If the locale contains "rg" (region override) * Unicode extension, * the symbols are overridden for the designated region. * * @see java.util.Locale * @see DecimalFormat * @author Mark Davis * @author Alan Liu * @since 1.1 */ public class DecimalFormatSymbols implements Cloneable, Serializable { /** * Create a DecimalFormatSymbols object for the default * {@link java.util.Locale.Category#FORMAT FORMAT} locale. * This constructor can only construct instances for the locales * supported by the Java runtime environment, not for those * supported by installed * {@link java.text.spi.DecimalFormatSymbolsProvider DecimalFormatSymbolsProvider} * implementations. For full locale coverage, use the * {@link #getInstance(Locale) getInstance} method. *
This is equivalent to calling * {@link #DecimalFormatSymbols(Locale) * DecimalFormatSymbols(Locale.getDefault(Locale.Category.FORMAT))}. * @see java.util.Locale#getDefault(java.util.Locale.Category) * @see java.util.Locale.Category#FORMAT */ public DecimalFormatSymbols() { initialize( Locale.getDefault(Locale.Category.FORMAT) ); } /** * 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 * {@link java.text.spi.DecimalFormatSymbolsProvider DecimalFormatSymbolsProvider} * implementations. For full locale coverage, use the * {@link #getInstance(Locale) getInstance} method. * If the specified locale contains the {@link java.util.Locale#UNICODE_LOCALE_EXTENSION} * for the numbering system, the instance is initialized with the specified numbering * system if the JRE implementation supports it. For example, *
* NumberFormat.getNumberInstance(Locale.forLanguageTag("th-TH-u-nu-thai"))
*
* This may return a {@code NumberFormat} instance with the Thai numbering system,
* instead of the Latin numbering system.
*
* @param locale the desired locale
* @exception NullPointerException if {@code locale} is null
*/
public DecimalFormatSymbols( Locale locale ) {
initialize( locale );
}
/**
* Returns an array of all locales for which the
* {@code 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
* {@link java.text.spi.DecimalFormatSymbolsProvider DecimalFormatSymbolsProvider}
* implementations. It must contain at least a {@code Locale}
* instance equal to {@link java.util.Locale#US Locale.US}.
*
* @return an array of locales for which localized
* {@code DecimalFormatSymbols} instances are available.
* @since 1.6
*/
public static Locale[] getAvailableLocales() {
LocaleServiceProviderPool pool =
LocaleServiceProviderPool.getPool(DecimalFormatSymbolsProvider.class);
return pool.getAvailableLocales();
}
/**
* Gets the {@code DecimalFormatSymbols} instance for the default
* locale. This method provides access to {@code DecimalFormatSymbols}
* instances for locales supported by the Java runtime itself as well
* as for those supported by installed
* {@link java.text.spi.DecimalFormatSymbolsProvider
* DecimalFormatSymbolsProvider} implementations.
* This is equivalent to calling * {@link #getInstance(Locale) * getInstance(Locale.getDefault(Locale.Category.FORMAT))}. * @see java.util.Locale#getDefault(java.util.Locale.Category) * @see java.util.Locale.Category#FORMAT * @return a {@code DecimalFormatSymbols} instance. * @since 1.6 */ public static final DecimalFormatSymbols getInstance() { return getInstance(Locale.getDefault(Locale.Category.FORMAT)); } /** * Gets the {@code DecimalFormatSymbols} instance for the specified * locale. This method provides access to {@code DecimalFormatSymbols} * instances for locales supported by the Java runtime itself as well * as for those supported by installed * {@link java.text.spi.DecimalFormatSymbolsProvider * DecimalFormatSymbolsProvider} implementations. * If the specified locale contains the {@link java.util.Locale#UNICODE_LOCALE_EXTENSION} * for the numbering system, the instance is initialized with the specified numbering * system if the JRE implementation supports it. For example, *
* NumberFormat.getNumberInstance(Locale.forLanguageTag("th-TH-u-nu-thai"))
*
* This may return a {@code NumberFormat} instance with the Thai numbering system,
* instead of the Latin numbering system.
*
* @param locale the desired locale.
* @return a {@code DecimalFormatSymbols} instance.
