Java Utililty Methods String Split

final ArrayList<String> splits = new ArrayList<String>();
if (text.length() > limit) {
    while (text.length() > limit) {
        final String sub = text.substring(0, limit);
        final int lastSpace = sub.lastIndexOf(" ");
        text = text.substring(lastSpace + 1);
        splits.add(sub);
    return splits;
splits.add(text);
return splits;

if (s == null) {
    return null;
final List<String> l = new ArrayList<String>();
for (final String i : s.split(",")) {
    if (i == null) {
        continue;
    final String sp = i.trim();
    if (sp.length() == 0) {
        continue;
    l.add(sp);
return l.toArray(new String[0]);

return new Iterable<String>() {
    public Iterator<String> iterator() {
        return new Iterator<String>() {
            private int from = 0;
            public boolean hasNext() {
                return from <= s.length();
            public String next() {
...

final List<String> res = new ArrayList<>();
int len1 = s.length();
String s1 = s;
while (true) {
    final String s2 = s1.replace("  ", " ");
    final int len2 = s2.length();
    s1 = s2;
    if (len2 == len1) {
...

if (str.contains(",")) {
    @SuppressWarnings("unchecked")
    final List<String> splitValues = Arrays.asList(str.split(","));
    return splitValues;
} else {
    final List<String> values = new ArrayList<String>(1);
    values.add(str);
    return values;
...

return split(str, ESCAPE, COMMA);

Por ejemplo

1. HolaMundo, retorna [Hola,Mundo]

List<String> list = new ArrayList<String>();
int j = 0;
for (int i = 1; i < string.length(); i++) {
    if (MAYUSCULAS.contains(string.charAt(i))) {
        list.add(string.substring(j, i));
        j = i;
list.add(string.substring(j, string.length()));
return list;

return split(string, null);

if (toSplit.length() == 1) {
    return split(string, toSplit.charAt(0));
ArrayList<String> ret = new ArrayList<String>();
if (toSplit.length() == 0) {
    ret.add(string);
    return ret;
int len = string.length();
int last = 0;
char c = 0;
for (int i = 0; i < len; i++) {
    c = string.charAt(i);
    if (c == toSplit.charAt(0) && matches(string, toSplit, i)) {
        if (last != i) {
            ret.add(string.substring(last, i));
        last = i + toSplit.length();
        i += toSplit.length() - 1;
if (last < len) {
    ret.add(string.substring(last, len));
return ret;

final ArrayList<String> parts = new ArrayList<String>();
int i = 0;
int j = 0;
while (i != text.length() && (j = text.indexOf(sp, i)) != -1) {
    if (i == j) {
        parts.add(""); 
    } else {
        parts.add(text.substring(i, j));
...