Java: how to convert HashMaplt;String, Objectgt; to array(Java:如何转换HashMaplt;String、Objectgt;排列)

问题描述

我需要将 HashMap<String, Object> 转换为数组；谁能告诉我它是怎么做的?

I need to convert a HashMap<String, Object> to an array; could anyone show me how it's done?

推荐答案

hashMap.keySet().toArray(); // returns an array of keys
hashMap.values().toArray(); // returns an array of values

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编辑

需要注意的是，两个数组的排列顺序可能不一样，当需要键/值对时，请参阅 oxbow_lakes 答案以获得更好的迭代方法.

Edit

It should be noted that the ordering of both arrays may not be the same, See oxbow_lakes answer for a better approach for iteration when the pair key/values are needed.

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