class SimpleHashtable implements Iterable<TableEntry<K, V>> {

	public boolean containsKey(Object key) {
		if (key == null) {
			return false;
		}

		if (slotIsEmpty(key)) {
			return false;
		}

		return findKey(key).key.equals(key);
	}

	public  SimpleHashtable();
	@SuppressWarnings("unchecked") public  SimpleHashtable(int capacity);

}