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Map-2 > wordLen
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Given an array of strings, return a Map<String, Integer> containing a key for every different string in the array, and the value is that string's length.

wordLen(["a", "bb", "a", "bb"]) → {"bb": 2, "a": 1}
wordLen(["this", "and", "that", "and"]) → {"that": 4, "and": 3, "this": 4}
wordLen(["code", "code", "code", "bug"]) → {"code": 4, "bug": 3}

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public Map<String, Integer> wordLen(String[] strings) { }

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