Java Utililty Methods ArrayList Join

String join(ArrayList list, String delimeter)
Folds the list into a string, putting the delimeter in between each element of the collection.

StringBuilder sb = new StringBuilder();
for (int i = 0; i < list.size() - 1; i++) {
 sb.append(list.get(i).toString()).append(delimeter);
return sb.append(list.get(list.size() - 1).toString()).toString();

String join(ArrayList arr, String separator)
join

if (separator == null) {
 separator = ",";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < arr.size(); i++) {
 if (i > 0) {
 sb.append(separator);
 sb.append(arr.get(i).toString());
return sb.toString();

String Join(ArrayList coll, String delimiter)
Join

if (coll.isEmpty())
 return "";
StringBuilder sb = new StringBuilder();
for (String x : coll)
 sb.append(x + delimiter);
sb.delete(sb.length() - delimiter.length(), sb.length());
return sb.toString();

String join(ArrayList list)
join

if ((list == null) || (list.size() == 0))
 return "";
StringBuilder sb = new StringBuilder();
boolean first = true;
for (String item : list) {
 if (first)
 first = false;
 else
...

String join(ArrayList list, String delimiter)
join

StringBuilder stringBuilder = new StringBuilder();
Iterator<String> iterator = list.iterator();
while (iterator.hasNext()) {
 stringBuilder.append(iterator.next());
 if (!iterator.hasNext())
 break;
 stringBuilder.append(delimiter);
return stringBuilder.toString();

String Join(ArrayList list, String delimiter)
This method converts a list of String objects to a single String representation and inserts a delimiter between each object.

if (list.isEmpty())
 return "";
StringBuilder sb = new StringBuilder();
for (String x : list)
 sb.append(x + delimiter);
sb.delete(sb.length() - delimiter.length(), sb.length());
return sb.toString();

String join(ArrayList list, String joinChar)
join

StringBuilder sb = new StringBuilder();
int i = 0;
int size = list.size();
for (String part : list) {
 i++;
 sb.append(part);
 if (i != size) {
 sb.append(joinChar);
...

String join(ArrayList nameList, String delimiter)

String string;
StringBuilder builder;
if (nameList == null || nameList.isEmpty())
 return "";
Iterator<String> iter = nameList.iterator();
string = iter.next();
if (string.equals("")) {
 builder = new StringBuilder(iter.next());
...

String join(ArrayList s, String delimiter)
join

StringBuilder buffer = new StringBuilder();
for (int i = 0; i < s.size(); i++) {
 if (i != 0)
 buffer.append(delimiter);
 buffer.append(s.get(i));
return buffer.toString();

String join(ArrayList strings, String separator)
Join an array

StringBuffer sb = new StringBuffer();
for (int i = 0; i < strings.size(); i++) {
 if (i != 0)
 sb.append(separator);
 sb.append(strings.get(i));
return sb.toString();