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norm.krumpe@muohio.edu homework8 > justTheVowels
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The vowels are a, e, i, o, and u. Given a string, return a new string with all non-vowels removed. All vowels will already be in lowercase (in other words, don't worry about uppercase vowels).


justTheVowels("axceweu123i") → "aeeui"
justTheVowels("o") → "o"
justTheVowels("rhythms") → ""

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String justTheVowels(String str) { }

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