java.util.Currency#getSymbol ( )源码实例Demo

public void test_nullLocales() {
    Currency currency = Currency.getInstance(Locale.getDefault());
    try {
        currency.getSymbol(null);
        fail();
    } catch (NullPointerException expected) {}
}
 

private static String currencySymbol(@Nonnull final String currencyCode) {
    try {
        final Currency currency = Currency.getInstance(currencyCode);
        return currency.getSymbol();
    } catch (final IllegalArgumentException x) {
        return currencyCode;
    }
}
 

public void testSetCurrency_symbolOrigin() {
    Currency currency = Currency.getInstance("CNY");
    Locale locale1 = Locale.CHINA;
    Locale locale2 = Locale.US;
    String locale1Symbol = currency.getSymbol(locale1);
    String locale2Symbol = currency.getSymbol(locale2);
    // This test only works if we can tell where the symbol came from, which requires they are
    // different across the two locales chosen.
    assertFalse(locale1Symbol.equals(locale2Symbol));

    Locale originalLocale = Locale.getDefault();
    try {
        Locale.setDefault(locale1);
        String amountDefaultLocale1 =
                formatArbitraryCurrencyAmountInLocale(currency, locale2);

        Locale.setDefault(locale2);
        String amountDefaultLocale2 =
                formatArbitraryCurrencyAmountInLocale(currency, locale2);

        // This used to fail because Currency.getSymbol() was used without providing the
        // format's locale.
        assertEquals(amountDefaultLocale1, amountDefaultLocale2);
    } finally {
        Locale.setDefault(originalLocale);
    }
}
 

/**
 * Gets currency symbol that has been decided on for Squarespace money design standard. If a standard does not exist
 * for the currency, this falls back on Java's symbol formatting.
 *
 * @param locale locale
 * @param currency currency
 * @return the appropriate currency symbol
 */
private static String getCurrencySymbol(Locale locale, Currency currency) {
  String currencySymbol = CURRENCY_SYMBOLS.get(currency.getCurrencyCode());
  if (currencySymbol == null) {
    currencySymbol = currency.getSymbol(locale);
  }

  return currencySymbol;
}
 

public void setCurrency(Currency currency) {
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * This method tries to evaluate the localized symbol name for a
 * {@link CurrencyUnit}. It uses {@link Currency#getSymbol(Locale)} if the
 * given currency code maps to a JDK {@link Currency} instance.
 * <p>
 * If not found {@code currency.getCurrencyCode()} is returned.
 *
 * @param currency The currency, not {@code null}
 * @return the formatted currency symbol.
 */
private String getCurrencySymbol(CurrencyUnit currency) {
    Currency jdkCurrency = getCurrency(currency.getCurrencyCode());
    if (Objects.nonNull(jdkCurrency)) {
        return jdkCurrency.getSymbol(locale);
    }
    return currency.getCurrencyCode();
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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
 * @throws    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);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
    //cachedIcuDFS = null;
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}
 

/**
 * 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</code> is null
 * @since 1.4
 * @see #setCurrencySymbol
 * @see #setInternationalCurrencySymbol
 */
public void setCurrency(Currency currency) {
    if (currency == null) {
        throw new NullPointerException();
    }
    this.currency = currency;
    intlCurrencySymbol = currency.getCurrencyCode();
    currencySymbol = currency.getSymbol(locale);
}