Java Utililty Methods CSV String Create

String csv(String separator, String... elements)
csv

if (elements.length == 0)
 return null;
StringBuilder sb = new StringBuilder(elements[0]);
for (int i = 1; i < elements.length; i++) {
 sb.append(separator).append(elements[i]);
return sb.toString();

String getCSV(Collection coll)
get CSV

StringBuffer sb = new StringBuffer();
Iterator iterator = coll.iterator();
while (iterator.hasNext()) {
 sb.append(iterator.next().toString());
 if (iterator.hasNext())
 sb.append(",");
return sb.toString();
...

String getCSV(Collection values)
get CSV string from the collections.

return getCSV(values, CSV_SEPARATOR, true);

String getCsv(Collection collection)
get Csv

String result = "";
if (collection.size() != 0) {
 result = getLocalCsv(collection);
return result;

String getCSVPhrase(Collection objects)
Creates CSV phrase from objects

return getCSVPhrase(objects, COMMA_CHAR);

String toCSV(int[] a)
to CSV

String ret = "";
for (int i = 0; i < a.length; i++) {
 if (i != 0) {
 ret += ',' + a[i];
 } else {
 ret += a[i];
return ret;

String toCsv(Object[] arr, String format)
to Csv

String ans = "";
if (arr.length > 0) {
 ans += String.format(format, arr[0]);
String format2 = "," + format;
for (int i = 1; i < arr.length; i++) {
 ans += String.format(format2, arr[i]);
ans += "\n";
return ans;

String toCsv(String value)
Formats a string for CSV escaping it as a double quoted CSV string if necessary

if (value.contains(",")) {
 return "\"" + escapeQuotesForCsv(value) + "\"";
} else {
 return value;

String toCSV3_2(double[][][] array, int index1, int index3)
to CS_

int len2 = array[index1].length;
if (len2 == 0) {
 return "";
StringBuffer s = new StringBuffer();
s.append(Double.toString(array[index1][0][index3]));
for (int i = 1; i < len2; i++) {
 s.append(";").append(Double.toString(array[index1][i][index3]));
...

String toCSVBuffer(byte barr[])
to CSV Buffer

StringBuffer sb = new StringBuffer(barr.length + 1);
sb.append('#');
for (int idx = 0; idx < barr.length; idx++) {
 sb.append(Integer.toHexString((int) barr[idx]));
return sb.toString();