Counting distinct words with Threads

Question

The objective is to count distinct words from a file.

UPDATE: Previous Code was successfully finished. Now I have to do the same but using threads (Oh

Answer 1

Why don't you sinply try something like:

public int countWords(File file) {
    Scanner sc = new Scanner(file);
    Set<String> allWords = new HashSet<String>();
    while(sc.hasNext()) {
        allWords.add(sc.next());
    }
    return allWords.size();
}