java.util

Class Currency

Inhoudsopgave
  • All Implemented Interfaces:
    Serializable

    public final class Currency
extends Object
implements Serializable
    Represents a currency. Currencies are identified by their ISO 4217 currency codes. Visit the ISO web site for more information, including a table of currency codes.

    The class is designed so that there's never more than one Currency instance for any given currency. Therefore, there's no public constructor. You obtain a Currency instance using the getInstance methods.

    Users can supersede the Java runtime currency data by creating a properties file named <JAVA_HOME>/lib/currency.properties. The contents of the properties file are key/value pairs of the ISO 3166 country codes and the ISO 4217 currency data respectively. The value part consists of three ISO 4217 values of a currency, i.e., an alphabetic code, a numeric code, and a minor unit. Those three ISO 4217 values are separated by commas. The lines which start with '#'s are considered comment lines. For example,

    #Sample currency properties
    JP=JPZ,999,0

    will supersede the currency data for Japan.

    Since:
    1.4
    See Also:
    Serialized Form

    • Method Detail

      • getInstance

        public static Currency getInstance(String currencyCode)
        Returns the Currency instance for the given currency code.
        Parameters:
        currencyCode - the ISO 4217 code of the currency
        Returns:
        the Currency instance for the given currency code
        Throws:
        NullPointerException - if currencyCode is null
        IllegalArgumentException - if currencyCode is not a supported ISO 4217 code.

      • getInstance

        public static Currency getInstance(Locale locale)
        Returns the Currency instance for the country of the given locale. The language and variant components of the locale are ignored. The result may vary over time, as countries change their currencies. For example, for the original member countries of the European Monetary Union, the method returns the old national currencies until December 31, 2001, and the Euro from January 1, 2002, local time of the respective countries.

        The method returns null for territories that don't have a currency, such as Antarctica.

        Parameters:
        locale - the locale for whose country a Currency instance is needed
        Returns:
        the Currency instance for the country of the given locale, or null
        Throws:
        NullPointerException - if locale or its country code is null
        IllegalArgumentException - if the country of the given locale is not a supported ISO 3166 country code.

      • getAvailableCurrencies

        public static Set<Currency> getAvailableCurrencies()
        Gets the set of available currencies. The returned set of currencies contains all of the available currencies, which may include currencies that represent obsolete ISO 4217 codes. The set can be modified without affecting the available currencies in the runtime.
        Returns:
        the set of available currencies. If there is no currency available in the runtime, the returned set is empty.
        Since:
        1.7

      • getCurrencyCode

        public String getCurrencyCode()
        Gets the ISO 4217 currency code of this currency.
        Returns:
        the ISO 4217 currency code of this currency.

      • getSymbol

        public String getSymbol()
        Gets the symbol of this currency for the default locale. For example, for the US Dollar, the symbol is "$" if the default locale is the US, while for other locales it may be "US$". If no symbol can be determined, the ISO 4217 currency code is returned.
        Returns:
        the symbol of this currency for the default locale

      • getSymbol

        public String getSymbol(Locale locale)
        Gets the symbol of this currency for the specified locale. For example, for the US Dollar, the symbol is "$" if the specified locale is the US, while for other locales it may be "US$". If no symbol can be determined, the ISO 4217 currency code is returned.
        Parameters:
        locale - the locale for which a display name for this currency is needed
        Returns:
        the symbol of this currency for the specified locale
        Throws:
        NullPointerException - if locale is null

      • getDefaultFractionDigits

        public int getDefaultFractionDigits()
        Gets the default number of fraction digits used with this currency. For example, the default number of fraction digits for the Euro is 2, while for the Japanese Yen it's 0. In the case of pseudo-currencies, such as IMF Special Drawing Rights, -1 is returned.
        Returns:
        the default number of fraction digits used with this currency

      • getNumericCode

        public int getNumericCode()
        Returns the ISO 4217 numeric code of this currency.
        Returns:
        the ISO 4217 numeric code of this currency
        Since:
        1.7

      • getDisplayName

        public String getDisplayName()
        Gets the name that is suitable for displaying this currency for the default locale. If there is no suitable display name found for the default locale, the ISO 4217 currency code is returned.
        Returns:
        the display name of this currency for the default locale
        Since:
        1.7

      • getDisplayName

        public String getDisplayName(Locale locale)
        Gets the name that is suitable for displaying this currency for the specified locale. If there is no suitable display name found for the specified locale, the ISO 4217 currency code is returned.
        Parameters:
        locale - the locale for which a display name for this currency is needed
        Returns:
        the display name of this currency for the specified locale
        Throws:
        NullPointerException - if locale is null
        Since:
        1.7

      • toString

        public String toString()
        Returns the ISO 4217 currency code of this currency.
        Overrides:
        toString in class Object
        Returns:
        the ISO 4217 currency code of this currency

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Document heeft de 11/06/2005 gemaakt, de laatste keer de 04/03/2020 gewijzigd
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