Running time of Java Iterator

Happy to see you after a long time. I have started working on Java collections and I have tried measuring retrieval time for each collection iterator types using 1000 records in Java 8 and found below time(in seconds) for iteration.

List Name\Iterator types	Iterator	Foreach	For loop
Array List	0.0856	0.044	0.0491
Linked List	0.02867	0.0504	0.0467
Vector	0.0342	0.0444	0.0584

 

I have also tried to use for-each lambda expression, this gives below time for each list collection:

Vector - 0.17455

Linked List - 0.17691

Array List - 0.18599

Retrieval time for binarySearch() in collection:

Vector - 0.00377

Linked List - 0.00377

Array List - 0.01069