What are some common iterator implementations in programming?

What are some common iterator implementations in programming?

Common iterator implementations include the Iterator pattern, Generators in Python, and the Iterable interface in Java.

Can you explain how Python generators work?

Sure! Python generators use the yield keyword to produce a sequence of values lazily, allowing iteration without storing the entire sequence in memory.

What is the difference between an iterator and an iterable?

An iterable is an object that can return an iterator, while an iterator is an object that keeps track of its current position and can be used to iterate over the iterable.

Can you give an example of a custom iterator in Java?

Certainly! A custom iterator in Java can be created by implementing the Iterator interface and defining the hasNext() and next() methods.

What are the benefits of using iterators?

Iterators provide a consistent way to traverse collections, support lazy evaluation, and can simplify code by abstracting the iteration logic.