Is it possible to rename a Hashmap key?

Question

I'm looking for a way to rename a Hashmap key, but i don't know if it's possible in Java.

Accepted Answer

Try to remove the element and put it again with the new name. Assuming the keys in your map are `String`, it could be achieved that way:

```
Object obj = map.remove("oldKey");
map.put("newKey", obj);
```

Solution