Method medChar

lib/java/util/Arrays.java:2648–2655

(int a, int b, int c, String[] arr, int id)

     * returns the median index.
     */
    private static int medChar(int a, int b, int c, String[] arr, int id) {
        int ac = charAt(arr[a], id);
        int bc = charAt(arr[b], id);
        int cc = charAt(arr[c], id);
        return ac < bc ? (bc < cc ? b : (ac < cc ? c : a))
                : (bc < cc ? (ac < cc ? a : c) : b);

    }

    /*
     * Returns the char value at the specified index of string or -1 if the