public Object firstElement() {   Object	element;  try { element = elements.get(0); return element; } catch (IndexOutOfBoundsException e) { throw new NoSuchElementException(); }  }
public Object firstElement() { return elements.firstElement(); }
	public Object firstElement() {		// Variables		Object	element;		try {			element = elements.get(0);			return element;		} catch (IndexOutOfBoundsException e) {			throw new NoSuchElementException();		} // try	} // firstElement()