Java Utililty Methods List to Map

final Map<String, String> map = new LinkedHashMap<>();
final Iterator<String> stringIterator = Arrays.asList(strings).iterator();
while (stringIterator.hasNext()) {
    final String key = stringIterator.next();
    final String value = stringIterator.next();
    map.put(key, value);
return map;
...

int sz = input.size();
Map<String, Object> output = new LinkedHashMap<>();
for (int i = 0; i < sz; i++) {
    output.put("idx_" + i, input.get(i));
return output;

Map<T, T> map = new HashMap<T, T>(list.size());
Iterator<List<T>> i = list.iterator();
while (i.hasNext()) {
    List<T> l = i.next();
    map.put(l.get(0), l.get(1));
return map;

Map<A, B> result = new LinkedHashMap<A, B>();
for (Iterator<Map.Entry<A, B>> it = list.iterator(); it.hasNext();) {
    Map.Entry<A, B> entry = (Map.Entry<A, B>) it.next();
    result.put(entry.getKey(), entry.getValue());
return result;

HashMap map = new HashMap();
Object key = null;
for (final Object object : objects) {
    if (key == null) {
        key = object;
    } else {
        map.put(key, object);
        key = null;
...