What are some examples of iterators in Java?

What are some examples of iterators in Java?

In Java, common examples of iterators include the Iterator interface, ListIterator, and the for-each loop.

Can you explain how the Iterator interface works?

Sure! The Iterator interface allows you to traverse a collection without exposing its underlying structure. It has methods like hasNext() and next().

What is the difference between Iterator and ListIterator?

The main difference is that ListIterator can traverse the list in both directions (forward and backward), while Iterator can only go forward.

Can you give me a code example using an Iterator?

Certainly! Here's a simple example:

import java.util.ArrayList;
import java.util.Iterator;

public class Main {
    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<>();
        list.add("Apple");
        list.add("Banana");
        list.add("Cherry");

        Iterator<String> iterator = list.iterator();
        while (iterator.hasNext()) {
            System.out.println(iterator.next());
        }
    }
}