Java Utililty Methods Double to String

List of utility methods to do Double to String

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Description

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

Method

StringdoubleToString(double d)
Produce a string from a double. 
if (Double.isInfinite(d) || Double.isNaN(d)) {
    return "null";
String s = Double.toString(d);
if (s.indexOf('.') > 0 && s.indexOf('e') < 0 && s.indexOf('E') < 0) {
    while (s.endsWith("0")) {
        s = s.substring(0, s.length() - 1);
    if (s.endsWith(".")) {
        s = s.substring(0, s.length() - 1);
return s;
StringdoubleToString(double d, int fNumber)
Converts the double value to locale-independent string representation. 
if (fNumber < 0)
    fNumber = 0;
String value = Double.toString(d);
int ePos = value.indexOf('E');
int dotPos = value.indexOf('.');
if (ePos != -1) {
    String e = value.substring(ePos + 1);
    int exp = Integer.parseInt(e);
...
StringdoubleToString(double d, int sigDigs)
double To String 
String s = Double.toString(d);
if (Math.abs(d) < 10) {
    int pos = s.indexOf(".");
    if (pos != -1) {
        s = s.substring(0, Math.min(pos + 3, s.length()));
return s;
...
StringdoubleToString(Double doub)
Convierte un doble a cadena 
if (doub == null)
    return "";
else
    return String.valueOf(doub);
StringdoubleToString(double inValue, int precision, boolean useComma)
double To String 
boolean trailingZero;
double absval = Math.abs(inValue); 
if (precision < 0) {
    precision = -precision;
    trailingZero = false;
} else
    trailingZero = true;
String signStr = "";
...
StringdoubleToString(double val)
convert a double to a string 
return Double.toString(val);
StringdoubleToString(double val, int digits)
Returns a String containing the value of the double with (at most) the specified number of digits (rounded if needed). 
double d = Math.pow(10, digits);
val *= d; 
val = Math.round(val);
val /= d;
return Double.toString(val);
StringdoubleToString(double value, int afterDecimalPoint)
Rounds a double and converts it into String. 
StringBuffer stringBuffer;
double temp;
int dotPosition;
long precisionValue;
temp = value * Math.pow(10.0, afterDecimalPoint);
if (Math.abs(temp) < Long.MAX_VALUE) {
    precisionValue = (temp > 0) ? (long) (temp + 0.5) : -(long) (Math.abs(temp) + 0.5);
    if (precisionValue == 0) {
...
StringdoubleToString(double value, int afterDecimalPoint)
double To String 
StringBuffer stringBuffer;
double temp;
int dotPosition;
long precisionValue;
temp = value * Math.pow(10.0, afterDecimalPoint);
if (Math.abs(temp) < Long.MAX_VALUE) {
    precisionValue = (temp > 0) ? (long) (temp + 0.5) : -(long) (Math.abs(temp) + 0.5);
    if (precisionValue == 0)
...
String[]doubleToString(double[] values)
double To String 
if (values == null) {
    return null;
String[] results = new String[values.length];
for (int i = 0; i < values.length; i++) {
    results[i] = String.valueOf(values[i]);
return results;
...