Java Utililty Methods Parse Double

String parseDouble(Double data)
parse Double

NumberFormat nf = new DecimalFormat("#,###");
return nf.format(Math.round(data));

Double parseDouble(Object input)
DOC Zqin Comment method "parseDouble".

if (input != null) {
 DecimalFormat format = (DecimalFormat) DecimalFormat.getInstance(Locale.US);
 try {
 Number number = format.parse(input.toString());
 return number.doubleValue();
 } catch (ParseException e) {
 return Double.NaN;
return null;

Double parseDouble(String d)
parse Double

DecimalFormat format = new DecimalFormat("#.##");
return format.parse(d.toUpperCase().replace("+", "")).doubleValue();

double parseDouble(String inStr)
parse Double

try {
 NumberFormat nf = NumberFormat.getInstance(sLocale);
 Number n = nf.parse(inStr);
 return n.doubleValue();
} catch (ParseException e) {
 return Double.parseDouble(inStr);

double parseDouble(String s, Locale locale)
Parse a numeric string using the specified locale.

if (s == null || s.isEmpty()) {
 return Double.NaN;
try {
 return NumberFormat.getNumberInstance(locale).parse(s).doubleValue();
} catch (ParseException ex) {
 try {
 return NumberFormat.getNumberInstance(Locale.US).parse(s).doubleValue();
...

double parseDouble(String str)
parse Double

return parseDouble(str, Locale.getDefault());

Double parseDouble(String str)
parse Double

try {
 DecimalFormat df = new DecimalFormat("#,##0.0#");
 return Double.valueOf(String.valueOf(df.parseObject(str)));
} catch (Exception e) {
 return new Double(0.0);

double parseDouble(String stringValue)
parse Double

return parseNumber(stringValue).doubleValue();

double parseDouble(String value)
Parse a string containing a double with locale specific formatting e.g.

return Double.parseDouble(parsePrepare(value));

double ParseDoubleEx(String s, double value_if_fault)
Parse a string containing a double.

int pos, step;
double v;
String str, s1;
boolean ok, error;
char decimalseparator = new DecimalFormat().getDecimalFormatSymbols().getDecimalSeparator();
v = 0.0;
str = "";
s1 = s.trim();
...