How to count the number of occurrences of each word?

Question

If I have an article in English, or a novel in English, and I want to count how many times each words appears, what is the fastest algorithm written in Java?

Some pe

Answer 1

It is actually classic word-count algorithm. Here is the solution:

public Map wordCount(String[] strings) {

  Map map = new HashMap();
  int count = 0;

  for (String s:strings) {

    if (map.containsKey(s)) {
      count = map.get(s);
      map.put(s, count + 1);
    } else {
        map.put(s, 1);
    }

  }
  return map;
}