Iterator confuson

OK. Trying to get a grip on collections and although iterating through using a FOR statement makes sense, using the iterator method confuses me.
How do I reference tempDog.getName() using an iterator in the below snippet;

import java.util.*;

public class Zoo 
{

public static void main(String[] args)
    {
        int rc;
        boolean bRc;
        Dog myDog = new Dog("Tank");
        Dog newDog = new Dog("Thor");

System.out.println("My Dog's name is " + myDog.getName());
        System.out.println(myDog.getName() + " has " + myDog.getNumberOfLegs() + " number of legs.");

System.out.println("My Dog's name is " + newDog.getName());
        System.out.println(newDog.getName() + " has " + newDog.getNumberOfLegs() + " number of legs.");
    
         Set<Dog> dogList = new HashSet<Dog>();
         bRc = dogList.add(myDog);
         System.out.println("Added my dog, rc:" + bRc);
         bRc = dogList.add(newDog);
         System.out.println("Added my dog, rc:" + bRc);

for(Dog tempDog :  dogList)
             System.out.println("name:" + tempDog.getName());

for(Iterator<?> it = dogList.iterator(); it.hasNext();)
             System.out.println("Iterated over:" + it.next()); //<-- this is where I am confused, can't you tell!

}
}

Iterator.next() first gives the current element and then traverse the pointer to the next element in the Iterator. Then iterator.hasnext() checks whether the element is present or not.

Note : pointer is not the C pointer

OK... I may have figured it out;

This works, but looks kindof ugly!

It's the first time I see an Iterator used with a for loop, but I still have lots to learn

I usually prefer using a while loop instead.

Moreover, you are iterating through a list of Dog instances, so you should take advantage of Java's Generics here. Instead of declaring an Iterator of ?, you should use an Iterator of Dog. No need to cast then.

Anyway, using an enhanced for loop would do the same, but would be even more concise :

Harshit Rastogi wrote:Note : pointer is not the C pointer

That's why Java calls them references