Format Currency in ID

gistfile1.txt

/**
     * Return string formatted with dot separator and prepended with currency
     * symbol (IDR). By default will return Rp 0.
     *
     * @param defaultOutput Default string to return (with currency prefix) when error happen.
     */
    @NonNull
    public static final String formatCurrency(@Nullable BigDecimal input, @NonNull String defaultOutput) {
        if (input == null)
            return defaultOutput;
        try {
            BigDecimal display = input.setScale(2, RoundingMode.HALF_EVEN);
            NumberFormat nf = NumberFormat.getInstance(new Locale("id", "ID"));
            nf.setMinimumFractionDigits(0);
            nf.setMaximumFractionDigits(2);
            return BuildConfig.CURRENCY_STR + nf.format(display.doubleValue());

        } catch (Exception ex) {
            return defaultOutput;
        }
    }

    /**
     * Return string formatted with dot separator, fixed 2 digits decimal, and prepended with
     * currency symbol (IDR). By default will return Rp 0.
     */
    @NonNull
    public static final String formatCurrency2Digits(@Nullable String strInput) {
        String defaultOutput = BuildConfig.CURRENCY_STR + "0";

        if (strInput == null)
            return defaultOutput;
        try {
            BigDecimal bdInput = new BigDecimal(strInput);
            BigDecimal display = bdInput.setScale(2, RoundingMode.HALF_EVEN);

            NumberFormat nf = NumberFormat.getInstance(new Locale("id", "ID"));
            nf.setMinimumFractionDigits(2);
            nf.setMaximumFractionDigits(2);

            return BuildConfig.CURRENCY_STR + nf.format(display.doubleValue());

        } catch (Exception ex) {
            return defaultOutput;
        }
    }