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CodingBat code practice

 

firstThree


Given a string, return a string length 3 made of its first 3 chars. If the string length is less than 3, use '@' for the missing chars.


firstThree("hello") → "hel"
firstThree("hi") → "hi@"
firstThree("h") → "h@@"

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

public String firstThree(String str){ }

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