* @exception NullPointerException if {@code locale} is null
* @since 1.6
*/
public static final DecimalFormatSymbols getInstance(Locale locale) {
LocaleProviderAdapter adapter;
adapter = LocaleProviderAdapter.getAdapter(DecimalFormatSymbolsProvider.class, locale);
DecimalFormatSymbolsProvider provider = adapter.getDecimalFormatSymbolsProvider();
DecimalFormatSymbols dfsyms = provider.getInstance(locale);
if (dfsyms == null) {
provider = LocaleProviderAdapter.forJRE().getDecimalFormatSymbolsProvider();
dfsyms = provider.getInstance(locale);
}
return dfsyms;
}
/**
* Gets the character used for zero. Different for Arabic, etc.
*
* @return the character used for zero
*/
public char getZeroDigit() {
return zeroDigit;
}
/**
* Sets the character used for zero. Different for Arabic, etc.
*
* @param zeroDigit the character used for zero
*/
public void setZeroDigit(char zeroDigit) {
this.zeroDigit = zeroDigit;
}
/**
* Gets the character used for thousands separator. Different for French, etc.
*
* @return the grouping separator
*/
public char getGroupingSeparator() {
return groupingSeparator;
}
/**
* Sets the character used for thousands separator. Different for French, etc.
*
* @param groupingSeparator the grouping separator
*/
public void setGroupingSeparator(char groupingSeparator) {
this.groupingSeparator = groupingSeparator;
}
/**
* Gets the character used for decimal sign. Different for French, etc.
*
* @return the character used for decimal sign
*/
public char getDecimalSeparator() {
return decimalSeparator;
}
/**
* Sets the character used for decimal sign. Different for French, etc.
*
* @param decimalSeparator the character used for decimal sign
*/
public void setDecimalSeparator(char decimalSeparator) {
this.decimalSeparator = decimalSeparator;
}
/**
* Gets the character used for per mille sign. Different for Arabic, etc.
*
* @return the character used for per mille sign
*/
public char getPerMill() {
return perMill;
}
/**
* Sets the character used for per mille sign. Different for Arabic, etc.
*
* @param perMill the character used for per mille sign
*/
public void setPerMill(char perMill) {
this.perMill = perMill;
this.perMillText = Character.toString(perMill);
}
/**
* Gets the string used for per mille sign. Different for Arabic, etc.
*
* @return the string used for per mille sign
* @since 13
*/
String getPerMillText() {
return perMillText;
}
/**
* Sets the string used for per mille sign. Different for Arabic, etc.
*
* Setting the {@code perMillText} affects the return value of
* {@link #getPerMill()}, in which the first non-format character of
* {@code perMillText} is returned.
*
* @param perMillText the string used for per mille sign
* @throws NullPointerException if {@code perMillText} is null
* @throws IllegalArgumentException if {@code perMillText} is an empty string
* @see #getPerMill()
* @see #getPerMillText()
* @since 13
*/
void setPerMillText(String perMillText) {
Objects.requireNonNull(perMillText);
if (perMillText.isEmpty()) {
throw new IllegalArgumentException("Empty argument string");
}
this.perMillText = perMillText;
this.perMill = findNonFormatChar(perMillText, '\u2030');
}
/**
* Gets the character used for percent sign. Different for Arabic, etc.
*
* @return the character used for percent sign
*/
public char getPercent() {
return percent;
}
/**
* Sets the character used for percent sign. Different for Arabic, etc.
*
* @param percent the character used for percent sign
*/
public void setPercent(char percent) {
this.percent = percent;
this.percentText = Character.toString(percent);
}
/**
* Gets the string used for percent sign. Different for Arabic, etc.
*
* @return the string used for percent sign
* @since 13
*/
String getPercentText() {
return percentText;
}
/**
* Sets the string used for percent sign. Different for Arabic, etc.
*
* Setting the {@code percentText} affects the return value of
* {@link #getPercent()}, in which the first non-format character of
* {@code percentText} is returned.
*
* @param percentText the string used for percent sign
* @throws NullPointerException if {@code percentText} is null
* @throws IllegalArgumentException if {@code percentText} is an empty string
* @see #getPercent()
* @see #getPercentText()
* @since 13
*/
void setPercentText(String percentText) {
Objects.requireNonNull(percentText);
if (percentText.isEmpty()) {
throw new IllegalArgumentException("Empty argument string");
}
this.percentText = percentText;
this.percent = findNonFormatChar(percentText, '%');
}
/**
* Gets the character used for a digit in a pattern.
*
* @return the character used for a digit in a pattern
*/
public char getDigit() {
return digit;
}
/**
* Sets the character used for a digit in a pattern.
