用于替换Java中的列表成员的迭代器？

Hmmm... the Java Iterator<T> has a remove() method but not a replace(T replacement) method.

嗯... Java Iterator 有一个remove()方法,但没有替换(T替换)方法。

Is there an efficient way to replace selected items in a List? I can use a for-loop to call get(i) and set(i) which is fine for ArrayList, but would suck for a linked list.

是否有一种有效的方法来替换列表中的选定项目?我可以使用for循环来调用get(i)和set(i)这对于ArrayList来说很好,但是会吸引链表。

2 个解决方案

#1

ListIterator.set as returned by List.listIterator() or List.listIterator(int)

List.listIterator()或List.listIterator(int)返回的ListIterator.set

(set wouldn't make any sense for, say, a Set iterator.)

(set,对Set Set迭代器来说没有任何意义。)

#2

You need a ListIterator instead of an Iterator (listIterator() gives you one). Then use the set method.

你需要一个ListIterator而不是Iterator(listIterator()给你一个)。然后使用set方法。