An iterator is an object with a next (Python 2) or __next__ (Python 3) method. Whenever you use a for loop, or map, or a list comprehension, etc. in Python, the next method is called …

Aug 27, 2010 · The reverse iterator is work for nothing, since the standard library provides a reverse-iterator adapter. And you failed to make the iterator type assignable from the const …

Dec 6, 2017 · At the very first iteration, the iterator starts pointing to element with index 0? or like the "index -1" ? I ask because as far as I know the next() method returns the next element in …

Oct 3, 2012 · In Java, I would prefer a for-each loop or use iterators. Pretty much same as C++ although slightly different syntax.

Jul 28, 2011 · Iterator is class that manages iteration over an Iterable. It maintains a state of where we are in the current iteration, and knows what the next element is and how to get it.

Mar 8, 2014 · Learn how to iterate through a list of objects in C++ using various methods and techniques.

Iterator is an interface in the Java Collections framework that provides methods to traverse or iterate over a collection. Both iterator and for loop acts similar when your motive is to just …

What is the difference between iterators and generators? Some examples for when you would use each case would be helpful.

The goal is to access the "nth" element of a vector of strings instead of the [] operator or the "at" method. From what I understand, iterators can be used to navigate through containers, but I've ...

Iterators are what they are; to iterate to the next object of a collection (it can be anything like set, array, etc.) Why do they need to tell the size when they don't care what they are trying to …