Java Utililty Methods Collection to List

List of utility methods to do Collection to List

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Description

The list of methods to do Collection to List are organized into topic(s).

Method

ListcollectionToList(Collection theset)
collection To List 
List<E> thelist = new ArrayList<E>();
for (E obj : theset)
    thelist.add(obj);
return thelist;
ListcollectionToList(Collection source)
Creates a new List with the same contents as the given Collection. 
return new ArrayList<T>(source);
StringcollectionToList(Iterable c)
collection To List 
StringBuffer ret = new StringBuffer();
for (Iterator<? extends Object> itr = c.iterator(); itr.hasNext();) {
    ret.append(itr.next().toString());
    if (itr.hasNext())
        ret.append(",");
return ret.toString();
ListconvertCollectionToList(Collection c)
Converts a collection into a list 
List l = null;
if (c instanceof List) {
    l = (List) c;
} else {
    l = new ArrayList();
    l.addAll(c);
return l;
...
ListconvertCollectionToList(Collection coll)
Converts an instance of List to an instance of Collection. 
if (coll instanceof List) {
    return (List<T>) coll;
} else {
    List<T> theReturn = new ArrayList<T>(coll);
    return theReturn;
ListconvertCollectionToList(Collection collection)
Methode de conversion d'une collection en Liste 
if (collection == null)
    return null;
return new ArrayList<T>(collection);
ListconvertCollectionToList(final Collection collection)
convert Collection To List 
if (List.class.isAssignableFrom(collection.getClass())) {
    return (List<T>) collection;
return new ArrayList<>(collection);
StringconvertCollectionToSQL(List listId)
convert Collection To SQL 
String s = "";
for (Integer i : listId) {
    s += i + ",";
return s.substring(0, s.lastIndexOf(","));
ListnewList(final Collection elements)
new List 
return new ArrayList<T>(elements);
ListnewList(final Collection collection)
New list. 
return list(collection);