Java Utililty Methods List Value Add

List of utility methods to do List Value Add

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Description

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

Method

voidadd(final Integer id, final TreeMap> map, T object)
add 
List<T> list = map.get(id);
if (list == null) {
    list = new ArrayList<>();
    map.put(id, list);
list.add(object);
Listadd(final List list, final T... objects)
add 
if (objects == null)
    return list;
for (final T object : objects)
    list.add(object);
return list;
voidadd(final List toList, final List fromList)
add 
if (toList == null || fromList == null) {
    return;
for (T t : fromList) {
    if (!toList.contains(t)) {
        toList.add(t);
voidadd(List list, int index, Object element)
Adds a object to a list and extends the list by null values if the index is greater than the size. 
int size = list.size();
if (index < size) {
    list.add(index, element);
    return;
for (int i = size; i < index; i++) {
    list.add(null);
list.add(element);
Listadd(List valList, Object src)
add 
if (src == null) {
    return valList;
if (src instanceof List) {
    valList.addAll((List) src);
} else {
    valList.add(src);
return valList;
Listadd(List list, E element)
Returns the given List instance or a new List instance if the given one is null. 
@SuppressWarnings("unchecked")
List<E> retlist = (List<E>) list;
if (list == null) {
    retlist = new ArrayList<E>();
retlist.add(element);
return retlist;
voidadd(List result, ClassLoader loader)
add 
if (loader != null) {
    result.add(loader);
Listadd(List list, E element)
add 
if (element != null) {
    List<E> newList = new ArrayList<E>();
    if (list != null) {
        newList.addAll(list);
    newList.add(element);
    return newList;
return list;
voidadd(List list, int index, T item)
Adds the given item to the list at specified index. 
if (index < list.size())
    list.add(index, item);
else
    list.add(item);
voidadd(List list, int index, T item)
Adds the given item to the list at specified index. 
if (index < list.size()) {
    list.add(index, item);
} else {
    list.add(item);