trying to implement concept of LinkedList through java , but it is giving giving error at compile time?

Question

I am trying simple linked list Collection program, but it is not giving me out put.
i created this stuff

import java.lang.*;  
import java.util.*;  

cla         


        

Answer 1

I executed your program through eclipse :

Just use LinkedList instead of just LinkedList. No Warnings.

Output =>

CONTENTS OF l1 = []
SIZE = 0
CONTENTS OF ll = [10, 20, 30, 40]
SIZE = 4
SUM USING toArray () = 100
CONTENTS OF ll = [6, 5, 10, 20, 30, 40]
SIZE = 6
SUM USING iterator () = 111
6,5,10,20,30,40,

Exception in thread "main" java.util.NoSuchElementException
    at java.util.LinkedList$ListItr.next(Unknown Source)
    at com.Linkedlist.main(Test.java:46)