Java Utililty Methods Collection Join

List of utility methods to do Collection Join

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Description

The list of methods to do Collection Join are organized into topic(s).

Method

Stringjoin(Collection items, String join)
Join elements of a String collection into a single string. 
StringBuilder list = new StringBuilder();
boolean first = true;
for (String type : items) {
    if (!first) {
        list.append(join);
    list.append(type);
    first = false;
...
Stringjoin(Collection items, String prefix, String suffix, String itemPrefix, String itemSuffix)
join 
StringBuilder sb = new StringBuilder();
sb.append(prefix);
for (String item : items) {
    sb.append(itemPrefix).append(item).append(itemSuffix);
sb.append(suffix);
return sb.toString();
Stringjoin(Collection list)
join 
StringBuilder sb = new StringBuilder();
for (String s : list) {
    sb.append(s).append(' ');
if (sb.length() > 0) {
    sb.deleteCharAt(sb.length() - 1);
return sb.toString();
...
Stringjoin(Collection list, String conjunction)
join 
StringBuilder sb = new StringBuilder();
if (conjunction == null) {
    conjunction = ", ";
if (list != null && !list.isEmpty()) {
    for (String string : list) {
        sb.append(string).append(conjunction);
    sb.setLength(sb.length() - conjunction.length());
return sb.toString();
Stringjoin(Collection packs)
join 
final StringBuilder s = new StringBuilder();
for (final String pack : sorted(packs)) {
    s.append(", ").append(pack);
return s.length() > 0 ? s.substring(2) : s.toString();
Stringjoin(Collection s, String delimiter)
join 
return join(s, delimiter, false);
Stringjoin(Collection s, String delimiter)
Join a collection of objects into a single string string separated by a delimiter 
if (s.isEmpty())
    return "";
Iterator<String> iter = s.iterator();
StringBuffer buffer = new StringBuffer(iter.next());
while (iter.hasNext())
    buffer.append(delimiter).append(iter.next());
return buffer.toString();
Stringjoin(Collection src, String delim)
join 
StringBuilder sb = new StringBuilder();
boolean first = true;
for (String s : src) {
    if (first) {
        first = false;
    } else {
        sb.append(delim);
    sb.append(s);
return sb.toString();
Stringjoin(Collection strings)
Joins a Collection of strings into a single string, inserting a space between each one. 
return join(strings, " ");
Stringjoin(Collection strings, String delimiter)
Joins a Collection of String s in a single String using delimiter between each String . 
StringBuffer buffer = new StringBuffer();
Iterator<String> iter = strings.iterator();
while (iter.hasNext()) {
    buffer.append(iter.next());
    if (iter.hasNext()) {
        buffer.append(delimiter);
return buffer.toString();