java LinkedList 用法

import java.io.*;
import java.util.*;

public class tmp
{
        public static void main(String args[]) throws Exception
        {
                LinkedList<Object> l = new LinkedList<Object>();

                l.add("111");
                l.add("222");
                l.add("333");

                Iterator<Object> t = l.iterator();
                while (t.hasNext())
                        System.out.println(t.next());

                l.clear();
        }
}