counting letters in a substring

[GitaLakshmi Mandal]

I am trying to count letters in a word for example "how do you do". I want to count how many three letters word. How can I do that using stringtokenizer. Someone could help me!

[Michael Morris]

Hi GitaLakshmi,
Welcome to JavaRanch. Maybe something like this:

import java.util.*;
public class WordSize {
    public static int wordSize(String sentence, int wordSize) {
        int words = 0;
        StringTokenizer st = new StringTokenizer(sentence);
        while (st.hasMoreTokens()) {
            int size = st.nextToken().length();
            if (size == wordSize) {
                words++;
            }
        }
        return words;
    }
    public static void main(String[] args) {
        String sentence = "how do you do";
        int wordSize = 3;
        StringBuffer sb = new StringBuffer();
        sb.append("The sentence \"");
        sb.append(sentence);
        sb.append("\" has (");
        sb.append(wordSize(sentence, wordSize));
        sb.append(") ");
        sb.append(wordSize);
        sb.append("-letter words.");
        System.out.println(sb.toString());
    }
}

Michael Morris