It shows how the data structure USES collections (like HashMap or Vector) to structure the elements of the data structure.

它显示了数据结构如何利用集合(如hashmap或Vector)来设定数据结构的元素的结构。

youdao

The bigger problem with the synchronized Collections wrappers, and the earlier Hashtable and Vector classes, is that they synchronize on a single lock.

同步的集合包装器以及早期的Hashtable和Vector类带来的更大的问题是，它们在单个的锁上进行同步。

youdao

The bigger problem with the synchronized Collections wrappers, and the earlier Hashtable and Vector classes, is that they synchronize on a single lock.

同步的集合包装器以及早期的Hashtable和Vector类带来的更大的问题是，它们在单个的锁上进行同步。

youdao