Java Utililty Methods List Join

List of utility methods to do List Join

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Description

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

Method

Stringjoin(List values, String delimiter)
Join a given List of String s, separated by a given delimiter. 
StringBuilder sb = new StringBuilder();
if (values != null && !values.isEmpty()) {
    sb.append(values.get(0));
    for (int i = 1; i < values.size(); i++) {
        sb.append(delimiter);
        sb.append(values.get(i));
return sb.toString();
Stringjoin(List values, String string)
join 
StringBuilder sb = new StringBuilder();
int c = values.size();
for (String val : values) {
    if (c-- > 1)
        sb.append(val + string);
    else
        sb.append(val);
return sb.toString();
Stringjoin(List words, String separator)
Joins a list of words together, separated by a separator string. 
StringBuilder s = new StringBuilder();
for (String w : words) {
    if (s.length() > 0) {
        s.append(separator);
    s.append(w);
return s.toString();
...
Stringjoin(List entries, String separator)
join 
if (entries == null) {
    return null;
StringBuilder output = new StringBuilder();
Iterator<T> iterEntries = entries.iterator();
while (iterEntries.hasNext()) {
    T entry = iterEntries.next();
    if (entry != null) {
...
Stringjoin(List list, String delim)
join 
StringBuilder stBld = new StringBuilder();
for (T obj : list) {
    stBld.append(obj).append(delim);
return stBld.substring(0, stBld.length() - 1);
Stringjoin(List list, String delim)
join 
String joined = null;
if (list.size() == 1) {
    joined = list.get(0).toString();
} else {
    StringBuilder stBld = new StringBuilder();
    for (T obj : list) {
        stBld.append(obj).append(delim);
    joined = stBld.substring(0, stBld.length() - 1);
return joined;
Stringjoin(List list, String delimiter)
Create a string out of the list's elements using the given delimiter. 
if (list.isEmpty()) {
    return "";
final StringBuilder sb = new StringBuilder();
for (T element : list) {
    sb.append(element);
    sb.append(delimiter);
sb.delete(sb.length() - delimiter.length(), sb.length());
return sb.toString();
Stringjoin(List list, String joiner)
Join the list with joiner. 
StringBuilder stringBuilder = new StringBuilder();
if (list == null) {
    return null;
if (list.isEmpty()) {
    return "";
for (T s : list) {
...
Stringjoin(List list, String separator)
Join list elements into a string. 
StringBuffer result = new StringBuffer();
Iterator<T> iter = list.iterator();
while (iter.hasNext()) {
    result.append(iter.next());
    if (iter.hasNext()) {
        result.append(separator);
return result.toString();
Stringjoin(List objects, String separator)
join 
StringBuilder result = new StringBuilder();
for (int i = 0; i < objects.size(); i++) {
    if (i > 0) {
        result.append(separator);
    result.append(objects.get(i).toString());
return result.toString();
...