linklist的一些方法

package test;


import java.util.*;

import javax.security.auth.kerberos.KerberosKey;

import java.io.*;
import java.math.BigInteger;


public class Main {

	private static final String space_operator = " ";
	public static void main(String[] args) throws Exception {

		Scanner scanner = new Scanner(new BufferedInputStream(System.in));
		PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
		
		LinkedList link = new LinkedList();
		
		//从开头添加
		link.addFirst("sdsd ");
		link.addFirst("23 ");
		link.addFirst("45 ");
		
		//从尾部添加
		link.addLast("99 ");
		
		link.addFirst("sdsd ");
		
		System.out.println(link);
		
		for(Iterator it = link.iterator(); it.hasNext();)
		{
			System.out.println(it.next());
		}
		System.out.println();
		while(!link.isEmpty())
		{
			System.out.println(link.remove());
		}
	}
}