public interface Listable<E> extends Iterable<E>, EmptyEvalutible
void add(E e)
void remove(E e)
void clear(E e)
void addAll(Collection<E> elements)
boolean isEmpty()
isEmpty 在接口中 EmptyEvalutibleboolean isNull()
isNull 在接口中 EmptyEvalutibleCopyright © 2021. All rights reserved.