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Java Introduction to Functional Programming Functional Programming Fundamentals Compose Price Conversion Functions

Zachary Berry
Zachary Berry
5,997 Points
Posted by Zachary Berry
Zachary Berry
5,997 Points

Expected 1,00 (Euro) bu the actual is *euro sign* 1,00 (Euro). I am confused

public static Function<Integer, String> getArgentinaPriceConverter() {

    Locale argLocale = Locale.forLanguageTag("es-AR");
    // This fluctuates and is hardcoded temporarily
    BigDecimal argPesoToUsdRate = new BigDecimal("15.48");
    Function<Integer, BigDecimal> usdToArgentinePesoConverter =
      usd -> argPesoToUsdRate.multiply(new BigDecimal(usd));

    Function<BigDecimal, String> argentineCurrencyFormatter = price -> {
      Currency currentCurrency = Currency.getInstance(argLocale);
      NumberFormat currencyFormatter =
        NumberFormat.getCurrencyInstance(argLocale);
      return String.format("%s (%s)",
        currencyFormatter.format(price),
        currentCurrency.getDisplayName()
      );
    };
    return usdToArgentinePesoConverter.andThen(argentineCurrencyFormatter);
  }

  public static Function<Integer, String> createPriceConverter(Locale locale, BigDecimal usdRate) {
    // TODO:  Examine the hardcoded `getArgentinaPriceConverter` method
    // TODO:  Using the arguments passed into this method return a function that will work for any locale and rate
    return usdPrice -> String.format("%s %s", NumberFormat.getCurrencyInstance(locale).
      format(usdRate.multiply(BigDecimal.valueOf(usdPrice))), Currency.getInstance(locale).getDisplayName());
  }
Zachary Berry
Zachary Berry
5,997 Points
Zachary Berry
Zachary Berry
5,997 Points

I apologize for the poor formatting. The code that I wrote is at the bottom.