Java Utililty Methods Collection Last

List of utility methods to do Collection Last

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Description

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

Method

ObjectgetLast(Collection c)
Returns the last element in a collection (by exhausting its iterator in case it is not a list). 
if (c instanceof List)
    return getLast((List) c);
Object result = null;
Iterator it = c.iterator();
do { 
    result = it.next();
} while (it.hasNext());
return result;
...
TgetLastElement(Collection collection, T defaultValue)
Method which will return the "last" element in the given collection or a null value if not found. 
T elem = defaultValue;
if (collection != null && !collection.isEmpty()) {
    if (List.class.isAssignableFrom(collection.getClass())) {
        elem = ((List<T>) collection).get(collection.size() - 1);
    } else {
        for (T item : collection) {
            elem = item;
return elem;
TgetLastElement(final Collection collection)
get Last Element 
if (isEmpty(collection)) {
    return null;
if (collection instanceof List) {
    List<T> list = (List<T>) collection;
    return list.get(list.size() - 1);
} else {
    T last = null;
...
TgetLastOfCollection(Collection collection)
get Last Of Collection 
T t = (T) collection.toArray()[collection.size() - 1];
return t;
TgetLastOrNull(Collection collection)
get Last Or Null 
if (collection.isEmpty()) {
    return null;
} else if (collection instanceof List) {
    List<T> list = (List<T>) collection;
    return list.get(list.size() - 1);
} else {
    Iterator<T> iterator = collection.iterator();
    T last = null;
...
StringimplodeCollection(Collection items, String prefix, String suffix, String delimiter, String lastItemSuffix)
Glue together all items into one String. 
if (items == null)
    throw new NullPointerException("items argument may not be null");
if (prefix == null)
    prefix = "";
if (suffix == null)
    suffix = "";
if (delimiter == null)
    delimiter = "";
...
intlastIndexOfObjectIdentity(Collection collection, Object object)
Returns the index position of the last occurring object within the Collection . 
int retval = -1;
if (collection != null) {
    Iterator<E> iterator = collection.iterator();
    if (iterator != null) {
        int indexPosition = 0;
        boolean lastElementWasIdenticalElement = false;
        while ((retval < 0 || lastElementWasIdenticalElement) && iterator.hasNext()) {
            lastElementWasIdenticalElement = false;
...