What are the benefits of the Iterator interface in Java?

Question

I just learned about how the Java Collections Framework implements data structures in linked lists. From what I understand, Iterators are a way of traversing th

Answer 1

Iterators are one of the many design patterns available in java. Design patterns can be thought of as convenient building blocks, styles, usage of your code/structure.

To read more about the Iterator design pattern check out the this website that talks about Iterator as well as many other design patterns. Here is a snippet from the site on Iterator: http://www.patterndepot.com/put/8/Behavioral.html

The Iterator is one of the simplest and most frequently used of the design patterns. The Iterator pattern allows you to move through a list or collection of data using a standard interface without having to know the details of the internal representations of that data. In addition you can also define special iterators that perform some special processing and return only specified elements of the data collection.