Java String split String by a given delimiter

//package com.demo2s;

import java.util.ArrayList;

import java.util.StringTokenizer;

public class Main {
    public static void main(String[] argv) throws Exception {
        String list = "demo2s.com,demo2s.com,demo2s.com,demo2s.com";
        char delimiter = ',';
        System.out.println(java.util.Arrays.toString(parseDelimitedList(list, delimiter)));
    }//from   w ww  .j a  va 2 s  .c  o m

    /**
     * Parse a list of substrings separated by a given delimiter. The delimiter
     * can also appear in substrings (just double them):
     *
     * parseDelimitedString("this|is", '|') returns ["this","is"]
     * parseDelimitedString("this||is", '|') returns ["this|is"]
     *
     * @param list String containing delimited substrings
     * @param delimiter Delimiter (anything except ' ' is allowed)
     *
     * @return String[] A String array of parsed substrings
     */
    public static String[] parseDelimitedList(String list, char delimiter) {
        String delim = "" + delimiter;
        StringTokenizer st = new StringTokenizer(list + delim + " ", delim, true);
        ArrayList<String> v = new ArrayList<String>();
        String lastToken = "";
        String word = "";

        while (st.hasMoreTokens()) {
            String tok = st.nextToken();
            if (lastToken != null) {
                if (tok.equals(delim)) {
                    word = word + lastToken;
                    if (lastToken.equals(delim))
                        tok = null;
                } else {
                    if (!word.equals(""))
                        v.add(word);
                    word = "";
                }
            }
            lastToken = tok;
        }

        return v.toArray(new String[0]);
    }

}