Java Utililty Methods String Split by Separator

List of utility methods to do String Split by Separator

  1. HOME
  2. Java
  3. S
  4. String Split by Separator

Description

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

Method

String[]split(String str, char separatorChar, boolean preserveAllTokens)
split 
if (str == null) {
    return null;
int len = str.length();
if (len == 0) {
    return EMPTY_STRING_ARRAY;
List<String> list = new ArrayList<String>();
...
String[]split(String str, String separator)
split 
if (str == null) {
    return null;
if (separator == null || separator.length() != 1) {
    return null;
int len = str.length();
if (len == 0) {
...
String[]split(String str, String separator)
split 
String[] returnValue;
int index = str.indexOf(separator);
if (index == -1) {
    returnValue = new String[] { str };
} else {
    List<String> strList = new ArrayList<String>();
    int oldIndex = 0;
    while (index != -1) {
...
String[]split(String str, String separator, boolean preserveEmptyToken)
Split the string into tokens by the specified separator. 
List<String> list = new ArrayList<String>();
int start = 0, i = 0, len = separator.length(), total = str.length();
while ((i = str.indexOf(separator, start)) != -1) {
    if (start != i || preserveEmptyToken) {
        list.add(str.substring(start, i));
    start = i + len;
if (start != total || preserveEmptyToken) {
    list.add(str.substring(start, total));
return list.toArray(new String[list.size()]);
String[]split(String string, char separator)
split 
List<String> tokens = new ArrayList<String>();
int idxBeforeComma = 0;
for (int i = 0; i < string.length(); i++) {
    if (string.charAt(i) == separator) {
        tokens.add(string.substring(idxBeforeComma, i));
        idxBeforeComma = i + 1;
return tokens.toArray(new String[] {});
String[]split(String strToSplit, String strSeparator, int iLimit)
split 
java.util.ArrayList tmpList = new java.util.ArrayList();
int iFromIndex = 0;
int iCurIndex = strToSplit.length();
String strUnitInfo = "";
int iCurCounts = 0;
while ((iCurIndex != -1) && (iFromIndex <= strToSplit.length()) && (iCurCounts < iLimit)) {
    iCurIndex = strToSplit.indexOf(strSeparator, iFromIndex);
    if (iCurIndex == -1) {
...
Listsplit(String text, String separators, String brackets)
split 
List<String> result = new ArrayList<String>();
StringBuilder builder = new StringBuilder();
int length = text.length();
int bracketLevel = 0;
for (int i = 0; i < length; i++) {
    char c = text.charAt(i);
    if (bracketLevel == 0 && separators.indexOf(c) != -1) {
        result.add(builder.toString());
...
String[]splitAll(String str, char separatorChar)

Splits the provided text into an array, separator specified. 

if (str == null) {
    return EMPTY_STRING_ARRAY.clone();
int len = str.length();
if (len == 0) {
    return EMPTY_STRING_ARRAY.clone();
List<String> list = new ArrayList<String>();
...
ListsplitAndTrim(String tags, String separator)
split And Trim 
List<String> result = new ArrayList<String>();
if (tags != null && tags.length() > 0) {
    for (String piece : tags.split(separator)) {
        if (hasText(piece)) {
            result.add(piece.trim());
return result;
ListsplitBySeparator(String path, String separator)
split By Separator 
return Arrays.asList(path.split(separator.replace("\\", "\\\\")));