Java_基础—LinkedList的特有功能

package com.soar.list;

import java.util.LinkedList;

@SuppressWarnings({ "rawtypes", "unchecked" })
public class Demo3_LinkedList {
/*
 *  * A:LinkedList类概述
    * B:LinkedList类特有功能
    * public void addFirst(E e)及addLast(E e)
    * public E getFirst()及getLast()
    * public E removeFirst()及public E removeLast()
    * public E get(int index);
 */

    public static void main(String[] args) {
        LinkedList list = new LinkedList();
        list.addFirst("a");     //在头处添加
        list.addFirst("b");
        list.addFirst("c");
        list.addFirst("d");     
        //System.out.println(list); //[d, c, b, a]
        list.addLast("e");      //在尾处添加
        System.out.println(list);   //[d, c, b, a, e]
        //System.out.println(list.getFirst());  //d
        //System.out.println(list.getLast());       //e
        //System.out.println(list.removeFirst());   //d
        //System.out.println(list.removeLast());    //e
        //System.out.println(list);             //[c, b, a]
        System.out.println(list.get(1));    //c
        System.out.println(list);   //[d, c, b, a, e]
    }

}