Question: public static String alternate (String original){ return null; } /** * create and return a new string, with * either original's first letter at the

public static String alternate (String original){ return null; }

/** * create and return a new string, with * either original's first letter at the end (e.g. "abcd" --> "bcda") * or original's last letter in the beginning (e.g. "abcd" --> "dabc") * */

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