Java Utililty Methods Iterator

List of utility methods to do Iterator

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Description

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

Method

voidaddAllToSet(Set set, Iterator it)
add All To Set 
while (it.hasNext()) {
    set.add(it.next());
CaddTo(final Iterator iter, final C c)
add To 
while (iter.hasNext())
    c.add(iter.next());
return c;
voidappendTo(final Iterator iter, final List list)
Appends all elements which the iterator is willing to produce to the given list. 
assert null != iter;
assert null != list;
while (iter.hasNext()) {
    list.add(iter.next());
booleanareEqual(final Iterator a, final Iterator b)
are Equal 
while (a.hasNext() || b.hasNext()) {
    if (a.hasNext() != b.hasNext())
        return false;
    if (!a.next().equals(b.next()))
        return false;
return true;
booleanareEqual(final Iterator ittyA, final Iterator ittyB)
Checks if the contents of the two iterators are equal and of the same length. 
if (ittyA.hasNext() != ittyB.hasNext())
    return false;
while (ittyA.hasNext()) {
    if (!ittyB.hasNext())
        return false;
    if (ittyA.next() != ittyB.next())
        return false;
return true;
T[]asArray(T[] arr, Iterator itr)
as Array 
ArrayList<T> lst = new ArrayList<T>();
while (itr.hasNext()) {
    lst.add(itr.next());
Class tclass = arr.getClass().getComponentType();
return lst.toArray(arr);
ListasList(final Iterator iterator)
Converts a given iterator in a list. 
final List<T> result = new ArrayList<T>();
while (iterator.hasNext()) {
    result.add(iterator.next());
return result;
ListasList(Iterator it)
as List 
List<T> lst = new ArrayList<T>();
while (it.hasNext()) {
    lst.add(it.next());
return lst;
voidasStringOn(StringBuffer sb, Iterator iter, String separator)
Copies the elements returned by the iterator onto the string buffer each delimited by the separator. 
if (!iter.hasNext())
    return;
sb.append(iter.next());
while (iter.hasNext()) {
    sb.append(separator);
    sb.append(iter.next());
Iteratorcast(Iterator p)
cast 
return (Iterator<T>) p;