public Edge<T> findEdge(Edge<T> e)
   {
      if (outgoingEdges.contains(e))
         return e;
      else
         return null;
   }
public Edge<T> findEdge(Edge<T> e)
   {
      if (outgoingEdges.contains(e))
         return e;
      else
         return null;
   }
public Edge < T > findEdge ( Edge < T > e ) { if ( outgoingEdges . contains ( e ) ) return e ; else return null ; }
Search the outgoing edges for a match to e.

@param e - the edge to check
@return e if its a member of the outgoing edges, null
otherwise.
Search the outgoing edges for a match to e .