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DecimalFormatSymbols (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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java.text
Class DecimalFormatSymbols

java.lang.Object
  java.text.DecimalFormatSymbols

All Implemented Interfaces:

Serializable, Cloneable

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public class DecimalFormatSymbols
extends Object
implements Cloneable, Serializable

This class represents the set of symbols (such as the decimal separator, the grouping separator, and so on) needed by DecimalFormat to format numbers. DecimalFormat creates for itself an instance of DecimalFormatSymbols from its locale data. If you need to change any of these symbols, you can get the DecimalFormatSymbols object from your DecimalFormat and modify it.

See Also:

Locale, DecimalFormat, Serialized Form

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Constructor Summary
DecimalFormatSymbols()           Create a DecimalFormatSymbols object for the default locale.
DecimalFormatSymbols(Locale locale)           Create a DecimalFormatSymbols object for the given locale.

 

Method Summary
Object	clone()           Standard override.
boolean	equals(Object obj)           Override equals.
static Locale[]	getAvailableLocales()           Returns an array of all locales for which the getInstance methods of this class can return localized instances.
Currency	getCurrency()           Gets the currency of these DecimalFormatSymbols.
String	getCurrencySymbol()           Returns the currency symbol for the currency of these DecimalFormatSymbols in their locale.
char	getDecimalSeparator()           Gets the character used for decimal sign.
char	getDigit()           Gets the character used for a digit in a pattern.
String	getExponentSeparator()           Returns the string used to separate the mantissa from the exponent.
char	getGroupingSeparator()           Gets the character used for thousands separator.
String	getInfinity()           Gets the string used to represent infinity.
static DecimalFormatSymbols	getInstance()           Gets the DecimalFormatSymbols instance for the default locale.
static DecimalFormatSymbols	getInstance(Locale locale)           Gets the DecimalFormatSymbols instance for the specified locale.
String	getInternationalCurrencySymbol()           Returns the ISO 4217 currency code of the currency of these DecimalFormatSymbols.
char	getMinusSign()           Gets the character used to represent minus sign.
char	getMonetaryDecimalSeparator()           Returns the monetary decimal separator.
String	getNaN()           Gets the string used to represent "not a number".
char	getPatternSeparator()           Gets the character used to separate positive and negative subpatterns in a pattern.
char	getPercent()           Gets the character used for percent sign.
char	getPerMill()           Gets the character used for per mille sign.
char	getZeroDigit()           Gets the character used for zero.
int	hashCode()           Override hashCode.
void	setCurrency(Currency currency)           Sets the currency of these DecimalFormatSymbols.
void	setCurrencySymbol(String currency)           Sets the currency symbol for the currency of these DecimalFormatSymbols in their locale.
void	setDecimalSeparator(char decimalSeparator)           Sets the character used for decimal sign.
void	setDigit(char digit)           Sets the character used for a digit in a pattern.
void	setExponentSeparator(String exp)           Sets the string used to separate the mantissa from the exponent.
void	setGroupingSeparator(char groupingSeparator)           Sets the character used for thousands separator.
void	setInfinity(String infinity)           Sets the string used to represent infinity.
void	setInternationalCurrencySymbol(String currencyCode)           Sets the ISO 4217 currency code of the currency of these DecimalFormatSymbols.
void	setMinusSign(char minusSign)           Sets the character used to represent minus sign.
void	setMonetaryDecimalSeparator(char sep)           Sets the monetary decimal separator.
void	setNaN(String NaN)           Sets the string used to represent "not a number".
void	setPatternSeparator(char patternSeparator)           Sets the character used to separate positive and negative subpatterns in a pattern.
void	setPercent(char percent)           Sets the character used for percent sign.
void	setPerMill(char perMill)           Sets the character used for per mille sign.
void	setZeroDigit(char zeroDigit)           Sets the character used for zero.

 

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

DecimalFormatSymbols

public DecimalFormatSymbols()

Create a DecimalFormatSymbols object for the default locale. This constructor can only construct instances for the locales supported by the Java runtime environment, not for those supported by installed DecimalFormatSymbolsProvider implementations. For full locale coverage, use the getInstance method.

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DecimalFormatSymbols

public DecimalFormatSymbols(Locale locale)

Create a DecimalFormatSymbols object for the given locale. This constructor can only construct instances for the locales supported by the Java runtime environment, not for those supported by installed DecimalFormatSymbolsProvider implementations. For full locale coverage, use the getInstance method.

Throws:

NullPointerException - if locale is null

Method Detail

getAvailableLocales

public static Locale[] getAvailableLocales()

Returns an array of all locales for which the getInstance methods of this class can return localized instances. The returned array represents the union of locales supported by the Java runtime and by installed DecimalFormatSymbolsProvider implementations. It must contain at least a Locale instance equal to Locale.US.

Returns:

An array of locales for which localized DecimalFormatSymbols instances are available.

Since:

1.6

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getInstance

public static final DecimalFormatSymbols getInstance()

Gets the DecimalFormatSymbols instance for the default locale. This method provides access to DecimalFormatSymbols instances for locales supported by the Java runtime itself as well as for those supported by installed DecimalFormatSymbolsProvider implementations.

Returns:

a DecimalFormatSymbols instance.

Since:

1.6

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getInstance

public static final DecimalFormatSymbols getInstance(Locale locale)

Gets the DecimalFormatSymbols instance for the specified locale. This method provides access to DecimalFormatSymbols instances for locales supported by the Java runtime itself as well as for those supported by installed DecimalFormatSymbolsProvider implementations.

Parameters:

locale - the desired locale.

