Home/ Questions/Q 4331720
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-21T10:09:08+00:00

I was just roaming through the API and it came to my attention that,

  • 0

I was just roaming through the API and it came to my attention that, Enumerations and Iterators aren’t very useful interfaces.

Specifically I mean, instead of saying (for Vector v):

for (Enumeration<E> e = v.elements(); e.hasMoreElements();)
   System.out.println(e.nextElement());

We can easily say:

for (int i = 0; i < v.size(); i++)
   System.out.println(v.elementAt(i));

What I wanted to know exactly is:

Are there any performance bonuses for using Enumerations/Iterators?

Has it provided you the ability to achieve something that cannot be achieved by the latter for loop?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I don’t think iterators and enumerations are about performance; they’re about better abstraction.

    You don’t need to know anything about the underlying data structure if you have an iterator. That’s why I think that interface is perfectly acceptable. I don’t agree with your statement that Iterator isn’t a useful interface. What methods would you add?

    • 0