public class MySet<Item> implements Iterator<Item> {
private Node first;
private class Node {
private Item item;
private Node next;
public Node(Item item, Node next) {
this.item = item;
this.Node = next;
}
}
public void add(Item item) {
first = new Node(item, first);
}
public Iterator<Item> iterate {
return new MyIterator();
}
private class MyIterator implements Iterator<Item> {
Node current = first;
public boolean hasNext() return current != null;
public Item next() {
Item item = current.item;
//what is missing here?
return item;
}
}
}
