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Java Introduction to Functional Programming Functional Programming Fundamentals Higher Order Function for Price Conversion

Posted by My MICDS
My MICDS
20,571 Points

I know I've done the problem correctly, however, the test is seeing weird ASCII text at the end of each conversion.

for instance:

Expected: a string containing "1,00 (Euro)" but: was "1,00áÇ (Euro)"

and:

Expected: is "First is $1.00 (USD) which is $15,48 (Argentine Peso)" but: was "First is $1.00 (USD) which is $á15,48 (Argentine Peso)"

1 Answer

Ben Basty
Ben Basty
23,772 Points
Ben Basty
Ben Basty
23,772 Points

To resolve this error :
Expected: a string containing "1,00 (Euro)" but: was "1,00 € (Euro)" Here is how i resolved it.

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 -> {
      Currency currentCurrency = Currency.getInstance(locale);
      NumberFormat currencyFormatter = NumberFormat.getCurrencyInstance(locale);
      if (currencyFormatter instanceof DecimalFormat) {
        DecimalFormat df = (DecimalFormat) currencyFormatter;

        DecimalFormatSymbols dfs = df.getDecimalFormatSymbols();

        dfs.setCurrencySymbol("");

        df.setDecimalFormatSymbols(dfs);

        df.applyPattern(".00");

      }
      return String.format("%s (%s)", currencyFormatter.format(usdRate), currentCurrency.getDisplayName()
      );
    };
  }

And Don't forget to import 

import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;

To resolve this : Expected: is "First is $1.00 (USD) which is $15,48 (Argentine Peso)" but: was "First is $1.00 (USD) which is $ 15,48 (Argentine Peso)"

 public static String getPriceConversionForRecord(HousingRecord record,
                                                   Function<Integer, String> priceConverter) {
    NumberFormat usFormatter = NumberFormat.getCurrencyInstance(Locale.US);
    return String.format("%s is %s (USD) which is %s",
      record.getRegionName(),
      usFormatter.format(record.getCurrentHomeValueIndex()),
      priceConverter.apply(record.getCurrentHomeValueIndex())
    ).replaceAll("\u00a0", " ");