Return middle 3 characters from string length greater than 3

    /**
     * Given a string of odd length, return the middle 3 characters from the string,
     * so the string <b>"Monitor"</b> yields <b>"nit"</b>.
     * If the string length is less than 3, return the string as is. <br>
     * <br>
     * 
     * <b>EXPECTATIONS:</b><br>
     * middleThree("bunny") <b>---></b> "unn" <br>
     * middleThree("peter") <b>---></b> "ete" <br>
     * middleThree("Jamaica") <b>---></b>"mai" <br>
     */

    public static String middleThree(String str) {
        if (str.length() < 3)
            return str;
        String result = str.substring((str.length() / 2) - 1, (str.length() / 2) + 2);
        return result;
    }