Java Utililty Methods List Copy

List of utility methods to do List Copy

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Description

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

Method

Listcopy(Collection list)
copy 
if (list == null || list.isEmpty()) {
    return new ArrayList<T>(0);
return new ArrayList<T>(list);
voidcopy(final List list0, final List list1)
copy 
Collections.copy(list0, list1);
Listcopy(java.util.List list)
for providing a copy of a list -- especially useful for providing a concurrency safe iteration of a list 
if (list instanceof java.util.ArrayList)
    return (List<T>) ((java.util.ArrayList) list).clone();
else
    return new ArrayList(list);
Listcopy(List master)
copy 
if (master == null) {
    return null;
return new ArrayList(master);
Listcopy(List oldlist)
copy 
List list = new ArrayList();
for (Iterator i = oldlist.iterator(); i.hasNext();) {
    list.add(i.next());
return list;
Listcopy(List src, boolean immutable)
copy 
if (src == null)
    return null;
List<T> result = new ArrayList<>(src);
if (immutable)
    return Collections.unmodifiableList(result);
return result;
Listcopy(List src, int offset, int length)
copy 
List<T> items = new ArrayList<T>(length);
for (int i = 0; i < length; i++)
    items.add(src.get(offset + i));
return items;
Listcopy(List master)
copy 
if (master == null) {
    return null;
return new ArrayList<E>(master);
Listcopy(List source, int index)
copy 
List<Integer> destination = new ArrayList<>();
for (int i = index; i < source.size(); i++) {
    destination.add(new Integer(source.get(i)));
return destination;
Listcopy(List list)
copy 
List<T> copy = new ArrayList<T>();
for (int i = 0; i < list.size(); i++) {
    copy.add(list.get(i));
return copy;