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simona1@sfusd.edu string1 > getFirstThreeChar
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Given a string, return a string formed by its first 3 characters. The string length will be at least 3. (Difficulty Level: 1)


getFirstThreeChar("Cool") → "Coo"
getFirstThreeChar("Hello") → "Hel"
getFirstThreeChar("Mississippi") → "Mis"

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public String getFirstThreeChar(String s){ }

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