Java Utililty Methods String Split by Separator

List of utility methods to do String Split by Separator

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Description

The list of methods to do String Split by Separator are organized into topic(s).

Method

ListfastSplit(final String text, char separator)
fast Split 
return fastSplit(null, text, separator);
String[]fastSplit(String text, char separator)
A faster and simpler character-based string splitter based on http://forums.sun.com/thread.jspa?threadID=766801&start=0&tstart=0 
ArrayList<String> result = new ArrayList<String>();
if (text != null && text.length() > 0) {
    int index1 = 0;
    int index2 = text.indexOf(separator);
    while (index2 >= 0) {
        String token = text.substring(index1, index2);
        result.add(token);
        index1 = index2 + 1;
...
Listsplit(byte[] b, int separator)
split 
List<byte[]> result = new ArrayList<byte[]>();
int i = 0;
while (i < b.length) {
    int e = indexOf(b, separator, i);
    if (e == -1) {
        break;
    byte[] dest = new byte[e - i];
...
Listsplit(CharSequence seq, char separator)
split 
List<String> strs = new ArrayList<>();
StringBuilder buffer = new StringBuilder();
int index = 0;
while (index < seq.length()) {
    char ch = seq.charAt(index++);
    if (ch == ESCAPE_CHAR) {
        if (index < seq.length())
            buffer.append(seq.charAt(index++));
...
String[]split(final String expression, final char separator)
Splits an expression by the specified separator but keeps track of brackets so separator characters inside of a sub type are ignored. 
final List<String> parts = new ArrayList<String>();
int start = 0;
int level = 0;
final int len = expression.length();
for (int i = 0; i < len; i += 1) {
    final char c = expression.charAt(i);
    if (c == separator) {
        if (level == 0) {
...
Listsplit(final String input, final String separator)
split 
List<String> result = new ArrayList<String>();
if (input == null) {
    return result;
if (separator == null) {
    result.add(input);
    return result;
int separatorLength = separator.length();
int fromIndex = 0;
int separatorIndex = input.indexOf(separator, fromIndex);
while (separatorIndex >= 0) {
    result.add(input.substring(fromIndex, separatorIndex));
    fromIndex = separatorIndex + separatorLength;
    separatorIndex = input.indexOf(separator, fromIndex);
if (fromIndex <= input.length()) {
    result.add(input.substring(fromIndex, input.length()));
return result;
Listsplit(final String iSource, final char iRecordSeparator, final char... iJumpCharacters)
split 
return split(iSource, 0, iSource.length(), iRecordSeparator, iJumpCharacters);
String[]split(final String s, final char separator)
Splits a String at character separator and trims spaces if present. 
if (s == null)
    return null;
final List<String> result = new ArrayList<String>();
int j = -1;
for (int i = s.indexOf(separator); i != -1; j = i, i = s.indexOf(separator, i + 1)) {
    result.add(s.substring(j + 1, i).trim());
result.add(s.substring(j + 1).trim());
...
String[]split(final String str, final char separator)
Split string by special separator char. 
return split(str, separator, 0);
Listsplit(final String str, final char separator)
Split string to array. 
List<String> arr = new ArrayList<String>();
int pos = 0, lastPos = 0;
while ((pos = str.indexOf(separator, lastPos)) != -1) {
    arr.add(str.substring(lastPos, pos));
    lastPos = pos + 1;
if (str.length() > lastPos) {
    arr.add(str.substring(lastPos));
...