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orion.a.smith@gmail.com apcsa-encryption > apcsaDecryptFromAlphaNums
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(EASY) Given an ArrayList of Integer values representing positions in the alphabet ('A'==0, 'B'==1, ..., 'Z'==25), restore the original uppercase characters and build them into an output String.


apcsaDecryptFromAlphaNums([0, 1, 2]) → "ABC"
apcsaDecryptFromAlphaNums([23, 24, 25]) → "XYZ"
apcsaDecryptFromAlphaNums([5, 4, 4, 3, 19, 7, 4, 12, 4, 19, 4, 17]) → "FEEDTHEMETER"

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

public String apcsaDecryptFromAlphaNums(ArrayList<Integer> nums) { }

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