public interface WordCountInterface
{
    /*
     * if true, use Scanner, if false, use String.split
     */
    void setUseScanner(boolean uS);

    // prints every word, one word per line
    void words(String fileName);  

    // prints every word after the number in startingWord
    // one word per line
    void words(String fileName, int startingWord);

    // print numWords after startingWord, one word per line
    void words(String fileName, int startingWord, int numWords);

}