Java Utililty Methods String Join

List of utility methods to do String Join

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Description

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

Method

Stringjoin(String delimiter, T... array)
join 
return join(delimiter, Arrays.asList(array));
Stringjoin(String glue, Iterable items)
join 
StringBuilder ret = new StringBuilder();
boolean first = true;
for (String item : items) {
    if (first) {
        first = false;
    } else {
        ret.append(glue);
    ret.append(item);
return ret.toString();
Stringjoin(String glue, String... str)
Combine strings with a common string 
if (str.length > 0) {
    StringBuilder sb = new StringBuilder(str[0]);
    for (int i = 1; i < str.length; i++)
        sb.append(glue).append(str[i]);
    return sb.toString();
} else
    return "";
Stringjoin(String joiner, String... toJoin)
join 
return join(joiner, Arrays.asList(toJoin), 0);
Stringjoin(String s, Object... objects)
join 
if (objects.length == 0) {
    return "";
StringBuilder sb = new StringBuilder(objects[0].toString());
for (int i = 1; i < objects.length; i++) {
    sb.append(s).append(objects[i]);
return sb.toString();
...
Stringjoin(String sep, Object... pieces)
Turns a sequence of objects into a string, delimited by sep . 
if ((pieces.length == 1) && (pieces[0] instanceof Collection)) {
    return internalJoin(sep, (Collection<Object>) pieces[0]);
} else {
    return internalJoin(sep, Arrays.asList(pieces));
Stringjoin(String separator, CharSequence... elements)
join 
StringBuilder builder = new StringBuilder();
for (int i = 0; i < elements.length; i++) {
    builder.append(elements[i]);
    if (i < elements.length - 1) {
        builder.append(separator);
return builder.toString();
...
Stringjoin(String separator, Collection strings)
Joins a number of strings together to form one long string, with the optional separator inserted between each of them. 
StringBuilder builder = new StringBuilder();
for (String string : strings) {
    if (builder.length() > 0 && separator != null)
        builder.append(separator);
    builder.append(string);
return builder.toString();
Stringjoin(String separator, List objects)
join 
StringBuilder builder = new StringBuilder();
for (int i = 0; i < objects.size(); i++) {
    builder.append(objects.get(i));
    if (i != objects.size() - 1)
        builder.append(separator);
return builder.toString();
Stringjoin(String separator, Object... objects)
join 
StringBuilder sb = new StringBuilder();
for (Object o : objects) {
    sb.append(o.toString()).append(separator);
return sb.toString().trim();