*
* @param digit the character used for a digit in a pattern
*/
public void setDigit(char digit) {
this.digit = digit;
}
/**
* Gets the character used to separate positive and negative subpatterns
* in a pattern.
*
* @return the pattern separator
*/
public char getPatternSeparator() {
return patternSeparator;
}
/**
* Sets the character used to separate positive and negative subpatterns
* in a pattern.
*
* @param patternSeparator the pattern separator
*/
public void setPatternSeparator(char patternSeparator) {
this.patternSeparator = patternSeparator;
}
/**
* Gets the string used to represent infinity. Almost always left
* unchanged.
*
* @return the string representing infinity
*/
public String getInfinity() {
return infinity;
}
/**
* Sets the string used to represent infinity. Almost always left
* unchanged.
*
* @param infinity the string representing infinity
*/
public void setInfinity(String infinity) {
this.infinity = infinity;
}
/**
* Gets the string used to represent "not a number". Almost always left
* unchanged.
*
* @return the string representing "not a number"
*/
public String getNaN() {
return NaN;
}
/**
* Sets the string used to represent "not a number". Almost always left
* unchanged.
*
* @param NaN the string representing "not a number"
*/
public void setNaN(String NaN) {
this.NaN = NaN;
}
/**
* 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.
*
* @return the character representing minus sign
*/
public char getMinusSign() {
return 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.
*
* @param minusSign the character representing minus sign
*/
public void setMinusSign(char minusSign) {
this.minusSign = minusSign;
this.minusSignText = Character.toString(minusSign);
}
/**
* Gets the string used to represent minus sign. If no explicit
* negative format is specified, one is formed by prefixing
* minusSignText to the positive format.
*
* @return the string representing minus sign
* @since 13
*/
String getMinusSignText() {
return minusSignText;
}
/**
* Sets the string used to represent minus sign. If no explicit
* negative format is specified, one is formed by prefixing
* minusSignText to the positive format.
*
* Setting the {@code minusSignText} affects the return value of
* {@link #getMinusSign()}, in which the first non-format character of
* {@code minusSignText} is returned.
*
* @param minusSignText the character representing minus sign
* @throws NullPointerException if {@code minusSignText} is null
* @throws IllegalArgumentException if {@code minusSignText} is an
* empty string
* @see #getMinusSign()
* @see #getMinusSignText()
* @since 13
*/
void setMinusSignText(String minusSignText) {
Objects.requireNonNull(minusSignText);
if (minusSignText.isEmpty()) {
throw new IllegalArgumentException("Empty argument string");
}
this.minusSignText = minusSignText;
this.minusSign = findNonFormatChar(minusSignText, '-');
}
/**
* Returns the currency symbol for the currency of these
* DecimalFormatSymbols in their locale.
*
* @return the currency symbol
* @since 1.2
*/
public String getCurrencySymbol()
{
initializeCurrency(locale);
return currencySymbol;
}
/**
* Sets the currency symbol for the currency of these
* DecimalFormatSymbols in their locale.
*
* @param currency the currency symbol
* @since 1.2
*/
public void setCurrencySymbol(String currency)
{
initializeCurrency(locale);
currencySymbol = currency;
}
/**
* Returns the ISO 4217 currency code of the currency of these
* DecimalFormatSymbols.
*
* @return the currency code
* @since 1.2
*/
public String getInternationalCurrencySymbol()
{
initializeCurrency(locale);
return intlCurrencySymbol;
}
/**
* Sets the ISO 4217 currency code of the currency of these
* DecimalFormatSymbols.
* If the currency code is valid (as defined by
* {@link java.util.Currency#getInstance(java.lang.String) 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.
*
* @param currencyCode the currency code
* @see #setCurrency
* @see #setCurrencySymbol
* @since 1.2
*/
public void setInternationalCurrencySymbol(String currencyCode)
{
initializeCurrency(locale);
intlCurrencySymbol = currencyCode;
currency = null;
if (currencyCode != null) {
try {
currency = Currency.getInstance(currencyCode);
currencySymbol = currency.getSymbol();
} catch (IllegalArgumentException e) {
}
}
}
/**
* 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.
*
* @return the currency used, or null
* @since 1.4
*/
public Currency getCurrency() {
initializeCurrency(locale);
return 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.
