

resolved DateFormat.Field constant

抛出:

InvalidObjectException - if the constant could not be resolved.