Java Utililty Methods Number Format Pattern

List of utility methods to do Number Format Pattern

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Description

The list of methods to do Number Format Pattern are organized into topic(s).

Method

voidnormalizeNumberFormat(NumberFormat numberFormat, int scale, int precision)
According to the 1.7.7 spec If a logical type is invalid, for example a decimal with scale greater than its precision,then implementations should ignore the logical type and use the underlying Avro type. 
if (scale < precision) {
    numberFormat.setMaximumIntegerDigits(precision);
    numberFormat.setMaximumFractionDigits(scale);
    numberFormat.setMinimumFractionDigits(scale);
StringobjectToString(Object obj, DecimalFormat fmt)
object To String 
fmt.setDecimalSeparatorAlwaysShown(false);
if (obj instanceof Double)
    return fmt.format(((Double) obj).doubleValue());
if (obj instanceof Long)
    return fmt.format(((Long) obj).longValue());
else
    return obj.toString();
voidprint(float[] array, NumberFormat nf)
Prints the contents of the float array on standard out. 
System.out.print("[");
for (int i = 0; i < array.length; i++) {
    System.out.print(" " + nf.format(array[i]));
System.out.println(" ]");
voidresetDecimalFormat()
reset Decimal Format 
decimalFormat = new DecimalFormat("#.#####");
voidresetDecimalFormatByLocale(Locale locale)
reset Decimal Format By Locale 
df = (DecimalFormat) NumberFormat.getInstance(locale);
NumberroundNumber(Number number, DecimalFormat format)
round Number 
Number formattedNumber = null;
try {
    formattedNumber = format.parse(format.format(number));
} catch (ParseException ex) {
return formattedNumber;
StringstringFormat(BigDecimal value)
string Format 
DecimalFormat df = new DecimalFormat("#0.00");
return df.format(value);
StringstringToReais(String unformatted, boolean comSimbolo)
string To Reais 
DecimalFormatSymbols symbols = new DecimalFormatSymbols(new Locale("pt", "BR"));
symbols.setGroupingSeparator('.');
symbols.setDecimalSeparator(',');
if (!comSimbolo) {
    symbols.setCurrencySymbol("");
DecimalFormat decimalFormat = (DecimalFormat) NumberFormat.getCurrencyInstance(new Locale("pt", "BR"));
decimalFormat.setDecimalFormatSymbols(symbols);
...
StringstrToFormatedNumber(String str)
strToFormatedNumber 
long value = Long.parseLong(str);
NumberFormat FORMAT = NumberFormat.getInstance();
FORMAT.setGroupingUsed(true);
return FORMAT.format(value);
StringtoAccountantFormat(String str, int scale)
to Accountant Format 
if (str != null) {
    String temp = "#,###,###,###,##0.";
    for (int i = 0; i < scale; i++) {
        temp += "0";
    return new java.text.DecimalFormat(temp).format(Double.valueOf(str));
} else {
    return "0.00";
...