Java Utililty Methods Collection Remove

List of utility methods to do Collection Remove

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Description

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

Method

Tremove(final int index, final Collection collection)
remove 
if (!isEmptyOrNull(collection)) {
    int i = 0;
    for (Iterator<T> it = collection.iterator(); it.hasNext();) {
        final T removed = it.next();
        if (i == index) {
            it.remove();
            return removed;
        i++;
return null;
ListremoveAll(Collection collection, Collection remove)
Removes the elements in remove from collection. 
List list = new ArrayList();
for (Iterator iter = collection.iterator(); iter.hasNext();) {
    Object obj = iter.next();
    if (remove.contains(obj) == false) {
        list.add(obj);
return list;
...
voidremoveAll(Collection source, Set remove)
remove All 
Iterator i = remove.iterator();
while (i.hasNext()) {
    source.remove(i.next());
booleanremoveAll(Collection c, Iterable elts)
Remove the given elements from a collection. 
if (elts instanceof Collection<?>) {
    return c.removeAll((Collection<?>) elts);
} else {
    boolean result = false;
    for (Object elt : elts) {
        result |= c.remove(elt);
    return result;
...
voidremoveAll(Collection c, Object e)
Removes all occurrences of e from c. 
if (c instanceof List) {
    List<?> list = (List<?>) c;
    int index = -1;
    do {
        index = list.lastIndexOf(e);
        if (index != -1)
            list.remove(index);
    } while (index != -1);
...
CollectionremoveAll(Collection c, T... array)
Removes objects in array to the given collection 
for (T obj : array)
    c.remove(obj);
return c;
CollectionremoveAll(Collection c, T... array)
Removes objects in array to the given collection 
for (T obj : array) {
    c.remove(obj);
return c;
voidremoveAll(Collection ret, Object[] elements)
remove All 
if (elements != null)
    for (int i = 0; i < elements.length; i++)
        ret.remove(elements[i]);
ListremoveAll(Collection collection, Collection remove)
remove All 
List<T> list = new ArrayList<T>();
for (Iterator<T> iter = collection.iterator(); iter.hasNext();) {
    T obj = iter.next();
    if (remove.contains(obj) == false) {
        list.add(obj);
return list;
...
booleanremoveAll(Collection collection, T... elementsToRemove)
Removes all elements from the Collection . 
if (collection != null && elementsToRemove != null) {
    boolean result = false;
    for (T toAdd : elementsToRemove) {
        result = collection.remove(toAdd) || result;
    return result;
} else {
    return false;
...