*
* @param currency the new currency to be used
* @exception NullPointerException if {@code currency} is null
* @since 1.4
* @see #setCurrencySymbol
* @see #setInternationalCurrencySymbol
*/
public void setCurrency(Currency currency) {
if (currency == null) {
throw new NullPointerException();
}
initializeCurrency(locale);
this.currency = currency;
intlCurrencySymbol = currency.getCurrencyCode();
currencySymbol = currency.getSymbol(locale);
}
/**
* Returns the monetary decimal separator.
*
* @return the monetary decimal separator
* @since 1.2
*/
public char getMonetaryDecimalSeparator()
{
return monetarySeparator;
}
/**
* Sets the monetary decimal separator.
*
* @param sep the monetary decimal separator
* @since 1.2
*/
public void setMonetaryDecimalSeparator(char sep)
{
monetarySeparator = sep;
}
//------------------------------------------------------------
// BEGIN Package Private methods ... to be made public later
//------------------------------------------------------------
/**
* Returns the character used to separate the mantissa from the exponent.
*/
char getExponentialSymbol()
{
return exponential;
}
/**
* Returns the string used to separate the mantissa from the exponent.
* Examples: "x10^" for 1.23x10^4, "E" for 1.23E4.
*
* @return the exponent separator string
* @see #setExponentSeparator(java.lang.String)
* @since 1.6
*/
public String getExponentSeparator()
{
return exponentialSeparator;
}
/**
* Sets the character used to separate the mantissa from the exponent.
*/
void setExponentialSymbol(char exp)
{
exponential = exp;
}
/**
* Sets the string used to separate the mantissa from the exponent.
* Examples: "x10^" for 1.23x10^4, "E" for 1.23E4.
*
* @param exp the exponent separator string
* @exception NullPointerException if {@code exp} is null
* @see #getExponentSeparator()
* @since 1.6
*/
public void setExponentSeparator(String exp)
{
if (exp == null) {
throw new NullPointerException();
}
exponentialSeparator = exp;
}
//------------------------------------------------------------
// END Package Private methods ... to be made public later
//------------------------------------------------------------
/**
* Standard override.
*/
@Override
public Object clone() {
try {
return (DecimalFormatSymbols)super.clone();
// other fields are bit-copied
} catch (CloneNotSupportedException e) {
throw new InternalError(e);
}
}
/**
* Override equals.
*/
@Override
public boolean equals(Object obj) {
if (obj == null) return false;
if (this == obj) return true;
if (getClass() != obj.getClass()) return false;
DecimalFormatSymbols other = (DecimalFormatSymbols) obj;
return (zeroDigit == other.zeroDigit &&
groupingSeparator == other.groupingSeparator &&
decimalSeparator == other.decimalSeparator &&
percent == other.percent &&
percentText.equals(other.percentText) &&
perMill == other.perMill &&
perMillText.equals(other.perMillText) &&
digit == other.digit &&
minusSign == other.minusSign &&
minusSignText.equals(other.minusSignText) &&
patternSeparator == other.patternSeparator &&
infinity.equals(other.infinity) &&
NaN.equals(other.NaN) &&
getCurrencySymbol().equals(other.getCurrencySymbol()) && // possible currency init occurs here
intlCurrencySymbol.equals(other.intlCurrencySymbol) &&
currency == other.currency &&
monetarySeparator == other.monetarySeparator &&
exponentialSeparator.equals(other.exponentialSeparator) &&
locale.equals(other.locale));
}
/**
* Override hashCode.
*/
@Override
public int hashCode() {
int result = zeroDigit;
result = result * 37 + groupingSeparator;
result = result * 37 + decimalSeparator;
return result;
}
/**
* Initializes the symbols from the FormatData resource bundle.
*/
private void initialize( Locale locale ) {
this.locale = locale;
// check for region override
Locale override = locale.getUnicodeLocaleType("nu") == null ?
CalendarDataUtility.findRegionOverride(locale) :
locale;
// get resource bundle data
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(DecimalFormatSymbolsProvider.class, override);
// Avoid potential recursions
if (!(adapter instanceof ResourceBundleBasedAdapter)) {
adapter = LocaleProviderAdapter.getResourceBundleBased();
}
Object[] data = adapter.getLocaleResources(override).getDecimalFormatSymbolsData();
String[] numberElements = (String[]) data[0];
decimalSeparator = numberElements[0].charAt(0);
groupingSeparator = numberElements[1].charAt(0);
patternSeparator = numberElements[2].charAt(0);
percentText = numberElements[3];
percent = findNonFormatChar(percentText, '%');
zeroDigit = numberElements[4].charAt(0); //different for Arabic,etc.
digit = numberElements[5].charAt(0);
minusSignText = numberElements[6];
minusSign = findNonFormatChar(minusSignText, '-');
exponential = numberElements[7].charAt(0);
exponentialSeparator = numberElements[7]; //string representation new since 1.6
perMillText = numberElements[8];
perMill = findNonFormatChar(perMillText, '\u2030');
infinity = numberElements[9];
NaN = numberElements[10];
// maybe filled with previously cached values, or null.
intlCurrencySymbol = (String) data[1];
currencySymbol = (String) data[2];
// Currently the monetary decimal separator is the same as the
// standard decimal separator for all locales that we support.
