}

  private @Nullable T next;

  /**
   * Returns the next element. <b>Note:</b> the implementation must call {@link #endOfData()} when
   * there are no elements left in the iteration. Failure to do so could result in an infinite loop.
   *
   * <p>The initial invocation of {@link #hasNext()} or {@link #next()} calls this method, as does
   * the first invocation of {@code hasNext} or {@code next} following each successful call to

    List<E> list = new ArrayList<>();
    addAll(list, elements);
    return list;
  }

  public static <E extends @Nullable Object> List<E> copyToList(E[] elements) {
    return copyToList(asList(elements));
  }

  // Clone of Sets.newLinkedHashSet
  public static <E extends @Nullable Object> Set<E> copyToSet(Iterable<? extends E> elements) {
    Set<E> set = new LinkedHashSet<>();

///

## Qu'est-ce qu'un flux ? { #what-is-a-stream }

La « diffusion en continu » de données signifie que votre application commence à envoyer des éléments de données au client sans attendre que l'ensemble de la séquence soit prêt.

Ainsi, elle enverra le premier élément, le client le recevra et commencera à le traiter, et vous pourriez être encore en train de produire l'élément suivant.

```mermaid
sequenceDiagram
    participant App

     * Returns the option followed by a string representation of the given path elements.
     * The path elements are separated by an option-specific or platform-specific separator.
     * If the given {@code paths} argument contains no element, then this method returns an empty string.
     *
     * <h4>Examples</h4>
     * If {@code paths} is a list containing two elements, {@code dir/path1} and {@code dir/path2}, then:
     *
     * <ul>

    protected List<Long> create(Long[] elements) {
      return asList(elements);
    }
  }

  public static final class LongsAsListHeadSubListGenerator extends TestLongListGenerator {
    @Override
    protected List<Long> create(Long[] elements) {
      Long[] suffix = {Long.MIN_VALUE, Long.MAX_VALUE};
      Long[] all = concat(elements, suffix);
      return asList(all).subList(0, elements.length);
    }
  }

    @Override
    protected List<Short> create(Short[] elements) {
      return asList(elements);
    }
  }

  public static final class ShortsAsListHeadSubListGenerator extends TestShortListGenerator {
    @Override
    protected List<Short> create(Short[] elements) {
      Short[] suffix = {Short.MIN_VALUE, Short.MAX_VALUE};
      Short[] all = concat(elements, suffix);
      return asList(all).subList(0, elements.length);

    protected List<Character> create(Character[] elements) {
      return asList(elements);
    }
  }

  public static final class CharsAsListHeadSubListGenerator extends TestCharListGenerator {
    @Override
    protected List<Character> create(Character[] elements) {
      Character[] suffix = {Character.MIN_VALUE, Character.MAX_VALUE};
      Character[] all = concat(elements, suffix);

    @Override
    protected List<Short> create(Short[] elements) {
      return asList(elements);
    }
  }

  public static final class ShortsAsListHeadSubListGenerator extends TestShortListGenerator {
    @Override
    protected List<Short> create(Short[] elements) {
      Short[] suffix = {Short.MIN_VALUE, Short.MAX_VALUE};
      Short[] all = concat(elements, suffix);
      return asList(all).subList(0, elements.length);

    return new Chars();
  }

  @Override
  public List<Character> create(Object... elements) {
    Character[] array = new Character[elements.length];
    int i = 0;
    for (Object e : elements) {
      array[i++] = (Character) e;
    }
    return create(array);
  }

  /**
   * Creates a new collection containing the given elements; implement this method instead of {@link
   * #create(Object...)}.
   */

              @Override
              public Collection<@Nullable String> create(@Nullable String[] elements) {
                List<@Nullable String> list = new ArrayList<>();
                for (String element : elements) {
                  list.add((element == null) ? null : "q" + element);
                }
                return Collections2.transform(