public DList concat(DList otherList)
    {
        DListImpl result = new DListImpl(pbKey);
        result.addAll(this);
        result.addAll(otherList);
        return result;
    }
public DList concat ( DList otherList ) { DListImpl result = new DListImpl ( pbKey ) ; result . addAll ( this ) ; result . addAll ( otherList ) ; return result ; }
Creates a new <code>DList</code> object that contains the contents of this
<code>DList</code> object concatenated
with the contents of the <code>otherList</code> object.
@param	otherList	The list whose elements are placed at the end of the list
returned by this method.
@return	A new <code>DList</code> that is the concatenation of this list and
the list referenced by <code>otherList</code>.