// If that changes, add a new entry to NumberElements.
monetarySeparator = decimalSeparator;
}
/**
* Obtains non-format single character from String
*/
private char findNonFormatChar(String src, char defChar) {
return (char)src.chars()
.filter(c -> Character.getType(c) != Character.FORMAT)
.findFirst()
.orElse(defChar);
}
/**
* Lazy initialization for currency related fields
*/
private void initializeCurrency(Locale locale) {
if (currencyInitialized) {
return;
}
// Try to obtain the currency used in the locale's country.
// Check for empty country string separately because it's a valid
// country ID for Locale (and used for the C locale), but not a valid
// ISO 3166 country code, and exceptions are expensive.
if (!locale.getCountry().isEmpty()) {
try {
currency = Currency.getInstance(locale);
} catch (IllegalArgumentException e) {
// use default values below for compatibility
}
}
if (currency != null) {
// get resource bundle data
LocaleProviderAdapter adapter =
LocaleProviderAdapter.getAdapter(DecimalFormatSymbolsProvider.class, locale);
// Avoid potential recursions
if (!(adapter instanceof ResourceBundleBasedAdapter)) {
adapter = LocaleProviderAdapter.getResourceBundleBased();
}
Object[] data = adapter.getLocaleResources(locale).getDecimalFormatSymbolsData();
intlCurrencySymbol = currency.getCurrencyCode();
if (data[1] != null && data[1] == intlCurrencySymbol) {
currencySymbol = (String) data[2];
} else {
currencySymbol = currency.getSymbol(locale);
data[1] = intlCurrencySymbol;
data[2] = currencySymbol;
}
} else {
// default values
intlCurrencySymbol = "XXX";
try {
currency = Currency.getInstance(intlCurrencySymbol);
} catch (IllegalArgumentException e) {
}
currencySymbol = "\u00A4";
}
currencyInitialized = true;
}
/**
* Reads the default serializable fields, provides default values for objects
* in older serial versions, and initializes non-serializable fields.
* If {@code serialVersionOnStream}
* is less than 1, initializes {@code monetarySeparator} to be
* the same as {@code decimalSeparator} and {@code exponential}
* to be 'E'.
* If {@code serialVersionOnStream} is less than 2,
* initializes {@code locale}to the root locale, and initializes
* If {@code serialVersionOnStream} is less than 3, it initializes
* {@code exponentialSeparator} using {@code exponential}.
* If {@code serialVersionOnStream} is less than 4, it initializes
* {@code perMillText}, {@code percentText}, and
* {@code minusSignText} using {@code perMill}, {@code percent}, and
* {@code minusSign} respectively.
* Sets {@code serialVersionOnStream} back to the maximum allowed value so that
* default serialization will work properly if this object is streamed out again.
* Initializes the currency from the intlCurrencySymbol field.
*
* @throws InvalidObjectException if {@code char} and {@code String}
* representations of either percent, per mille, and/or minus sign disagree.
* @since 1.1.6
*/
private void readObject(ObjectInputStream stream)
throws IOException, ClassNotFoundException {
stream.defaultReadObject();
if (serialVersionOnStream < 1) {
// Didn't have monetarySeparator or exponential field;
// use defaults.
monetarySeparator = decimalSeparator;
exponential = 'E';
}
if (serialVersionOnStream < 2) {
// didn't have locale; use root locale
locale = Locale.ROOT;
}
if (serialVersionOnStream < 3) {
// didn't have exponentialSeparator. Create one using exponential
exponentialSeparator = Character.toString(exponential);
}
if (serialVersionOnStream < 4) {
// didn't have perMillText, percentText, and minusSignText.
