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

StringtoDecimalFormat(BigDecimal value)
to Decimal Format 
return value != null ? DECIMAL_FORMAT.format(value) : "$0.00";
StringtoFormattedNumber(Object value)
to Formatted Number 
if (value == null) {
    return "";
if (value instanceof Double || value instanceof Float) {
    return DEFAULT_DECIMAL_FORMATTER.format(value);
return value.toString();
NumbertoNumber(String numString, String numFormatPattern)
Converts a String to a Number, using the specified pattern. 
Number number = null;
if (numFormatPattern == null) {
    numFormatPattern = "######.##";
synchronized (numberFormat) {
    numberFormat.applyPattern(numFormatPattern);
    number = numberFormat.parse(numString);
return number;
StringtoNumberFormat(String input)
to Number Format 
if (input.indexOf(".") != -1)
    return NumberFormat.getInstance().format((new java.lang.Double(input)).doubleValue());
else {
    return NumberFormat.getInstance().format((new java.lang.Long(input)).longValue());
StringtoString(int[] a, String separator, NumberFormat formatter)
to String 
StringBuffer result = new StringBuffer();
if (formatter != null) {
    if (a.length > 0)
        result.append(formatter.format(a[0]));
    for (int i = 1; i < a.length; i++)
        result.append(separator).append(formatter.format(a[i]));
} else {
    if (a.length > 0)
...
StringtoStringFormatted(byte[] bytes)
Format a byte array with a numbered header. 
StringBuilder sb = new StringBuilder();
DecimalFormat df = new DecimalFormat("00 | ");
if (bytes != null) {
    int len = bytes.length;
    for (int i = 0; i < bytes.length; i++) {
        sb.append("-----");
    sb.append("\n|");
...
doubleunformatAmount(String formattedNumber)
unformats a formatted number to be a double again 
NumberFormat numberFormatter = NumberFormat.getCurrencyInstance();
Number number = null;
try {
    number = numberFormatter.parse(formattedNumber);
} catch (ParseException e) {
    e.printStackTrace();
double unformattedNumber = number.doubleValue();
...
BigDecimalunformatingDecimalNumber(String cadena, Locale locale, int maxIntPart, int maxFloatPart)
Translate an String to BigDecimal number. 
BigDecimal result = null;
NumberFormat numberFormat = settingUpValuesOfFormat(locale, maxIntPart, maxFloatPart);
if (null != cadena && !"".equals(cadena.trim())) {
    try {
        Number number = numberFormat.parse(cadena);
        result = new BigDecimal(Double.toString(number.doubleValue()));
    } catch (ParseException e) {
return result;