java--container (interator)

"Interator Interface"

 <1> All container classes that implement the collection interface have a Interator method that returns an object that implements the Interaor interface. The <2> Interator object is called an iterator to facilitate the traversal of elements within a container. Note: Interator is used to implement a container traversal, which can be understood as a cursor pointer.  "Method" (the method that must be implemented)   "Program Analysis"  

java--container (interator)