// Create one using corresponding char variations.
perMillText = Character.toString(perMill);
percentText = Character.toString(percent);
minusSignText = Character.toString(minusSign);
} else {
// Check whether char and text fields agree
if (findNonFormatChar(perMillText, '\uFFFF') != perMill ||
findNonFormatChar(percentText, '\uFFFF') != percent ||
findNonFormatChar(minusSignText, '\uFFFF') != minusSign) {
throw new InvalidObjectException(
"'char' and 'String' representations of either percent, " +
"per mille, and/or minus sign disagree.");
}
}
serialVersionOnStream = currentSerialVersion;
if (intlCurrencySymbol != null) {
try {
currency = Currency.getInstance(intlCurrencySymbol);
} catch (IllegalArgumentException e) {
}
currencyInitialized = true;
}
}
/**
* Character used for zero.
*
* @serial
* @see #getZeroDigit
*/
private char zeroDigit;
/**
* Character used for thousands separator.
*
* @serial
* @see #getGroupingSeparator
*/
private char groupingSeparator;
/**
* Character used for decimal sign.
*
* @serial
* @see #getDecimalSeparator
*/
private char decimalSeparator;
/**
* Character used for per mille sign.
*
* @serial
* @see #getPerMill
*/
private char perMill;
/**
* Character used for percent sign.
* @serial
* @see #getPercent
*/
private char percent;
/**
* Character used for a digit in a pattern.
*
* @serial
* @see #getDigit
*/
private char digit;
/**
* Character used to separate positive and negative subpatterns
* in a pattern.
*
* @serial
* @see #getPatternSeparator
*/
private char patternSeparator;
/**
* String used to represent infinity.
* @serial
* @see #getInfinity
*/
private String infinity;
/**
* String used to represent "not a number".
* @serial
* @see #getNaN
*/
private String NaN;
/**
* Character used to represent minus sign.
* @serial
* @see #getMinusSign
*/
private char minusSign;
/**
* String denoting the local currency, e.g. "$".
* @serial
* @see #getCurrencySymbol
*/
private String currencySymbol;
/**
* ISO 4217 currency code denoting the local currency, e.g. "USD".
* @serial
* @see #getInternationalCurrencySymbol
*/
private String intlCurrencySymbol;
/**
* The decimal separator used when formatting currency values.
* @serial
* @since 1.1.6
* @see #getMonetaryDecimalSeparator
*/
private char monetarySeparator; // Field new in JDK 1.1.6
/**
* The character used to distinguish the exponent in a number formatted
* in exponential notation, e.g. 'E' for a number such as "1.23E45".
* * Note that the public API provides no way to set this field, * even though it is supported by the implementation and the stream format. * The intent is that this will be added to the API in the future. * * @serial * @since 1.1.6 */ private char exponential; // Field new in JDK 1.1.6 /** * The string used to separate the mantissa from the exponent. * Examples: "x10^" for 1.23x10^4, "E" for 1.23E4. *
* If both {@code exponential} and {@code exponentialSeparator} * exist, this {@code exponentialSeparator} has the precedence. * * @serial * @since 1.6 */ private String exponentialSeparator; // Field new in JDK 1.6 /** * The locale of these currency format symbols. * * @serial * @since 1.4 */ private Locale locale; /** * String representation of per mille sign, which may include * formatting characters, such as BiDi control characters. * The first non-format character of this string is the same as * {@code perMill}. * * @serial * @since 13 */ private String perMillText; /** * String representation of percent sign, which may include * formatting characters, such as BiDi control characters. * The first non-format character of this string is the same as * {@code percent}. * * @serial * @since 13 */ private String percentText; /** * String representation of minus sign, which may include * formatting characters, such as BiDi control characters. * The first non-format character of this string is the same as * {@code minusSign}. * * @serial * @since 13 */ private String minusSignText; // currency; only the ISO code is serialized. private transient Currency currency; private transient volatile boolean currencyInitialized; // Proclaim JDK 1.1 FCS compatibility static final long serialVersionUID = 5772796243397350300L; // The internal serial version which says which version was written // - 0 (default) for version up to JDK 1.1.5 // - 1 for version from JDK 1.1.6, which includes two new fields: // monetarySeparator and exponential. // - 2 for version from J2SE 1.4, which includes locale field. // - 3 for version from J2SE 1.6, which includes exponentialSeparator field. // - 4 for version from Java SE 13, which includes perMillText, percentText, // and minusSignText field. private static final int currentSerialVersion = 4; /** * Describes the version of {@code DecimalFormatSymbols} present on the stream. * Possible values are: *