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

StringstringJoin(List list, String separator)
Join a list of objects to a string with a given separator by calling Object.toString() on the elements. 
StringBuilder ret = new StringBuilder();
boolean first = true;
for (Object o : list) {
    if (!first) {
        ret.append(separator);
    ret.append(o);
    first = false;
...
StringstringJoin(List list, String sep)
string Join 
if (list == null)
    return null;
StringBuilder sb = new StringBuilder();
for (String s : list) {
    if (sb.length() > 0)
        sb.append(sep);
    sb.append(s);
return sb.toString();
StringtrimAndJoin(List values, String delimiter)
trim And Join 
if (values == null || values.isEmpty())
    return null;
StringBuilder delimited = new StringBuilder();
Iterator<Object> valuesI = values.iterator();
while (valuesI.hasNext()) {
    delimited.append(valuesI.next().toString().trim());
    if (valuesI.hasNext())
        delimited.append(delimiter);
...