Java Utililty Methods String to Map

List of utility methods to do String to Map

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Description

The list of methods to do String to Map are organized into topic(s).

Method

MapstringToCharMap(String s)
string To Char Map 
Map<Character, Integer> ret = new HashMap<Character, Integer>();
for (int i = 0; i < s.length(); i++) {
    ret.put(s.charAt(i), i);
return ret;
MapstringToMap(final String s)
Converts a string containing name-value pairs to a map. 
if (s == null)
    return null;
final Map<String, String> m = new HashMap<String, String>();
final StringBuilder sb = new StringBuilder();
int equalSignIdx = -1;
int ampersandCount = 0;
for (char c : s.toCharArray()) {
    if (c != '&' && ampersandCount > 0) {
...
MapstringToMap(final String s)
string To Map 
final Map<String, String> map = new HashMap<String, String>();
final String[] elements = s.split(";");
for (final String parts : elements) {
    final String[] keyValue = parts.split(":");
    map.put(keyValue[0], keyValue[1]);
return map;
MapstringToMap(String append)
string To Map 
if (append.isEmpty()) {
    return new HashMap<>();
HashMap errs = new HashMap<>();
String[] at = append.split(", ");
for (String string : at) {
    String[] at2 = string.split(":");
    ArrayList<String> atd = new ArrayList<>();
...
MapstringToMap(String source, String delimiter)
string To Map 
String[] fieldsArray = source.split(delimiter);
Map<String, String> fields = new HashMap();
if (fieldsArray.length == 4) {
    fields.put("accessKey", fieldsArray[0]);
    fields.put("digest", fieldsArray[1]);
    fields.put("date", fieldsArray[2]);
    fields.put("nonce", fieldsArray[3]);
} else {
...
HashMapstringToMap(String src)
Converts a name-value pair string into a Map object. 
HashMap<String, String> dest = new HashMap<String, String>();
if (src == null) {
    return (dest);
String line, key, val;
int equalsPos, newLinePos, startPos = 0, len = src.length();
while (startPos < len) {
    newLinePos = src.indexOf('\n', startPos);
...
MapstringToMap(String src)
Convert a string of key/val pairs to a map. 
Map<String, String> ret = new HashMap<String, String>();
String[] params = src.split(";");
for (String param : params) {
    int ei = param.indexOf("=");
    if (ei == -1) {
        continue;
    String key = param.substring(0, ei).trim();
...
HashMapStringToMap(String str)
String To Map 
return StringToMap(str, "\\n", "=");
MapstringToMap(String str)
string To Map 
Map<String, String> res = new HashMap<String, String>();
int start = 0;
int index;
while (start < str.length()) {
    index = str.indexOf(',', start);
    if (index < 0) {
        index = str.length();
    String col = str.substring(start, index).trim();
    start = index + 1;
    if (col.length() > 0) {
        index = col.indexOf(':');
        String name = col;
        String value = "";
        if (index >= 0) {
            name = col.substring(0, index).trim();
            value = col.substring(index + 1).trim();
        res.put(name, value);
return res;
MapstringToMap(String value)
string To Map 
if (value == null || value.length() == 0)
    throw new Exception();
if (value.startsWith("{") || value.startsWith("["))
    value = value.substring(1);
if (value.endsWith("}") || value.endsWith("]"))
    value = value.substring(0, value.length() - 1);
String[] elements = value.split(",");
Map<String, String> map = new HashMap();
...