Java Utililty Methods Double Array to String

String doubleArrayToString(double[] array)
Creates a string representation of the given array of type double[] (this representation can be parsed using the method parseDoubleArray).

StringBuilder sb = new StringBuilder();
sb.append("[");
for (double a : array) {
 sb.append(a).append(", ");
if (sb.lastIndexOf(", ") != -1)
 sb.delete(sb.lastIndexOf(", "), sb.length());
sb.append("]");
...

String doubleArrayToString(double[] descriptor, char separator)
Converts a double array descriptor to a string descriptor

String descriptorStr = "";
for (int i = 0; i < descriptor.length; i++) {
 descriptorStr += descriptor[i];
 if (i != (descriptor.length - 1)) {
 descriptorStr += separator;
return descriptorStr;
...

String[] doubleArrayToStringArray(final double[] line)
Converts an array of doubles into an array of Strings of those doubles.

String[] ret = new String[line.length];
for (int i = 0; i < line.length; i++) {
 ret[i] = "" + line[i];
return ret;