Java Utililty Methods Collection Join

List of utility methods to do Collection Join

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Description

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

Method

Stringjoin(Collection toJoin, String joinBy)
join 
if (toJoin == null) {
    return null;
String joined = "";
for (Object o : toJoin) {
    joined += o.toString() + joinBy;
if (joined.length() > 0) {
...
Stringjoin(Collection tokens, String d)
Join the specified tokens into a delimited string. 
if (tokens == null)
    return null;
return join(tokens, d, new StringBuilder()).toString();
Stringjoin(Collection values)
Joins a collection of objects' toString() values into a single string, using the default delimiter of ", " (comma-space). 
if (values == null)
    return null;
return join(values.toArray(new Object[values.size()]));
Stringjoin(Collection collection, String separator)
Joins the elements in an input collection using a given separator. 
if (collection.isEmpty())
    return "";
Iterator<A> it = collection.iterator();
StringBuilder out = new StringBuilder();
out.append(it.next());
while (it.hasNext())
    out.append(separator).append(it.next());
return out.toString();
...
Stringjoin(Collection data)
join 
return join(data, ",");
Stringjoin(Collection c, String separator)
returns a string with elements of the given collection concatenated, separated by given separator 
if (c.size() == 0)
    return "";
int n = c.size(), count = 0;
StringBuilder result = new StringBuilder();
for (E e : c) {
    result.append(e);
    count++;
    if (count < n) 
...
Stringjoin(Collection args, String delimeter)
join 
StringBuilder sb = new StringBuilder();
Iterator<String> i = args.iterator();
while (i.hasNext()) {
    String s = i.next();
    sb.append(s);
    if (i.hasNext())
        sb.append(delimeter);
return sb.toString();
Stringjoin(Collection c)
join 
return join(c, " ");
Stringjoin(Collection c, String joinSymbol)
join 
StringBuffer sb = new StringBuffer("");
if (c != null) {
    for (String text : c) {
        sb.append(text).append(joinSymbol);
    int sblen = sb.length();
    int symlen = joinSymbol.length();
    if (sblen > symlen) {
...
Stringjoin(Collection coll, String delimiter)
Returns the comma seprated string example:-a@b.com,c@d.com,d@e.com 
if (coll.isEmpty())
    return "";
StringBuilder sb = new StringBuilder();
for (String x : coll)
    sb.append(x + delimiter);
sb.delete(sb.length() - delimiter.length(), sb.length());
return sb.toString();