是否可以通过其位置从 HashMap 中获取元素? [英] Is it possible to get element from HashMap by its position?

问题描述

如何通过位置从HashMap中检索元素，有可能吗?

How to retrieve an element from HashMap by its position, is it possible at all?

推荐答案

HashMaps 不保留排序:

这个类不保证地图的顺序；特别是，它不保证订单随着时间的推移将保持不变.

This class makes no guarantees as to the order of the map; in particular, it does not guarantee that the order will remain constant over time.

看看 LinkedHashMap，这保证了可预测的迭代顺序.

Take a look at LinkedHashMap, which guarantees a predictable iteration order.

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