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Map-1 > mapBully
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Modify and return the given map as follows: if the key "a" has a value, set the key "b" to have that value, and set the key "a" to have the value "". Basically "b" is a bully, taking the value and replacing it with the empty string.

mapBully({"a": "candy", "b": "dirt"}) → {"a": "", "b": "candy"}
mapBully({"a": "candy"}) → {"a": "", "b": "candy"}
mapBully({"a": "candy", "b": "carrot", "c": "meh"}) → {"a": "", "b": "candy", "c": "meh"}

...Save, Compile, Run (ctrl-enter)

public Map<String, String> mapBully(Map<String, String> map) { }

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