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tmhscs@gmail.com strings > string_changeLetterToZ
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Given a String called "word" and an integer called "index", change the letter at the given index to a "Z".


string_changeLetterToZ("Hello", 0) → "Zello"
string_changeLetterToZ("Hello", 1) → "HZllo"
string_changeLetterToZ("Hello", 2) → "HeZlo"

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public String string_changeLetterToZ(String word, int index) { }

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