Java示例在LinkedList中查找元素

import java.util.LinkedList;



public class Demo {

   public static void main(String args[]) {

      LinkedList<Integer> linkedlist1 = new LinkedList<>();

      linkedlist1.add(001);

      linkedlist1.add(002);

      linkedlist1.add(003);

      linkedlist1.add(004);

      linkedlist1.add(005);

      linkedlist1.add(003);

      System.out.println("First index of 004 is : " + linkedlist1.indexOf(004));

      System.out.println("Last index of 004 is : " + linkedlist1.lastIndexOf(004));

   }

}