Java LinkedHashMap替换键 [英] Java LinkedHashMap replace key

问题描述

有什么方法可以在LinkedHashMap中使用put()替换密钥而不丢失密钥最初插入的顺序吗?

Is there any way to replace a key using put() in a LinkedHashMap without losing the order that the key was originally inserted in?

推荐答案

如果您使用LinkedHashMap，我认为没有内置的方法可以实现您的目标.您可能想要选择另一个(或设计自己的)数据结构.

If you used the LinkedHashMap, I don't think there is built-in method to achieve your goal. You may want to pick another (or design your own) data-structure.

如果必须在linkedhashmap上执行此操作，则可以创建一个新的LinkedHashMap，将旧的迭代并放入新的，当目标条目出现时，使用不同的密钥创建一个新条目，然后将新条目放入地图.

If you have to do it on a linkedhashmap, you can create a new LinkedHashMap, iterate the old one and put into the new one, when your target entry comes, create a new entry with different key, put the new entry into the map.

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