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recursionMystery7

Language/Type: Java recursion

For each call to the following recursive method, write the output that is produced as it would appear on the console. 

public static void recursionMystery7(String s) {
    if (s.length() <= 1) {
        System.out.print(s);
    } else {
        String first = s.substring(0, 1);
        String last  = s.substring(s.length() - 1, s.length());
        String mid   = s.substring(1, s.length() - 1);
        if (first.compareTo(last) < 0) {
            recursionMystery7(mid);
            System.out.print(last + first.toUpperCase());
        } else {
            System.out.print("[" + first + "]");
            recursionMystery7(mid);
            System.out.print(last);
        }
    }
}
recursionMystery7("abcd");
recursionMystery7("leonard");
recursionMystery7("breakfast");

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