如何把一段逗号分割的字符串转换成一个数组?

package com.wp;

import java.util.*;

public class TestMap{

    public static void main(String[] args) {

     String orgStr= new String("hello ,world,!!");
     StringTokenizer stokn=new StringTokenizer(orgStr,",");

     String[] result =new String[stokn.countTokens()];

     int i=0;
     while(stokn.hasMoreTokens()){
         result[i++]=stokn.nextToken();
         }

     for(String e:result)
         System.out.print(" "+e);
    }

}