JAVA分割字符串的方法

import java.util.ArrayList;
import java.util.List;


public class StringSplit {

    /**
     * @param args
     */
    public static void main(String[] args) {
        String[] aa = "aaa||bbb||ccc||".split("\\|\\|");
      
        for(String a :aa){
            System.out.println(a);         
        }
        System.out.println(aa.length);
      
        List <String> referralMessageList = new ArrayList<String>();
        String bb = "ddd||ee||ff";
        String [] referealReasons = bb.split("\\|\\|");
        for(String b :referealReasons){
            referralMessageList.add(b);
        }
       
        for(String l :referralMessageList){
            System.out.println(l);         
        }
    }
}