Java Utililty Methods Map to String

List of utility methods to do Map to String

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Description

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

Method

StringtoString(Map map)
Like Java Map.toString() but no curly braces 
if (map == null)
    return "null";
StringBuilder sb = new StringBuilder(map.size() * 128);
Set<String> keys = map.keySet();
Iterator<String> it = keys.iterator();
while (it.hasNext()) {
    String key = it.next();
    Object value = map.get(key);
...
StringtoString(Map map)
to String 
Iterator<? extends Map.Entry<String, ? extends Object[]>> iter = map.entrySet().iterator();
if (!iter.hasNext()) {
    return "{}";
StringBuilder sb = new StringBuilder();
sb.append('{');
while (true) {
    Map.Entry<String, ? extends Object[]> entry = iter.next();
...
StringtoString(Map attrs)
to String 
if (attrs == null) {
    return "NULL";
StringBuffer buf = new StringBuffer(128);
List<String> keys = new ArrayList<String>(attrs.keySet());
Collections.sort(keys);
buf.append("{");
for (int i = 0; i < keys.size(); i++) {
...
StringtoString(Map attrs)
to String 
StringBuilder sb = new StringBuilder();
if (null != attrs && !attrs.isEmpty()) {
    sb.append(SP);
    for (String key : attrs.keySet()) {
        String val = attrs.get(key);
        if (isNotEmpty(val)) {
            sb.append(encode(key)).append(SSP).append(encode(val)).append(SP);
return sb.toString();
StringtoString(Map m)
to String 
if (m.isEmpty()) {
    return "";
StringBuilder sb = new StringBuilder();
int n = m.size();
for (String key : m.keySet()) {
    sb.append("\"" + key + "\"" + K_V_SEPARATOR + "\"" + m.get(key) + "\"");
    if (n > 1) {
...
StringtoString(Map map)
Returns a string representation of the contents of the specified Map The string representation consists of a list of the Map's entries, enclosed in square brackets ("[]"). 
StringBuilder string = new StringBuilder("[");
for (Map.Entry<String, String> keyValue : map.entrySet()) {
    string.append(keyValue.getKey()).append(" = ").append(keyValue.getValue()).append(";");
return string.append("]").toString();
StringtoString(Map params)
to String 
String str = "";
for (String key : params.keySet())
    str += key + "[" + params.get(key) + "] ";
return str.isEmpty() ? "empty" : str;
StringtoString(Map map)
to String 
StringBuilder sb = new StringBuilder();
boolean first = true;
for (Map.Entry<String, String[]> entry : map.entrySet()) {
    if (first == false) {
        sb.append(",");
    } else {
        first = false;
    sb.append(entry.getKey() + "={");
    boolean innerFirst = true;
    for (String value : entry.getValue()) {
        if (innerFirst == false) {
            sb.append(",");
        } else {
            innerFirst = false;
        sb.append(value);
    sb.append("}");
return sb.toString();
voidtoString(Map map, StringBuilder sb)
to String 
sb.append('{');
for (Iterator<Map.Entry<String, String[]>> i = map.entrySet().iterator(); i.hasNext();) {
    Map.Entry<String, String[]> entry = i.next();
    sb.append(entry.getKey()).append('=').append('[');
    String[] value = entry.getValue();
    for (int j = 0; j < value.length; j++) {
        if (j > 0) {
            sb.append(',');
...
MaptoStringMap(Map enumMap)
to String Map 
Map<String, T> map = new HashMap<String, T>(enumMap.size(), 1f);
for (E e : enumMap.keySet()) {
    map.put(e.name(), enumMap.get(e));
return map;