️八斗学院ai图灵班
@Override
public E get(int index) {}
@Override
public E set(int index, E element) {...}...}public abstract class AbstractList<E> extends AbstractCollection<E> implements List<E> {
public boolean add(E e) {
add(size(), e);
return true;
}
public void add(int index, E element) {
throw new UnsupportedOperationException();
}
