Java Utililty Methods Comma Separated List

List of utility methods to do Comma Separated List

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Description

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

Method

StringtoCommaDelimited(List values)
Returns the comma-delimited String containing the specified values. 
StringBuilder buffer = new StringBuilder();
for (String value : values) {
    if (buffer.length() > 0) {
        buffer.append(",");
    buffer.append(value);
return buffer.toString();
...
StringtoCommaList(Collection items)
to Comma List 
if (items == null || items.size() == 0)
    return (null);
String itemList = "";
Iterator<?> it = items.iterator();
while (it.hasNext()) {
    String item = it.next().toString();
    itemList += item + ",";
itemList = itemList.substring(0, itemList.length() - 1);
return (itemList);
StringtoCommaSeparated(List list)
to Comma Separated 
if (list != null) {
    StringBuffer buff = new StringBuffer();
    boolean comma = false;
    for (String item : list) {
        if (comma) {
            buff.append(',');
        comma = true;
...
StringtoCommaSeparated(List list)
to Comma Separated 
StringBuilder sb = new StringBuilder();
for (String property : list) {
    sb.append(property).append(",");
sb.deleteCharAt(sb.length() - 1);
return sb.toString();
StringtoCommaSeparatedString(List list)
to Comma Separated String 
return toString(list, ", ");
ListtoList(final String commaSeparatedString)
to List 
List<String> list = new ArrayList<>();
if (commaSeparatedString == null || commaSeparatedString.trim().length() == 0) {
    return list;
String[] values = commaSeparatedString.split(",");
for (String value : values) {
    list.add(value.trim());
return list;
ListtoListDelimitedByComma(String s)
Turn a long string into a list split by our delimeter 
if (s == null)
    return Collections.EMPTY_LIST;
List results = new ArrayList();
String[] terms = s.split(DELIMETER);
for (int i = 0; i < terms.length; i++) {
    String term = terms[i].trim();
    if (term.length() > 0) {
        results.add(term);
...
ListtoListOfNonEmptyStringsDelimitedByCommaOrSemicolon(String s)
to List Of Non Empty Strings Delimited By Comma Or Semicolon 
if (s == null)
    return Collections.EMPTY_LIST;
List results = new ArrayList();
String[] terms = s.split(SEPARATOR);
for (int i = 0; i < terms.length; i++) {
    String term = terms[i].trim();
    if (term.length() > 0) {
        results.add(term);
...
ListtoListOfStringsDelimitedByCommaOrSemicolon(String s)
This version returns the complete list, including empty string, if such entry is empty 
if (s == null) {
    return Collections.EMPTY_LIST;
List results = new ArrayList();
String[] terms = s.split(SEPARATOR);
for (int i = 0; i < terms.length; i++) {
    String term = terms[i].trim();
    results.add(term);
...