Returns:

a DecimalFormatSymbols instance.

Throws:

NullPointerException - if locale is null

Since:

1.6

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getZeroDigit

public char getZeroDigit()

Gets the character used for zero. Different for Arabic, etc.

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setZeroDigit

public void setZeroDigit(char zeroDigit)

Sets the character used for zero. Different for Arabic, etc.

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getGroupingSeparator

public char getGroupingSeparator()

Gets the character used for thousands separator. Different for French, etc.

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setGroupingSeparator

public void setGroupingSeparator(char groupingSeparator)

Sets the character used for thousands separator. Different for French, etc.

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getDecimalSeparator

public char getDecimalSeparator()

Gets the character used for decimal sign. Different for French, etc.

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setDecimalSeparator

public void setDecimalSeparator(char decimalSeparator)

Sets the character used for decimal sign. Different for French, etc.

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getPerMill

public char getPerMill()

Gets the character used for per mille sign. Different for Arabic, etc.

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setPerMill

public void setPerMill(char perMill)

Sets the character used for per mille sign. Different for Arabic, etc.

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getPercent

public char getPercent()

Gets the character used for percent sign. Different for Arabic, etc.

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setPercent

public void setPercent(char percent)

Sets the character used for percent sign. Different for Arabic, etc.

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getDigit

public char getDigit()

Gets the character used for a digit in a pattern.

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setDigit

public void setDigit(char digit)

Sets the character used for a digit in a pattern.

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getPatternSeparator

public char getPatternSeparator()

Gets the character used to separate positive and negative subpatterns in a pattern.

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setPatternSeparator

public void setPatternSeparator(char patternSeparator)

Sets the character used to separate positive and negative subpatterns in a pattern.

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getInfinity

public String getInfinity()

Gets the string used to represent infinity. Almost always left unchanged.

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setInfinity

public void setInfinity(String infinity)

Sets the string used to represent infinity. Almost always left unchanged.

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getNaN

public String getNaN()

Gets the string used to represent "not a number". Almost always left unchanged.

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setNaN

public void setNaN(String NaN)

Sets the string used to represent "not a number". Almost always left unchanged.

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getMinusSign

public char getMinusSign()

Gets the character used to represent minus sign. If no explicit negative format is specified, one is formed by prefixing minusSign to the positive format.

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setMinusSign

public void setMinusSign(char minusSign)

Sets the character used to represent minus sign. If no explicit negative format is specified, one is formed by prefixing minusSign to the positive format.

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getCurrencySymbol

public String getCurrencySymbol()

Returns the currency symbol for the currency of these DecimalFormatSymbols in their locale.

Since:

1.2

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setCurrencySymbol

public void setCurrencySymbol(String currency)

Sets the currency symbol for the currency of these DecimalFormatSymbols in their locale.

Since:

1.2

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getInternationalCurrencySymbol

public String getInternationalCurrencySymbol()

Returns the ISO 4217 currency code of the currency of these DecimalFormatSymbols.

Since:

1.2

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setInternationalCurrencySymbol

public void setInternationalCurrencySymbol(String currencyCode)

Sets the ISO 4217 currency code of the currency of these DecimalFormatSymbols. If the currency code is valid (as defined by Currency.getInstance), this also sets the currency attribute to the corresponding Currency instance and the currency symbol attribute to the currency's symbol in the DecimalFormatSymbols' locale. If the currency code is not valid, then the currency attribute is set to null and the currency symbol attribute is not modified.

Since:

1.2

See Also:

setCurrency(java.util.Currency), setCurrencySymbol(java.lang.String)

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getCurrency

public Currency getCurrency()

Gets the currency of these DecimalFormatSymbols. May be null if the currency symbol attribute was previously set to a value that's not a valid ISO 4217 currency code.

Returns:

the currency used, or null

Since:

1.4

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setCurrency

public void setCurrency(Currency currency)

Sets the currency of these DecimalFormatSymbols. This also sets the currency symbol attribute to the currency's symbol in the DecimalFormatSymbols' locale, and the international currency symbol attribute to the currency's ISO 4217 currency code.

Parameters:

currency - the new currency to be used

Throws:

NullPointerException - if currency is null

Since:

1.4

See Also:

setCurrencySymbol(java.lang.String), setInternationalCurrencySymbol(java.lang.String)

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getMonetaryDecimalSeparator

public char getMonetaryDecimalSeparator()

Returns the monetary decimal separator.

Since:

1.2

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setMonetaryDecimalSeparator

public void setMonetaryDecimalSeparator(char sep)

Sets the monetary decimal separator.

Since:

1.2

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getExponentSeparator

public String getExponentSeparator()

Returns the string used to separate the mantissa from the exponent. Examples: "x10^" for 1.23x10^4, "E" for 1.23E4.

Returns:

the exponent separator string

Since:

1.6

See Also:

setExponentSeparator(java.lang.String)

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setExponentSeparator

public void setExponentSeparator(String exp)

Sets the string used to separate the mantissa from the exponent. Examples: "x10^" for 1.23x10^4, "E" for 1.23E4.

Parameters:

exp - the exponent separator string

Throws:

NullPointerException - if exp is null

Since:

1.6

See Also:

getExponentSeparator()

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clone

public Object clone()

Standard override.

Overrides:

clone in class Object

Returns:

a clone of this instance.

See Also:

Cloneable

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equals

public boolean equals(Object obj)

Override equals.

Overrides:

equals in class Object

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.hashCode(), Hashtable

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hashCode

public int hashCode()

Override hashCode.

Overrides:

hashCode in class Object

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable

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