T_mul_double_2addr_4.rar_The Keys

package java.util; /** * AbstractSequentialList is an abstract implementation of the List interface. * This implementation does not support adding. A subclass must implement the * abstract method listIterator(). * * @since 1.2 */ public abstract class AbstractSequentialList<E> extends AbstractList<E> { /** * Constructs a new instance of this AbstractSequentialList. */ protected AbstractSequentialList() { super(); } @Override public void add(int location, E object) { listIterator(location).add(object); } @Override public boolean addAll(int location, Collection<? extends E> collection) { ListIterator<E> it = listIterator(location); Iterator<? extends E> colIt = collection.iterator(); int next = it.nextIndex(); while (colIt.hasNext()) { it.add(colIt.next()); } return next != it.nextIndex(); } @Override public E get(int location) { try { return listIterator(location).next(); } catch (NoSuchElementException e) { throw new IndexOutOfBoundsException(); } } @Override public Iterator<E> iterator() { return listIterator(0); } @Override public abstract ListIterator<E> listIterator(int location); @Override public E remove(int location) { try { ListIterator<E> it = listIterator(location); E result = it.next(); it.remove(); return result; } catch (NoSuchElementException e) { throw new IndexOutOfBoundsException(); } } @Override public E set(int location, E object) { ListIterator<E> it = listIterator(location); if (!it.hasNext()) { throw new IndexOutOfBoundsException(); } E result = it.next(); it.set(object); return result; } }