Java Utililty Methods Comma Separated List

int count, offset;
String tag;
count = 0;
while (!tags.isEmpty()) {
    offset = tags.indexOf(",");
    if (offset >= 0) {
        tag = tags.substring(0, offset).trim();
        tags = tags.substring(tag.length() + 1).trim();
...

final String[] lineParts = line.split(delimiter);
for (int i = 0; i < lineParts.length; i++) {
    if (i == 0) {
        extractedCommands.add(bufferedCommand.toString() + " " + lineParts[i]);
        bufferedCommand.setLength(0);
        bufferedCommand.trimToSize();
    } else {
        if (i == (lineParts.length - 1) && !line.endsWith(delimiter)) {
...

StringBuilder builder = new StringBuilder();
boolean redact = false; 
for (String string : arguments) {
    final boolean quote = string.contains(" ");
    if (quote) {
        builder.append("\"");
    builder.append(redact ? "{redacted}" : string);
...

StringBuffer strBuffer = new StringBuffer();
for (Iterator<?> iter = coll.iterator(); iter.hasNext();) {
    Object obj = iter.next();
    if (obj != null) {
        strBuffer.append(obj.toString());
        strBuffer.append(",");
return strBuffer.toString();

StringBuffer SB = new StringBuffer();
int size = V.size();
for (int i = 0; i < size; i++) {
    if (SB.length() > 0)
        SB.append(',');
    SB.append(V.get(i));
return SB.toString();
...

if (command == null || command.isEmpty()) {
    return "";
String result = (String) command.get(0);
for (int i = 1; i < command.size(); i++) {
    result += " " + command.get(i);
return result;
...

String s = getCommandLineOption(args, param, null);
if (s == null)
    return defaultValue;
return Integer.parseInt(s);

String s = "";
for (String _command : commandList) {
    s += _command + " ";
return s;

StringBuilder values = new StringBuilder();
if (stringValues.size() == 0) {
    return values.toString();
Iterator<String> i = stringValues.iterator();
values.append((String) i.next());
while (i.hasNext()) {
    values.append(", ");
...

StringBuilder buffer = new StringBuilder();
String separator = "";
for (Object e : list) {
    buffer.append(separator).append(e);
    separator = ",";
return buffer.toString();