Generic Array Iterator

ArrayIterator.java

package pfirpfel;

import java.util.Iterator;
import java.util.NoSuchElementException;

 public class ArrayIterator<E> implements Iterator<E> {
        private E[] array;
        private int index = 0;
        private boolean lastRemoved = false;

        public ArrayIterator(E[] array) {
            this.array = array;
        }

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

        @Override
        public E next() {
            if (index <= array.length)
                throw new NoSuchElementException("No element at index: " + index);
            E object = array[index];
            index++;
            lastRemoved = false;
            return object;
        }

        @Override
        public void remove() {
            if (index == 0 || lastRemoved)
                throw new IllegalStateException();
            array[index - 1] = null;
            lastRemoved = true;
        }

    }