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CodingBat code practice

 

firstUniqueLetter


Find the first non-repeated letter in a String, return as a String, case insensitive (return letter in lowercase)


firstUniqueLetter("Morning") → "m"
firstUniqueLetter("Spooks") → "p"
firstUniqueLetter("SENESCENCE") → ""

...Save, Compile, Run (ctrl-enter)

public String firstUniqueLetter(String str) { }

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