Java Utililty Methods Decimal Format

if (digit < 0)
    return basicValue;
StringBuilder sb = new StringBuilder("#");
if (digit > 0) {
    sb.append("0.");
    for (int i = 0; i < digit; i++) {
        sb.append("0");
DecimalFormat format = new DecimalFormat(sb.toString());
return Double.parseDouble(format.format(basicValue));

NumberFormat nf = NumberFormat.getNumberInstance(loc);
return (DecimalFormat) nf;

return mDecFmt;

return s_decimalFormat.get();

if (decimalFormat == null) {
    decimalFormat = (DecimalFormat) NumberFormat.getInstance(Locale.ENGLISH);
    decimalFormat.setParseBigDecimal(true);
return decimalFormat;

if (decimalPlaces < 0) {
    throw new IllegalArgumentException("decimalPlaces must be non-negative");
final DecimalFormatSymbols decimalFormatSymbols = new DecimalFormatSymbols();
decimalFormatSymbols.setDecimalSeparator('.');
final StringBuilder builder = new StringBuilder();
builder.append("#0");
if (decimalPlaces > 0) {
...

StringBuffer sb = new StringBuffer();
sb.append("#,###,##0.");
for (int i = 0; i < decimalPlaces; i++) {
    sb.append('0');
DecimalFormat df = (DecimalFormat) DecimalFormat.getInstance(locale);
df.applyPattern(sb.toString());
return df;
...

if (precision <= 0) {
    return integerFormat;
char[] chars = new char[precision];
Arrays.fill(chars, '0');
String format = MessageFormat.format(formatTemplate, new String(chars));
return new DecimalFormat(format);

int absPrecision = Math.abs(precision);
NumberFormat numberFormat = decimalFormatCacheMap.get(absPrecision);
if (numberFormat == null) {
    numberFormat = new DecimalFormat("0"); 
    numberFormat.setMinimumFractionDigits(absPrecision);
    numberFormat.setMaximumFractionDigits(absPrecision);
    decimalFormatCacheMap.put(absPrecision, numberFormat);
return numberFormat;

String s = force + ".";
for (int i = 0; i < precision; i++)
    s += force;
return new DecimalFormat(s);