Java Iterator/Iterable Example

import java.util.Iterator;

class IteratorExample<E> implements Iterator<E> {
    private int index;
    private E[] myArray;

    public IteratorExample(E[] arr) {
        myArray = arr;
        index = 0;
    }

    @Override
    public boolean hasNext() {
        return index < myArray.length;
    }

    @Override
    public E next() {
        E el = myArray[index];
        index += 1;
        return el;
    }
}

class IterableExample<T> implements Iterable<T> {
    private T[] myEls;

    public IterableExample(T[] els) {
        myEls = els;
    }

    @Override
    public Iterator<T> iterator() {
        return new IteratorExample<T>(myEls);
    }

    public static void main(String[] args) {
        IterableExample<String> iterable = new IterableExample<>(new String[] { "foo", "bar", "baz" });

        for (String str : iterable) {
            System.out.println(str);
        }

        // Same as:

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