Java Utililty Methods Collection Join

List of utility methods to do Collection Join

  1. HOME
  2. Java
  3. C
  4. Collection Join

Description

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

Method

Stringjoin(final Collection items, final String inBetween)
Construct a string by toString()ing each item in the collection with inBetween between each item. 
final StringBuilder builder = new StringBuilder();
for (final Object item : items) {
    if (builder.length() > 0)
        builder.append(inBetween);
    builder.append(item);
return builder.toString();
Stringjoin(final Collection list, final String inbetween)
join 
final StringBuilder builder = new StringBuilder();
for (final Object object : list) {
    if (builder.length() > 0) {
        builder.append(inbetween);
    builder.append(object.toString());
return builder.toString();
...
Stringjoin(final Collection strings, String delimeter)
Convenience function for joining strings using a delimeter 
if (delimeter == null) {
    delimeter = ",";
if (strings.isEmpty()) {
    return "";
StringBuffer joined = new StringBuffer();
Iterator<?> stringIter = strings.iterator();
...
Stringjoin(final Collection values, final String separator)
join 
if (values == null)
    return "";
StringBuilder sb = new StringBuilder();
Iterator<Object> it = values.iterator();
while (it.hasNext()) {
    sb.append(String.valueOf(it.next()));
    if (it.hasNext())
        sb.append(separator);
...
Stringjoin(final Collection aStrings, final String aSeparator)
Join the given strings into a single string separated by the given separator. 
final StringBuilder sb = new StringBuilder();
Iterator<String> i = aStrings.iterator();
while (i.hasNext()) {
    sb.append(i.next());
    if (i.hasNext()) {
        sb.append(aSeparator);
return sb.toString();
Stringjoin(final Collection chunks, final String delimiter)
Join a collection of strings together into one. 
StringBuilder sb = new StringBuilder();
if (!chunks.isEmpty()) {
    Iterator<String> itr = chunks.iterator();
    sb.append(itr.next());
    while (itr.hasNext()) {
        sb.append(delimiter);
        sb.append(itr.next());
return sb.toString();
Stringjoin(final Collection collection, final String separator)
join 
if (collection == null || collection.isEmpty()) {
    return null;
final StringBuilder buffer = new StringBuilder();
for (final Iterator<String> iterator = collection.iterator(); iterator.hasNext();) {
    buffer.append(iterator.next());
    if (iterator.hasNext()) {
        buffer.append(separator);
...
Stringjoin(final Collection list, final String separator)
Join a list of strings into a single string with a separator 
final StringBuilder sb = new StringBuilder();
for (final String s : list) {
    if (sb.length() > 0) {
        sb.append(separator);
    sb.append(s);
return sb.toString();
...
Stringjoin(final Collection seq, final String delimiter)
join 
if (null == seq || seq.size() < 1) {
    return "";
} else {
    StringBuilder aim = new StringBuilder();
    for (String one : seq) {
        if (null != delimiter && aim.length() > 0) {
            aim.append(delimiter);
        aim.append(one);
    return aim.toString();
Stringjoin(final Collection strs, final String delimiter)
join 
if (strs == null || strs.isEmpty()) {
    return "";
Iterator<String> it = strs.iterator();
if (strs.size() == 1) {
    return it.next();
StringBuilder sb = new StringBuilder(it.next());
...