LinkedList的搜索元素

 // 来 自 n  o  w  j  a  v  a . c o m

import java.util.LinkedList;

 

public class Main {

 

  public static void main(String[] args) {

    LinkedList lList = new LinkedList();

   

    lList.add("1");

    lList.add("2");

    lList.add("3");

    lList.add("4");

    lList.add("5");

    lList.add("2");//来自 N o  w  J a v a . c o m - 时  代  Java

   

     int index = lList.indexOf("2");

     if(index != -1){

       System.out.println("First occurrence of 2 in LinkedList is at index : " + index);

     } else {

      System.out.println("LinkedList does not contain 2");

     }

   

     index = lList.lastIndexOf("2");

     if(index != -1) {

      System.out.println(