Java Utililty Methods Double Number Format

List of utility methods to do Double Number Format

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Description

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

Method

StringformatDoubleWithPadding(String value, int length, char pad)
The total amount in 2 decimal places without decimal point with a leading zero.ie 12.00 = 1200 value = 000000146560 
String valueStr = value + "";
int diff = length - valueStr.length();
StringBuilder strBuilder = new StringBuilder();
if (diff > 0) {
    while (diff > -1) {
        diff--;
        strBuilder.append(pad);
    strBuilder.append(valueStr);
    valueStr = strBuilder.toString();
    valueStr = valueStr.substring(0, valueStr.indexOf('.'))
            + valueStr.substring(valueStr.indexOf('.') + 1, valueStr.length());
return valueStr;
DecimalFormatgetFormat(double d)
_more_ 
d = Math.abs(d);
if ((d > 10000) || (d == 0)) {
    return FORMATS[0];
if (d > 1000) {
    return FORMATS[1];
if (d > 100) {
...
DecimalFormatgetFormat(double value)
get Format 
DecimalFormat format;
if (value < 10) {
    format = new DecimalFormat("#.##");
} else if (value < 100) {
    format = new DecimalFormat("#.#");
} else {
    format = new DecimalFormat("#");
format.setRoundingMode(RoundingMode.HALF_UP);
return format;
StringgetFormatAmount(Double d)
get Format Amount 
if (d == null) {
    return "0.00";
DecimalFormat df = new DecimalFormat("0.00");
return df.format(d);
StringgetFormattedNumber(Double number, int decimals, Locale locale)
get Formatted Number 
NumberFormat nf = NumberFormat.getInstance(locale);
nf.setMaximumFractionDigits(decimals);
nf.setMinimumFractionDigits(decimals);
return nf.format(number);
StringgetFormattedString(double d, int numDecimalPlaces)
get Formatted String 
StringBuilder sb = new StringBuilder();
sb.append("##.");
for (int i = 0; i < numDecimalPlaces; i++)
    sb.append("#");
DecimalFormat df = new DecimalFormat(sb.toString());
return df.format(d);
StringgetFormattedTwoDecimal(double d)
get Formatted Two Decimal 
DecimalFormat df = new DecimalFormat("##.##");
return df.format(d);
StringgetFormattedValue(double argDoubleValue)
This method will convert double value into US Locale Currency value in String 
BigDecimal empClaims = new BigDecimal(argDoubleValue);
NumberFormat numFormat = NumberFormat.getCurrencyInstance(Locale.US);
String empFormatted = numFormat.format(empClaims);
return empFormatted;
StringgetTwoDecimalByDecimalFormat(double number)
get Two Decimal By Decimal Format 
String decimal = "";
java.text.DecimalFormat df = new java.text.DecimalFormat("#.##");
decimal = df.format(number);
return decimal;
StringgetValidString(Double value, DecimalFormat formatter)
get Valid String 
String str = "";
if (value == null || Double.isNaN(value))
    str = "NaN";
else
    str = formatter.format(value) + "";
return str;