Java Utililty Methods Collection Add

List of utility methods to do Collection Add

  1. HOME
  2. Java
  3. C
  4. Collection Add

Description

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

Method

voidaddAll(Collection collection, T... array)
add All 
for (T t : array) {
    collection.add(t);
voidaddAll(Collection collection, T... elementsToAdd)
Adds all elements to the Collection . 
if (collection != null && elementsToAdd != null) {
    Collections.addAll(collection, elementsToAdd);
voidaddAll(Collection collection, T... elementsToAdd)
Adds all elements to the Collection . 
if (collection != null && elementsToAdd != null) {
    for (T toAdd : elementsToAdd) {
        collection.add(toAdd);
CollectionaddAll(Collection collection, T... newElements)
Add the contents of an array to a collection and return the collection. 
Collections.addAll(collection, newElements);
return collection;
CollectionaddAll(Collection collection, T[] array)
Adds all elements from array to collection. 
for (int i = 0; i < array.length; i++) {
    collection.add(array[i]);
return collection;
voidaddAll(Collection collection, T[] array)
add All 
for (int i = 0; i < array.length; ++i)
    collection.add(array[i]);
voidaddAll(Collection collection, T[] items)
Adds specified items to the specified collection. 
for (T newElem : items) {
    collection.add(newElem);
voidaddAll(Collection dest, Collection src, Class type)
add All 
if (dest == null || src == null || type == null) {
    throw new IllegalArgumentException("Arguments must not be null.");
for (Object element : src) {
    if (element != null && type.isAssignableFrom(element.getClass())) {
        dest.add((T) element);
voidaddAll(Collection dest, Collection orig)
Null safe method for adding all the elements in "orig" to "dest" 
if (!isEmpty(orig)) {
    dest.addAll(orig);
booleanaddAll(Collection dest, T... elements)
Adds element from an array into a collection. 
boolean result = false;
for (final T e : elements) {
    result = dest.add(e) | result;
return result;