How does next() method on iterators work? - Stack Overflow 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 the collection
Which is more efficient, a for-each loop, or an iterator? 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 traverse over a collection to read its elements
How to navigate through a vector using iterators? (C++) 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
c++ - How do you loop through a std::map? - Stack Overflow I want to iterate through each element in the map lt;string, int gt; without knowing any of its string-int values or keys What I have so far: void output(map lt;string, int gt; table) { m