@Override
protected void doFinalStuff() throws IOException {
int numOfWords = WordsTool.getInstance().getIntegerMap().get(currFileName);
double avgWordLength = (double) wordLengthSum / numOfWords;
getDoubleMap().put(currFileName, Utils.getDouble(avgWordLength));
super.doFinalStuff();
}
/** Create Maps for file and reset data members */
@Override
protected void initForFile() {
super.initForFile();
wordLengthSum = 0;
}