HashMap

[mdawoud]

Hey Guys,

I'm hoping you could help me out here. I'm confused on how to use HashMap. I'm trying to use HashMap or HashTable to count words in a JTextArea. I have two text areas, one for editable and the other is not. So, I read a txt file into the JTextArea and I need to count how many words in that file.

Any ideas?

[JosAH]

Any ideas?

Sure; if you know how to figure out how to extract words from a String, the
following little snippet can count them for you:

public class WordCounter {
   private Map<String, Integer> words= new HashMap<String, Integer>();
   public void put(String word) {
      Integer n= words.get(word);
      if (n == null) // word not yet in map
         n= Integer.valueOf(0);
      map.put(word.n+1); // update count
   }
   // etc. etc.
}

kind regards,

Jos