Java Utililty Methods Map Put

List of utility methods to do Map Put

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Description

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

Method

voidputMultiEntry(Map map, Iterable keys, V value)
Convenient method to put several entry in a map having the same value at once. 
for (final K key : keys) {
    map.put(key, value);
MapputMultiple(Map map, Object key, Object value)
put Multiple 
Object existingValue = map.get(key);
if (existingValue == null)
    map.put(key, value);
else if (existingValue instanceof List)
    ((List) existingValue).add(value);
else
    map.put(key, buildList(existingValue, value));
return map;
...
voidputNotDup(Map tbl, String key, String value)
put Not Dup 
if (tbl.containsKey(key)) {
    String v = tbl.get(key);
    if (!contains(v, value)) {
        tbl.put(key, v + "," + value);
} else {
    tbl.put(key, value);
MapputObject(Map map, V key, W value)
put Object 
if (map == null) {
    map = new HashMap<T, U>();
map.put(key, value);
return map;
voidputObjectsInMultiMap(Map>> multiMap, Integer key, List stringPair)
Utility function for placing objects in a Map. 
if (multiMap == null)
    return;
List<List<String>> tempList = multiMap.get(key);
if (tempList == null) {
    tempList = new ArrayList<List<String>>();
    multiMap.put(key, tempList);
tempList.add(stringPair);
...
voidputOrCreateList(Map> map, K key, V value)
put Or Create List 
List<V> list;
list = map.get(key);
if (list == null) {
    list = new ArrayList<>();
    list.add(value);
    map.put(key, list);
} else {
    list.add(value);
...
voidputOrRemove(Map map, String key, Object obj)
put Or Remove 
if (obj == null) {
    map.remove(key);
} else {
    map.put(key, obj);
voidputPairs(Map map, Object... pairs)
put Pairs 
for (int i = 1; i < pairs.length; i += 2)
    map.put((K) pairs[i - 1], (V) pairs[i]);
voidputParameter(String key, String value, Map map)
put Parameter 
if (key.startsWith("$P{")) {
    Object obj = value;
    if (value.startsWith("[") && value.endsWith("]")) {
        String[] array = value.substring(1, value.length() - 1).split(",");
        obj = array;
    map.put(key.substring(3, key.length() - 1), obj);
voidputPreferenceStoredMapValue(String keyOfPreference, String keyInMap, Object value)
Put value with key keyInMapinto the map whose key is keyOfPreference 
Map map = getPreferenceStoredMap(keyOfPreference);
map.put(keyInMap, value);
setPreferenceStoredMap(keyOfPreference, map);