Android Utililty Methods Iterable Join

List of utility methods to do Iterable Join

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Description

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

Method

Stringjoin(Iterable collection)
join collection to string, separator is #DEFAULT_JOIN_SEPARATOR 
 join(null)      =   ""; join({})        =   ""; join({a,b})     =   "a,b"; 
return collection == null ? "" : TextUtils.join(
        DEFAULT_JOIN_SEPARATOR, collection);
Stringjoin(Iterable parts, String delimiter)
Join a strings Iterable into a single string. 
StringBuilder builder = new StringBuilder();
for (String s : parts) {
    builder.append(s).append(delimiter);
if (builder.length() > 0) {
    return builder.substring(0,
            builder.length() - delimiter.length());
return EMPTY;
Stringjoin(Iterable strings)
make a comma seperated string out a passed list/set of strings 
StringBuilder builder = new StringBuilder();
for (String s : strings) {
    builder.append(s).append(", ");
String result = builder.toString();
return result.substring(1, result.length() - 2);
Stringjoin(Iterable s, CharSequence delimiter)
join 
int capacity = 0;
int delimLength = delimiter.length();
Iterator<? extends CharSequence> iter = s.iterator();
if (iter.hasNext()) {
    capacity += iter.next().length() + delimLength;
StringBuilder buffer = new StringBuilder(capacity);
iter = s.iterator();
...
Stringjoin(Iterable iterable)
join 
StringBuilder sb = new StringBuilder();
boolean isFirst = true;
for (T t : iterable) {
    if (!isFirst) {
        sb.append(",");
        isFirst = false;
    sb.append(t.toString());
...