Java：将一个列表分为两个子列表？

Question

在Java中将列表拆分为两个子列表的最简单，最标准和/或最有效的方法是什么？可以更改原始列表，因此无需复制。方法签名可以是

/** Split a list into two sublists. The original list will be modified to
 * have size i and will contain exactly the same elements at indices 0 
 * through i-1 as it had originally; the returned list will have size 
 * len-i (where len is the size of the original list before the call) 
 * and will have the same elements at indices 0 through len-(i+1) as 
 * the original list had at indices i through len-1.
 */
<T> List<T> split(List<T> list, int i);

[EDIT]
List.subList返回原始列表上的视图，如果修改了原始视图，该视图将无效。因此，除非它也放弃了原始参考文献，否则split无法使用subList（或者，如Marc
Novakowski的回答所述，使用subList但立即复制结果）。

Answer 1

快速半伪代码：

List sub=one.subList(...);
List two=new XxxList(sub);
sub.clear(); // since sub is backed by one, this removes all sub-list items from one

它使用标准的List实现方法，并避免了所有循环运行。clear（）方法还将removeRange()对大多数列表使用内部方法，并且效率更高。