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orion.a.smith@gmail.com hcs-strings > apcsaStringsGimmeLastThreeReversed
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Given a String input, return the last three characters in REVERSED order. Precondition: the input String has at least three characters. 


HINT


You will need length() and substring() or charAt() methods, as well as concatenation to complete this challenge.  Or you can use a loop...

apcsaStringsGimmeLastThreeReversed("Blah") → "hal"
apcsaStringsGimmeLastThreeReversed("I am not a boy") → "yob"
apcsaStringsGimmeLastThreeReversed("When will you come home?") → "?em"
...Save, Compile, Run (ctrl-enter)
public String apcsaStringsGimmeLastThreeReversed(String str) {
  
}






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