问题描述
如何遍历 LinkedHashSet 从最后一项到第一项?
解决方案
如果你想继续使用集合,你可以使用如下:
LinkedHashSet;设置 = ...链表<T>list = new LinkedList<>(set);迭代器<T>itr = list.descendingIterator();而(itr.hasNext()){T 项目 = itr.next();//做一点事}
如果您可以改用数组,可以查看 hvgotcodes 的答案.p>
How can I iterate through items of a LinkedHashSet from the last item to the first one?
解决方案
If you want to continue to use collections, you could use the following:
LinkedHashSet<T> set = ... LinkedList<T> list = new LinkedList<>(set); Iterator<T> itr = list.descendingIterator(); while(itr.hasNext()) { T item = itr.next(); // do something }
If you're fine with using an array instead, you could take a look at hvgotcodes' answer.