Java Utililty Methods List Value Add All

List of utility methods to do List Value Add All

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Description

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

Method

voidAddToList(List tips, String tip)
Add To List 
for (String exist : tips) {
    if (exist.equals(tip)) {
        return;
tips.add(tip);
ListaddToList(List dest, T src)
add To List 
if (src != null && !dest.contains(src)) {
    dest.add(src);
return dest;
ListaddToList(List list, T value)
Check and adds elements to list (create new ArrayList if list is null) 
if (value == null)
    return list;
if (list == null)
    list = new ArrayList<T>();
list.add(value);
return list;
voidaddToList(List list, T[] array)
add To List 
if (list == null || array == null)
    return;
for (T t : array)
    list.add(t);
ListaddToList(List list, U... items)
Add a varargs list of items to the specified list. 
if (list != null && items != null) {
    for (int i = 0; i < items.length; i++) {
        list.add(items[i]);
    if (list instanceof ArrayList) {
        ((ArrayList<T>) list).trimToSize();
return list;