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CodingBat code practice

Java > String-2 > doubleChar
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Given a string, return a string where for every char in the original, there are two chars.

doubleChar("The") → "TThhee"
doubleChar("AAbb") → "AAAAbbbb"
doubleChar("Hi-There") → "HHii--TThheerree"

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See also Java Example Code. Java help docs: If Boolean Logic | Strings | While and For Loops | Arrays and Loops


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