Initialization of iterators

Enumeration, Iterator, ListIterator are all interfaces

How can we create objects for interfaces then? ⇒ We don't.

What happens actually, is that the elements() method has a class within it which implements Enumeration interface. elements() returns the object of that class. This is how it works for other two cursor interfaces as well.

System.out.println(c.getClass().getName()); //c is an object of a iterator

Output -

vector$1              // if c is an Enumeration Object
vector$Itr            // if c is an Iterator Object
vector$ListItr        // if c is a List Iterator Object

vector$ means inner class of vector ( or whichever Collection class we're getting the object for)

1 means it is an anonymous inner class

Itr and ListItr are names of lang.java.paradigms.oo.inner class (Private)es implementing Iterator and ListIterator respectively.